:root {
    --ink: #172033;
    --muted: #596579;
    --paper: #fbfaf7;
    --panel: #ffffff;
    --line: #d9e0e8;
    --blue: #246bfe;
    --green: #17885b;
    --gold: #f5b540;
    --coral: #e85d5d;
    --teal: #138b96;
    --shadow: 0 18px 48px rgba(27, 37, 55, 0.14);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    background:
        linear-gradient(135deg, rgba(36, 107, 254, 0.10), transparent 34%),
        linear-gradient(225deg, rgba(245, 181, 64, 0.18), transparent 38%),
        var(--paper);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button {
    font: inherit;
}

[hidden] {
    display: none !important;
}

.app-shell {
    width: min(1180px, calc(100vw - 32px));
    margin: 0 auto;
    padding: 28px 0 32px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 18px;
}

.book-reader-active .topbar {
    display: none;
}

.book-reader-active .app-shell {
    padding-top: 8px;
}

.eyebrow {
    margin: 0 0 4px;
    color: var(--teal);
    font-size: 0.86rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1,
h2,
p {
    margin: 0;
}

h1 {
    font-size: clamp(2.1rem, 3vw, 3.1rem);
    line-height: 1;
}

.progress {
    display: grid;
    gap: 8px;
    min-width: 180px;
    color: var(--muted);
    font-weight: 700;
    text-align: right;
}

.progress-track {
    height: 10px;
    overflow: hidden;
    border-radius: 999px;
    background: #e6ebf1;
}

.progress-track span {
    display: block;
    width: 3.846%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--green), var(--blue));
    transition: width 180ms ease;
}

.topbar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-left: auto;
}

.home-link {
    display: inline-grid;
    min-height: 44px;
    align-items: center;
    padding: 0 16px;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.9);
    font-weight: 850;
    text-decoration: none;
}

.home-link:hover,
.home-link:focus-visible,
.activity-card:hover,
.activity-card:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
}

.home-view {
    display: grid;
    gap: 18px;
    padding-top: 8px;
}

.games-view {
    display: grid;
    gap: 18px;
    padding-top: 8px;
}

.games-heading {
    display: grid;
    gap: 4px;
}

.home-view h2,
.games-view h2,
.vowel-menu-view h2 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
}

.home-grid,
.games-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.home-grid > .activity-card:nth-child(n + 5) {
    display: none;
}

.home-grid > .activity-card.activity-card-phaser-letter-game {
    display: grid;
}

.home-grid > .activity-card.activity-card-letter-match-game {
    display: grid;
}

.home-grid > .activity-card.activity-card-alphabet-match-up {
    display: grid;
}

.home-grid > .activity-card.activity-card-beginning-sounds-arrow {
    display: grid;
}

.home-grid > .activity-card.activity-card-beginning-sound-match {
    display: grid;
}

.home-grid > .activity-card.activity-card-beginning-sound-match-up {
    display: grid;
}

.home-grid > .activity-card.activity-card-consonant-blend-arrows {
    display: grid;
}

.home-grid > .activity-card.activity-card-consonant-blend-match {
    display: grid;
}

.home-grid > .activity-card.activity-card-consonant-blend-match-up {
    display: grid;
}

.home-grid > .activity-card.activity-card-long-vowel-pair-arrows {
    display: grid;
}

.home-grid > .activity-card.activity-card-long-vowel-pair-match {
    display: grid;
}

.home-grid > .activity-card.activity-card-long-vowel-pair-match-up {
    display: grid;
}

.home-grid > .activity-card.activity-card-find-letter-a {
    display: grid;
}

.home-grid > .activity-card.activity-card-connect-alphabet {
    display: grid;
}

.home-grid > .activity-card.activity-card-bunny-hop {
    display: grid;
}

.home-grid > .activity-card.activity-card-bunny-hop-lowercase {
    display: grid;
}

.home-grid > .activity-card.activity-card-vowels {
    display: grid;
}

.home-grid > .activity-card.activity-card-long-vowel-circle-game {
    display: grid;
}

.home-grid > .activity-card.activity-card-youtube-short {
    display: grid;
}

.home-grid > .activity-card.activity-card-sight-words {
    display: grid;
}

.home-grid > .activity-card.activity-card-family-group {
    display: grid;
}

.home-grid > .activity-card.activity-card-short-a-family {
    display: grid;
}

.home-grid > .activity-card.activity-card-short-a-scramble {
    display: grid;
}

.home-grid > .activity-card.activity-card-missing-vowels {
    display: grid;
}

.home-grid > .activity-card.activity-card-rhyming-match {
    display: grid;
}

.home-grid > .activity-card.activity-card-short-e-family {
    display: grid;
}

.home-grid > .activity-card.activity-card-word-family {
    display: grid;
}

.home-grid > .activity-card[href="#letter-game"],
.home-grid > .activity-card[href="#phaser-letter-game"],
.home-grid > .activity-card[href="#letter-match-game"],
.home-grid > .activity-card[href="#picture-letter-game"],
.home-grid > .activity-card[href="#alphabet-match-up"],
.home-grid > .activity-card[href="#beginning-sounds-arrows"],
.home-grid > .activity-card[href="#beginning-sound-match"],
.home-grid > .activity-card[href="#beginning-sound-match-up"],
.home-grid > .activity-card[href="#consonant-blend-arrows"],
.home-grid > .activity-card[href="#consonant-blend-match"],
.home-grid > .activity-card[href="#consonant-blend-match-up"],
.home-grid > .activity-card[href="#long-vowel-pairs-blend-arrows"],
.home-grid > .activity-card[href="#long-vowel-pairs-blend-match"],
.home-grid > .activity-card[href="#long-vowel-pairs-blend-match-up"],
.home-grid > .activity-card[href="#find-letter-a-uppercase"],
.home-grid > .activity-card[href="#connect-alphabet"],
.home-grid > .activity-card[href="#alphabet-bunny-hop"],
.home-grid > .activity-card[href="#alphabet-bunny-hop-lowercase"],
.home-grid > .activity-card[href="#long-vowel-circle-game"],
.home-grid > .activity-card[href="#short-a-scramble"],
.home-grid > .activity-card[href="#missing-vowels"],
.home-grid > .activity-card[href="#rhyming-short-a"],
.home-grid > .activity-card[href="#rhyming-short-e"],
.home-grid > .activity-card[href="#rhyming-short-i"],
.home-grid > .activity-card[href="#rhyming-short-o"],
.home-grid > .activity-card[href="#rhyming-short-u"],
.home-grid > .activity-card[href="#rhyming-long-a"],
.home-grid > .activity-card[href="#rhyming-long-e"],
.home-grid > .activity-card[href="#rhyming-long-i"],
.home-grid > .activity-card[href="#rhyming-long-o"],
.home-grid > .activity-card[href="#short-a-family"],
.home-grid > .activity-card[href="#short-e-family"],
.home-grid > .activity-card[href="#short-i-family"],
.home-grid > .activity-card[href="#short-o-family"],
.home-grid > .activity-card[href="#short-u-family"],
.home-grid > .activity-card[href="#long-a-family"],
.home-grid > .activity-card[href="#long-e-family"],
.home-grid > .activity-card[href="#long-i-family"],
.home-grid > .activity-card[href="#long-o-family"] {
    display: none !important;
}

.vowel-menu-view {
    display: grid;
    gap: 18px;
    padding-top: 8px;
}

.vowel-choice-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.activity-card {
    display: grid;
    grid-template-rows: auto auto 1fr;
    gap: 14px;
    min-height: 360px;
    padding: 26px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--shadow);
    text-decoration: none;
    transition: transform 150ms ease, box-shadow 150ms ease;
}

.activity-card:hover,
.activity-card:focus-visible {
    transform: translateY(-2px);
}

.activity-mark {
    display: grid;
    min-height: 170px;
    place-items: center;
    border-radius: 8px;
    color: white;
    background: linear-gradient(160deg, var(--blue), #123b8d);
    font-size: clamp(4rem, 9vw, 8rem);
    font-weight: 950;
    line-height: 0.9;
}

.tile-icon {
    width: min(76%, 132px);
    height: min(76%, 132px);
    color: white;
    overflow: visible;
}

.tile-scene {
    width: min(84%, 146px);
    height: min(84%, 146px);
}

.tile-icon rect,
.tile-icon path,
.tile-icon circle {
    fill: rgba(255, 255, 255, 0.16);
    stroke: currentColor;
    stroke-width: 6;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.tile-icon text {
    fill: currentColor;
    font-family: Inter, ui-sans-serif, system-ui, sans-serif;
    font-size: 20px;
    font-weight: 950;
    text-anchor: middle;
    dominant-baseline: middle;
}

.activity-card-vowels .activity-mark {
    background: linear-gradient(160deg, var(--green), #0a5963);
    font-size: clamp(2.6rem, 5vw, 4.4rem);
}

.activity-card-consonants .activity-mark {
    background: linear-gradient(160deg, #2a6f97, #253f66);
    font-size: clamp(2.4rem, 5vw, 4.2rem);
}

.activity-card-classroom .activity-mark {
    background: linear-gradient(160deg, #437f52, #23536c);
    font-size: clamp(2.4rem, 5vw, 4.2rem);
}

.activity-card-playground .activity-mark {
    background: linear-gradient(160deg, #1c9bd1, #3d7b39);
    font-size: clamp(2.4rem, 5vw, 4.2rem);
}

.activity-card-long-vowels .activity-mark {
    background: linear-gradient(160deg, #0f8f7b, #17436c);
    font-size: clamp(2.4rem, 5vw, 4.2rem);
}

.activity-card-vowel-pairs .activity-mark {
    background: linear-gradient(160deg, #2570c8, #24523e);
    font-size: clamp(2.4rem, 5vw, 4.2rem);
}

.activity-card-long-vowel-pairs .activity-mark {
    background: linear-gradient(160deg, #6b5bd6, #24523e);
    font-size: clamp(2.4rem, 5vw, 4.2rem);
}

.activity-card-all-vowel-pairs .activity-mark {
    background: linear-gradient(160deg, #995fb8, #23536c);
    font-size: clamp(2.4rem, 5vw, 4.2rem);
}

.activity-card-stories .activity-mark {
    background: linear-gradient(160deg, var(--coral), #8d2437);
    font-size: clamp(2.3rem, 5vw, 4.1rem);
}

.activity-card-image-story .activity-mark {
    background: linear-gradient(160deg, #d05b42, #265f4a);
    font-size: clamp(2.3rem, 5vw, 4.1rem);
}

.activity-card-image-story-2 .activity-mark {
    background: linear-gradient(160deg, #2b9a68, #285f9b);
    font-size: clamp(2.3rem, 5vw, 4.1rem);
}

.activity-card-image-story-3 .activity-mark {
    background: linear-gradient(160deg, #c8a22b, #2b7a58);
    font-size: clamp(2.3rem, 5vw, 4.1rem);
}

.activity-card-resources .activity-mark {
    background: linear-gradient(160deg, var(--gold), #9b5b08);
    font-size: clamp(2.8rem, 5vw, 4.8rem);
}

.activity-card-sight-words .activity-mark {
    background: linear-gradient(160deg, #6b5bd6, #18436f);
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.activity-card-games .activity-mark {
    background: linear-gradient(160deg, #fde68a, #bfdbfe);
}

.games-tile-mark {
    display: grid;
    gap: 12px;
    place-items: center;
}

.games-tile-mark span:first-child {
    display: grid;
    width: 72px;
    height: 72px;
    place-items: center;
    border-radius: 999px;
    color: #ffffff;
    background: #f97316;
    box-shadow: 0 7px 0 rgba(33, 49, 79, 0.16);
    font-size: 2.2rem;
    font-weight: 950;
}

.games-tile-mark span:last-child {
    font-size: clamp(2.1rem, 5vw, 4rem);
    font-weight: 950;
}

.activity-card-short-a-family .activity-mark {
    background: linear-gradient(160deg, #ffbf47, #d95b45);
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.activity-card-short-a-scramble .activity-mark {
    background: linear-gradient(160deg, #ffe08a, #d95b45 58%, #2c9f6f);
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.activity-card-short-a-scramble,
.activity-card-short-a-scramble * {
    cursor: pointer;
}

.activity-card-short-a-scramble .activity-mark,
.activity-card-short-a-scramble .activity-mark * {
    pointer-events: none;
}

.short-a-scramble-tile-mark {
    display: grid;
    align-content: center;
    justify-items: center;
    gap: 14px;
    padding: 22px;
}

.short-a-scramble-picture {
    display: grid;
    width: min(100%, 154px);
    min-height: 72px;
    place-items: center;
    border: 7px solid rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    color: white;
    background: rgba(255, 255, 255, 0.18);
    box-shadow: inset 0 -5px 0 rgba(33, 49, 79, 0.12);
    font-size: 1.55rem;
    font-weight: 950;
    line-height: 1;
}

.short-a-scramble-slots {
    display: grid;
    grid-template-columns: repeat(3, 42px);
    gap: 8px;
}

.short-a-scramble-slots span {
    display: grid;
    min-height: 34px;
    place-items: center;
    border: 4px solid rgba(255, 255, 255, 0.92);
    border-radius: 8px;
    color: white;
    font-size: 1.1rem;
    font-weight: 950;
    line-height: 1;
}

.activity-card-short-a-scramble .activity-title {
    font-size: clamp(1.55rem, 2.6vw, 2.15rem);
    line-height: 1.05;
}

.activity-card-missing-vowels .activity-mark {
    background: linear-gradient(160deg, #99f6e4, #facc15);
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.activity-card-rhyming-match .activity-mark {
    background: linear-gradient(160deg, #fde68a, #38bdf8);
    font-size: clamp(2.4rem, 5vw, 4.2rem);
    font-weight: 950;
}

.activity-card-beginning-sound-match .activity-mark {
    background: linear-gradient(160deg, #fff7d6, #bbf7d0);
}

.activity-card-beginning-sound-match-up .activity-mark {
    background: linear-gradient(160deg, #dbeafe, #fef3c7);
}

.activity-card-consonant-blend-arrows .activity-mark {
    background: linear-gradient(160deg, #ccfbf1, #bfdbfe);
}

.activity-card-consonant-blend-match .activity-mark {
    background: linear-gradient(160deg, #dcfce7, #fde68a);
}

.activity-card-consonant-blend-match-up .activity-mark {
    background: linear-gradient(160deg, #dbeafe, #c4b5fd);
}

.activity-card-long-vowel-pair-arrows .activity-mark {
    background: linear-gradient(160deg, #fef3c7, #bae6fd);
}

.activity-card-long-vowel-pair-match .activity-mark {
    background: linear-gradient(160deg, #cffafe, #fef08a);
}

.activity-card-long-vowel-pair-match-up .activity-mark {
    background: linear-gradient(160deg, #bfdbfe, #86efac);
}

.consonant-blend-match-tile-mark,
.consonant-blend-match-up-tile-mark,
.long-vowel-pair-match-tile-mark,
.long-vowel-pair-match-up-tile-mark {
    position: relative;
    overflow: hidden;
}

.consonant-blend-match-tile-mark img,
.consonant-blend-match-up-tile-mark img,
.long-vowel-pair-match-tile-mark img,
.long-vowel-pair-match-up-tile-mark img {
    width: 58%;
    height: 58%;
    object-fit: contain;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 8px 18px rgba(33, 49, 79, 0.16);
}

.consonant-blend-match-tile-mark span,
.consonant-blend-match-up-tile-mark span,
.long-vowel-pair-match-tile-mark span,
.long-vowel-pair-match-up-tile-mark span {
    position: absolute;
    right: 12px;
    bottom: 10px;
    color: #21314f;
    font-size: clamp(1.4rem, 4vw, 2.2rem);
    font-weight: 950;
}

.consonant-blend-match-up-tile-mark,
.long-vowel-pair-match-up-tile-mark {
    display: grid;
    grid-template-columns: 1fr 1fr;
    place-items: center;
    gap: 6px;
}

.consonant-blend-match-up-tile-mark img,
.long-vowel-pair-match-up-tile-mark img {
    width: 72%;
    height: 72%;
}

.activity-card-rhyming-short-e .activity-mark {
    background: linear-gradient(160deg, #bbf7d0, #60a5fa);
}

.activity-card-rhyming-short-i .activity-mark {
    background: linear-gradient(160deg, #c7d2fe, #fb7185);
}

.activity-card-rhyming-short-o .activity-mark {
    background: linear-gradient(160deg, #fed7aa, #2dd4bf);
}

.activity-card-rhyming-short-u .activity-mark {
    background: linear-gradient(160deg, #ddd6fe, #facc15);
}

.activity-card-rhyming-long-a .activity-mark {
    background: linear-gradient(160deg, #bfdbfe, #fbbf24);
}

.activity-card-rhyming-long-e .activity-mark {
    background: linear-gradient(160deg, #a7f3d0, #818cf8);
}

.activity-card-rhyming-long-i .activity-mark {
    background: linear-gradient(160deg, #fecdd3, #22d3ee);
}

.activity-card-rhyming-long-o .activity-mark {
    background: linear-gradient(160deg, #fed7aa, #34d399);
}

.activity-card-short-e-family .activity-mark {
    background: linear-gradient(160deg, #38b58a, #215c8c);
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.activity-card-word-family .activity-mark {
    background: linear-gradient(160deg, #4f8fff, #2a5a7f);
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.activity-card-short-family-words .activity-mark {
    background: linear-gradient(160deg, #38b58a, #215c8c);
}

.activity-card-long-family-words .activity-mark {
    background: linear-gradient(160deg, #8bdc65, #215c8c);
}

.activity-card-long-vowel-circle-game .activity-mark {
    background: linear-gradient(160deg, #0f8f7b, #3159b8);
}

.activity-card-long-a-family .activity-mark,
.activity-card-long-e-family .activity-mark,
.activity-card-long-i-family .activity-mark,
.activity-card-long-o-family .activity-mark {
    background: linear-gradient(160deg, #8bdc65, #215c8c);
}

.activity-card-consonant-blends .activity-mark {
    background: linear-gradient(160deg, #0f9f8f, #5a4ac8);
}

.activity-title {
    font-size: clamp(1.7rem, 3vw, 2.3rem);
    font-weight: 950;
    line-height: 1;
}

.activity-copy {
    color: var(--muted);
    font-size: 1.08rem;
    font-weight: 750;
    line-height: 1.35;
}

.lesson-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 20px;
    align-items: stretch;
}

.lesson-layout[data-activity="consonant-blends"] {
    grid-template-columns: minmax(0, 1fr) 360px;
    height: calc(100vh - 194px);
    min-height: 0;
    overflow: hidden;
}

.lesson-layout[data-activity="long-vowel-pairs-blend"] {
    grid-template-columns: minmax(0, 1fr) 360px;
}

.stories-view {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 20px;
    align-items: stretch;
}

.resources-view {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 20px;
    align-items: stretch;
}

.image-story-view {
    display: block;
}

.classroom-view {
    display: block;
}

.classroom-panel {
    display: grid;
    gap: 16px;
    padding: 26px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--shadow);
}

.classroom-heading {
    display: grid;
    gap: 6px;
}

.classroom-heading h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1;
}

.classroom-prompt {
    max-width: 560px;
    padding: 14px 18px;
    border-radius: 8px;
    color: white;
    background: #172033;
    font-size: 1.12rem;
    font-weight: 850;
}

.classroom-scene-wrap {
    position: relative;
    overflow: hidden;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    background: #f7fbff;
}

.classroom-scene {
    display: block;
    width: 100%;
    height: auto;
}

.classroom-object {
    position: absolute;
    display: grid;
    place-items: center;
    min-width: 102px;
    min-height: 52px;
    padding: 8px 18px;
    border: 0;
    border-radius: 14px;
    color: transparent;
    background: transparent;
    box-shadow: none;
    cursor: pointer;
    font-size: clamp(0.9rem, 2vw, 1.25rem);
    font-weight: 950;
    text-transform: lowercase;
    white-space: nowrap;
}

.classroom-object:hover,
.classroom-object:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.34);
    outline-offset: 2px;
}

.classroom-object:hover {
    outline-color: transparent;
}

.classroom-object.roof { left: 39%; top: 11.4%; min-width: 112px; }
.classroom-object.fan { left: 18.2%; top: 22.1%; min-width: 116px; }
.classroom-object.wall { left: 70.2%; top: 25.2%; min-width: 120px; }
.classroom-object.television { left: 43.6%; top: 34.1%; min-width: 176px; }
.classroom-object.switch { left: 67.6%; top: 46.7%; min-width: 150px; }
.classroom-object.cupboard { left: 17%; top: 38.9%; min-width: 164px; }
.classroom-object.book { left: 27.6%; top: 46.2%; min-width: 114px; }
.classroom-object.table { left: 35.2%; top: 63.1%; min-width: 124px; }
.classroom-object.board { left: 66.8%; top: 67.5%; min-width: 284px; }
.classroom-object.floor { left: 56%; top: 75.9%; min-width: 146px; }

.classroom-object.playground-sky { left: 61.5%; top: 13%; min-width: 70px; min-height: 36px; }
.classroom-object.playground-tank { left: 36.4%; top: 24.3%; min-width: 78px; min-height: 38px; }
.classroom-object.playground-kite { left: 73%; top: 23.6%; min-width: 80px; min-height: 50px; }
.classroom-object.playground-tree { left: 58.7%; top: 31.1%; min-width: 82px; min-height: 40px; }
.classroom-object.playground-bench { left: 58.4%; top: 42%; min-width: 100px; min-height: 40px; }
.classroom-object.playground-bat { left: 66.4%; top: 49%; min-width: 76px; min-height: 38px; }
.classroom-object.playground-girl { left: 16.8%; top: 48.1%; min-width: 76px; min-height: 40px; }
.classroom-object.playground-swing { left: 46.8%; top: 47.9%; min-width: 88px; min-height: 40px; }
.classroom-object.playground-boy { left: 70.2%; top: 63.4%; min-width: 80px; min-height: 42px; }
.classroom-object.playground-top { left: 78.3%; top: 75%; min-width: 76px; min-height: 40px; }
.classroom-object.playground-slide { left: 40.5%; top: 79.4%; min-width: 92px; min-height: 40px; }
.classroom-object.playground-dog { left: 76.1%; top: 81.8%; min-width: 88px; min-height: 40px; }

.stage,
.alphabet-panel,
.stories-player-panel,
.story-list-panel,
.resources-reader-panel,
.resource-list-panel,
.image-story-panel,
.image-story-transcript-panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--shadow);
}

.image-story-panel {
    display: grid;
    gap: 18px;
    padding: 26px;
}

.book-reader-view .image-story-panel {
    position: relative;
    display: grid;
    grid-template-rows: minmax(0, 1fr);
    place-items: center;
    gap: 10px;
    min-height: calc(100vh - 18px);
    padding: 8px 210px 8px 8px;
    border-color: transparent;
    background: transparent;
    box-shadow: none;
}

.book-reader-view .image-story-panel .classroom-heading {
    display: none;
}

.story-read-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.book-toolbar-left {
    display: contents;
}

.book-toolbar-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.book-reader-view .story-read-actions {
    position: absolute;
    top: 16px;
    right: 14px;
    left: auto;
    transform: none;
    z-index: 8;
    display: grid;
    align-items: start;
    gap: 10px;
    width: 172px;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    pointer-events: none;
}

.book-reader-view .book-toolbar-left {
    display: grid;
    gap: 6px;
    align-content: center;
    justify-items: stretch;
    width: 172px;
    pointer-events: auto;
}

.book-reader-view .book-toolbar-controls {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-end;
    width: 172px;
    padding: 10px;
    border: 1px solid rgba(212, 220, 231, 0.82);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 18px 44px rgba(23, 32, 51, 0.18);
    backdrop-filter: blur(10px);
    gap: 8px;
    pointer-events: auto;
}

.book-reader-view .story-read-actions .primary-action,
.book-reader-view .story-read-actions .secondary-action {
    display: inline-grid;
    place-items: center;
    flex: 0 1 auto;
    width: 100%;
    min-width: 92px;
    min-height: 42px;
    padding: 0 12px;
}

.book-home-action {
    text-decoration: none;
}

.book-toolbar-title {
    display: grid;
    min-height: 42px;
    place-items: center;
    padding: 10px 12px;
    border: 1px solid rgba(212, 220, 231, 0.82);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 18px 44px rgba(23, 32, 51, 0.18);
    backdrop-filter: blur(10px);
    color: var(--ink);
    font-size: 1.05rem;
    font-weight: 950;
    line-height: 1.1;
    text-align: center;
}

.primary-action,
.secondary-action {
    min-height: 48px;
    padding: 0 18px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 900;
}

.primary-action {
    color: white;
    border: 1px solid transparent;
    background: var(--blue);
}

.secondary-action {
    color: var(--ink);
    border: 1px solid #d4dce7;
    background: #fff;
}

.primary-action:disabled,
.secondary-action:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.book-page-count,
.sentence-box-count {
    display: inline-grid;
    min-height: 48px;
    align-items: center;
    color: var(--muted);
    font-weight: 850;
}

.sentence-box-count[data-status="mismatch"] {
    color: #a15c00;
}

.book-reader-view .book-page-count,
.book-reader-view .sentence-box-count {
    flex: 0 0 auto;
    justify-content: center;
    width: 100%;
    min-width: 96px;
    text-align: center;
}

.primary-action:hover,
.primary-action:focus-visible,
.secondary-action:hover,
.secondary-action:focus-visible,
.image-story-line:hover,
.image-story-line:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
}

.image-story-frame {
    position: relative;
    overflow: hidden;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    background: #e9f6ee;
}

.book-reader-view .image-story-frame {
    order: 1;
}

.hotspot-editor-panel {
    display: grid;
    gap: 10px;
    padding: 14px;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    background: #ffffff;
}

.book-reader-view .hotspot-editor-panel {
    position: absolute;
    z-index: 9;
    top: 18px;
    right: 18px;
    width: min(360px, calc(100% - 36px));
    box-shadow: 0 18px 44px rgba(23, 32, 51, 0.18);
}

.hotspot-editor-panel[hidden] {
    display: none;
}

.hotspot-editor-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.hotspot-editor-actions .secondary-action {
    min-height: 38px;
    padding: 0 12px;
}

.hotspot-editor-panel textarea {
    width: 100%;
    min-height: 180px;
    resize: vertical;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    padding: 10px;
    color: var(--ink);
    font: 0.78rem/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.image-story-page {
    display: block;
    width: 100%;
    height: auto;
}

.image-story-region {
    position: absolute;
    z-index: 1;
    border: 3px solid transparent;
    border-radius: 14px;
    background: transparent;
    cursor: pointer;
    transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.hotspot-edit-mode .image-story-region,
.hotspot-edit-mode .book-word-region,
.hotspot-edit-mode .book-activity-region {
    z-index: 4;
    border-color: rgba(228, 55, 55, 0.95);
    background: rgba(255, 221, 76, 0.25);
    box-shadow: none;
    touch-action: none;
}

.hotspot-edit-mode .image-story-region::before,
.hotspot-edit-mode .book-word-region::before,
.hotspot-edit-mode .book-activity-region::before {
    content: attr(data-edit-label);
    position: absolute;
    left: 3px;
    top: 3px;
    min-width: 18px;
    min-height: 18px;
    display: grid;
    place-items: center;
    border-radius: 999px;
    color: #ffffff;
    background: #d93636;
    font-size: 0.75rem;
    font-weight: 950;
}

.hotspot-edit-mode .image-story-region::after,
.hotspot-edit-mode .book-word-region::after,
.hotspot-edit-mode .book-activity-region::after {
    content: "";
    position: absolute;
    right: -3px;
    bottom: -3px;
    width: 18px;
    height: 18px;
    border-radius: 4px 0 8px 0;
    background:
        linear-gradient(135deg, transparent 0 45%, rgba(217, 54, 54, 0.95) 45% 60%, transparent 60%),
        rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(217, 54, 54, 0.95);
}

.image-story-region:hover,
.image-story-region:focus-visible {
    z-index: 3;
    outline: 4px solid rgba(36, 107, 254, 0.30);
    outline-offset: 2px;
}

.image-story-region[aria-current="true"] {
    z-index: 2;
    border-color: rgba(255, 255, 255, 0.96);
    background: rgba(255, 255, 255, 0.08);
    box-shadow:
        0 0 0 9999px rgba(23, 32, 51, 0.38),
        0 0 0 7px rgba(255, 214, 77, 0.34),
        0 0 28px rgba(255, 255, 255, 0.86);
}

.image-story-frame[data-story-id^="book-reader-page-"] {
    justify-self: center;
    width: min(100%, calc((100vh - 32px) * 600 / 798), 1040px);
    box-shadow: 0 24px 60px rgba(23, 32, 51, 0.16);
}

.image-story-frame[data-region-layout="rows"] .story-line-1 { left: 10%; top: 10%; width: 80%; height: 6%; border-radius: 18px; }
.image-story-frame[data-region-layout="rows"] .story-line-2 { left: 10%; top: 19%; width: 80%; height: 6%; border-radius: 18px; }
.image-story-frame[data-region-layout="rows"] .story-line-3 { left: 10%; top: 28%; width: 80%; height: 6%; border-radius: 18px; }
.image-story-frame[data-region-layout="rows"] .story-line-4 { left: 10%; top: 37%; width: 80%; height: 6%; border-radius: 18px; }
.image-story-frame[data-region-layout="rows"] .story-line-5 { left: 10%; top: 46%; width: 80%; height: 6%; border-radius: 18px; }
.image-story-frame[data-region-layout="rows"] .story-line-6 { left: 10%; top: 55%; width: 80%; height: 6%; border-radius: 18px; }
.image-story-frame[data-region-layout="rows"] .story-line-7 { left: 10%; top: 64%; width: 80%; height: 6%; border-radius: 18px; }
.image-story-frame[data-region-layout="rows"] .story-line-8 { left: 10%; top: 73%; width: 80%; height: 6%; border-radius: 18px; }
.image-story-frame[data-region-layout="rows"] .story-line-9 { left: 10%; top: 82%; width: 80%; height: 6%; border-radius: 18px; }

.book-word-region {
    position: absolute;
    z-index: 2;
    min-width: 50px;
    min-height: 32px;
    border: 3px solid transparent;
    border-radius: 12px;
    background: transparent;
    cursor: pointer;
}

.book-activity-region {
    position: absolute;
    left: 10%;
    top: 10%;
    z-index: 1;
    width: 80%;
    height: 12%;
    border: 3px solid transparent;
    border-radius: 18px;
    background: transparent;
    pointer-events: none;
}

.hotspot-edit-mode .book-activity-region {
    pointer-events: auto;
    cursor: pointer;
}

.book-word-region:hover,
.book-word-region:focus-visible,
.book-activity-region:hover,
.book-activity-region:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.34);
    outline-offset: 2px;
}

.image-story-frame[data-story-id="book-reader-page-8"] .book-word-boy { left: 67.5%; top: 60.3%; width: 13.8%; height: 5.1%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-pencil { left: 72.9%; top: 71.4%; width: 15.3%; height: 5.8%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-bag { left: 25.5%; top: 84.7%; width: 15.9%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-notebook { left: 71.3%; top: 81%; width: 16.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-smartboard { left: 57.8%; top: 36.8%; width: 18.3%; height: 5.2%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-air-conditioner { left: 20.7%; top: 23.3%; width: 26.6%; height: 5.6%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-door { left: 12.9%; top: 50.9%; width: 14.1%; height: 5.2%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-window { left: 29.1%; top: 47.7%; width: 17.5%; height: 5.4%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-laptop { left: 60.8%; top: 50.4%; width: 18.1%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-light { left: 41.8%; top: 17.8%; width: 18.2%; height: 5.2%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-projector { left: 64%; top: 31.2%; width: 19.1%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-girl { left: 46.8%; top: 59.3%; width: 14.1%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-8"] .book-word-stool { left: 45.7%; top: 77%; width: 13.8%; height: 5%; border-radius: 12px; }

.image-story-frame[data-story-id="book-reader-page-9"] .book-word-book { left: 23.7%; top: 44.2%; width: 18.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-9"] .book-word-cupboard { left: 9%; top: 36.7%; width: 26.6%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-9"] .book-word-low-level-board { left: 60.3%; top: 65.2%; width: 29.7%; height: 6%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-9"] .book-word-fan { left: 16.2%; top: 21.1%; width: 18.6%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-9"] .book-word-television { left: 39.4%; top: 33.1%; width: 28.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-9"] .book-word-wall { left: 64%; top: 23.8%; width: 19.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-9"] .book-word-floor { left: 51.3%; top: 73.2%; width: 23.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-9"] .book-word-roof { left: 34.2%; top: 10.7%; width: 18.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-9"] .book-word-switch { left: 59.6%; top: 45.2%; width: 24.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-9"] .book-word-table { left: 29.7%; top: 61%; width: 20.7%; height: 5%; border-radius: 12px; }

.image-story-frame[data-story-id="book-reader-page-20"] .book-word-sky { left: 61.5%; top: 9.6%; width: 12%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-tank { left: 33.5%; top: 21.6%; width: 13%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-kite { left: 74%; top: 20.3%; width: 14%; height: 6%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-tree { left: 57.8%; top: 28.3%; width: 14%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-bench { left: 58%; top: 40.3%; width: 16.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-bat { left: 66.1%; top: 47%; width: 13%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-girl { left: 11.2%; top: 46.4%; width: 13%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-swing { left: 44.8%; top: 46%; width: 14.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-boy { left: 69.9%; top: 65%; width: 13%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-top { left: 79.4%; top: 74.1%; width: 13%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-slide { left: 40.5%; top: 79.2%; width: 14.8%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-20"] .book-word-dog { left: 76.5%; top: 81.3%; width: 14.7%; height: 5%; border-radius: 12px; }

.image-story-frame[data-story-id="book-reader-page-21"] .book-word-clouds { left: 14.2%; top: 12.2%; width: 15.8%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-21"] .book-word-sun { left: 46.6%; top: 11.7%; width: 12%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-21"] .book-word-van { left: 69.3%; top: 26%; width: 13%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-21"] .book-word-gate { left: 42.2%; top: 31%; width: 13%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-21"] .book-word-balloon { left: 32.4%; top: 49.7%; width: 15.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-21"] .book-word-ball { left: 55.3%; top: 58.1%; width: 12%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-21"] .book-word-marbles { left: 62.9%; top: 71.1%; width: 15.7%; height: 5%; border-radius: 12px; }
.image-story-frame[data-story-id="book-reader-page-21"] .book-word-bicycle { left: 24.5%; top: 81.8%; width: 15.7%; height: 5%; border-radius: 12px; }

.image-story-frame[data-story-id="book-reader-page-51"] .book-word-lion { left: 42%; top: 20%; width: 10%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-cub { left: 49%; top: 25%; width: 10%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-duck { left: 64%; top: 21%; width: 12%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-duckling { left: 53%; top: 29%; width: 16%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-pig { left: 30%; top: 35%; width: 10%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-piglet { left: 47%; top: 35%; width: 12%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-foal { left: 63%; top: 35%; width: 10%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-zebra { left: 80%; top: 37%; width: 12%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-hen { left: 29%; top: 52%; width: 10%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-chick { left: 39%; top: 58%; width: 12%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-goat { left: 68%; top: 59%; width: 11%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-kid { left: 55%; top: 65%; width: 9%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-elephant { left: 30%; top: 73%; width: 16%; height: 5%; }
.image-story-frame[data-story-id="book-reader-page-51"] .book-word-calf { left: 48%; top: 74%; width: 10%; height: 5%; }

.image-story-frame[data-story-id="story-reader-1"] .story-line-1 { left: 31%; top: 2.8%; width: 48%; height: 5.8%; }
.image-story-frame[data-story-id="story-reader-1"] .story-line-2 { left: 33.8%; top: 24.4%; width: 27%; height: 6.2%; border-radius: 20px; }
.image-story-frame[data-story-id="story-reader-1"] .story-line-3 { left: 15.8%; top: 42%; width: 42.2%; height: 6.2%; border-radius: 20px; }
.image-story-frame[data-story-id="story-reader-1"] .story-line-4 { left: 12%; top: 50.2%; width: 56%; height: 5.8%; }
.image-story-frame[data-story-id="story-reader-1"] .story-line-5 { left: 35%; top: 70.8%; width: 26%; height: 6.2%; border-radius: 20px; }
.image-story-frame[data-story-id="story-reader-1"] .story-line-6 { left: 20.6%; top: 87%; width: 32%; height: 4.8%; border-radius: 20px; }

.image-story-frame[data-story-id="story-reader-2"] .story-line-1 { left: 15%; top: 10.4%; width: 60%; height: 4.1%; }
.image-story-frame[data-story-id="story-reader-2"] .story-line-2 { left: 17%; top: 29.8%; width: 24%; height: 5.3%; border-radius: 20px; }
.image-story-frame[data-story-id="story-reader-2"] .story-line-3 { left: 44.5%; top: 41.5%; width: 32%; height: 5.2%; border-radius: 20px; }
.image-story-frame[data-story-id="story-reader-2"] .story-line-4 { left: 18%; top: 48.5%; width: 58%; height: 4.2%; }
.image-story-frame[data-story-id="story-reader-2"] .story-line-5 { left: 17.5%; top: 61.1%; width: 24%; height: 5.4%; border-radius: 20px; }
.image-story-frame[data-story-id="story-reader-2"] .story-line-6 { left: 58.5%; top: 78.5%; width: 34%; height: 6.9%; border-radius: 20px; }

.image-story-frame[data-story-id="book-reader-page-1"] .story-line-1 { left: 44.1%; top: 16.7%; width: 25.2%; height: 4.4%; border-radius: 14px; }
.image-story-frame[data-story-id="book-reader-page-1"] .story-line-2 { left: 47.6%; top: 51.3%; width: 24.7%; height: 3.8%; border-radius: 14px; }
.image-story-frame[data-story-id="book-reader-page-1"] .story-line-3 { left: 46.5%; top: 54.4%; width: 34.7%; height: 3.8%; border-radius: 14px; }
.image-story-frame[data-story-id="book-reader-page-1"] .story-line-4 { left: 45.9%; top: 57.3%; width: 30.7%; height: 3.8%; border-radius: 14px; }

.image-story-frame[data-story-id="book-reader-page-3"] .story-line-1 { left: 14.5%; top: 31.8%; width: 20.7%; height: 4.3%; border-radius: 14px; }
.image-story-frame[data-story-id="book-reader-page-3"] .story-line-2 { left: 24.2%; top: 33.9%; width: 30.7%; height: 13.2%; border-radius: 14px; }
.image-story-frame[data-story-id="book-reader-page-3"] .story-line-3 { left: 25.2%; top: 48%; width: 31.7%; height: 13.6%; border-radius: 14px; }

.image-story-frame[data-story-id="book-reader-page-4"] .story-line-1 { left: 52.3%; top: 11.4%; width: 20.2%; height: 4.6%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-4"] .story-line-2 { left: 37.5%; top: 18.9%; width: 32.9%; height: 6.3%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-4"] .story-line-3 { left: 38.1%; top: 26.8%; width: 20.1%; height: 4.8%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-4"] .story-line-4 { left: 34.6%; top: 31.7%; width: 33.9%; height: 5%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-4"] .story-line-5 { left: 37.5%; top: 55.4%; width: 29.7%; height: 6.1%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-4"] .story-line-6 { left: 44.3%; top: 61.6%; width: 23.2%; height: 4.9%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-4"] .story-line-7 { left: 44.2%; top: 71.3%; width: 35.3%; height: 4.9%; border-radius: 18px; }

.image-story-frame[data-story-id="book-reader-page-5"] .story-line-1 { left: 38%; top: 22.5%; width: 30.3%; height: 6.8%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-5"] .story-line-2 { left: 27%; top: 30.5%; width: 22%; height: 4.5%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-5"] .story-line-3 { left: 22.7%; top: 41%; width: 24.7%; height: 4.8%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-5"] .story-line-4 { left: 58.7%; top: 74.8%; width: 27.9%; height: 6.3%; border-radius: 20px; }

.image-story-frame[data-story-id="book-reader-page-6"] .story-line-1 { left: 40.7%; top: 16.4%; width: 22.3%; height: 3.9%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-6"] .story-line-2 { left: 16.6%; top: 20.5%; width: 31%; height: 11.1%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-6"] .story-line-3 { left: 48.3%; top: 26.6%; width: 34.6%; height: 10.7%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-6"] .story-line-4 { left: 13.8%; top: 31.9%; width: 35.9%; height: 10.9%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-6"] .story-line-5 { left: 50.7%; top: 38.3%; width: 36.6%; height: 11.4%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-6"] .story-line-6 { left: 13.9%; top: 44.2%; width: 35.8%; height: 11.9%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-6"] .story-line-7 { left: 49.2%; top: 50.4%; width: 33.9%; height: 12%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-6"] .story-line-8 { left: 15.2%; top: 56.6%; width: 34.5%; height: 12.5%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-6"] .story-line-9 { left: 48.6%; top: 62.9%; width: 37.7%; height: 12.1%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-6"] .story-line-10 { left: 17.2%; top: 69.1%; width: 31.6%; height: 10.9%; border-radius: 16px; }

.image-story-frame[data-story-id="book-reader-page-7"] .story-line-1 { left: 39.9%; top: 29.8%; width: 40.9%; height: 12.4%; border-radius: 24px; }

.image-story-frame[data-story-id="book-reader-page-11"] .story-line-1 { left: 38.5%; top: 17%; width: 24.4%; height: 6.1%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-11"] .story-line-2 { left: 13.1%; top: 28.2%; width: 57.1%; height: 5.9%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-11"] .story-line-3 { left: 11.9%; top: 43.9%; width: 42.9%; height: 7.5%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-11"] .story-line-4 { left: 55.7%; top: 45.9%; width: 27.7%; height: 5.4%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-11"] .story-line-5 { left: 63.5%; top: 52.6%; width: 30%; height: 5.4%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-11"] .story-line-6 { left: 37.9%; top: 67%; width: 28.4%; height: 17.6%; border-radius: 18px; }

.image-story-frame[data-story-id="book-reader-page-19"] .story-line-1 { left: 15.8%; top: 18.9%; width: 79.1%; height: 6%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-19"] .story-line-2 { left: 19.7%; top: 35.1%; width: 78.8%; height: 6%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-19"] .story-line-3 { left: 19.1%; top: 41.4%; width: 79.1%; height: 6%; border-radius: 18px; }

.image-story-frame[data-story-id="book-reader-page-22"] .story-line-1 { left: 35.6%; top: 14.5%; width: 24.6%; height: 12%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-22"] .story-line-2 { left: 36.3%; top: 27%; width: 23.3%; height: 10.7%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-22"] .story-line-3 { left: 35.6%; top: 37.5%; width: 25.5%; height: 11.3%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-22"] .story-line-4 { left: 20.2%; top: 48.6%; width: 61.5%; height: 5.2%; border-radius: 18px; }

.image-story-frame[data-story-id="book-reader-page-23"] .story-line-1 { left: 32.3%; top: 3.8%; width: 50.4%; height: 6%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-23"] .story-line-2 { left: 34%; top: 24.6%; width: 26.8%; height: 6.2%; border-radius: 20px; }
.image-story-frame[data-story-id="book-reader-page-23"] .story-line-3 { left: 16.3%; top: 42.7%; width: 41.9%; height: 6.2%; border-radius: 20px; }
.image-story-frame[data-story-id="book-reader-page-23"] .story-line-4 { left: 12.2%; top: 50.2%; width: 55.6%; height: 5.8%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-23"] .story-line-5 { left: 35.7%; top: 69.1%; width: 25.7%; height: 6.2%; border-radius: 20px; }
.image-story-frame[data-story-id="book-reader-page-23"] .story-line-6 { left: 20.9%; top: 85%; width: 31.7%; height: 4.8%; border-radius: 20px; }

.image-story-frame[data-story-id="book-reader-page-24"] .story-line-1 { left: 14%; top: 9.8%; width: 59.2%; height: 4.1%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-24"] .story-line-2 { left: 16.6%; top: 29%; width: 23.7%; height: 5.3%; border-radius: 20px; }
.image-story-frame[data-story-id="book-reader-page-24"] .story-line-3 { left: 43.1%; top: 40%; width: 31.7%; height: 5.2%; border-radius: 20px; }
.image-story-frame[data-story-id="book-reader-page-24"] .story-line-4 { left: 17%; top: 48.2%; width: 57.4%; height: 4.2%; border-radius: 18px; }
.image-story-frame[data-story-id="book-reader-page-24"] .story-line-5 { left: 15.7%; top: 59.9%; width: 25.8%; height: 5.5%; border-radius: 20px; }
.image-story-frame[data-story-id="book-reader-page-24"] .story-line-6 { left: 55.8%; top: 76.6%; width: 33.7%; height: 6.9%; border-radius: 20px; }

.image-story-frame[data-story-id="book-reader-page-25"] .story-line-1 { left: 18.2%; top: 10.2%; width: 63.6%; height: 4.2%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-25"] .story-line-2 { left: 41%; top: 20%; width: 29%; height: 5.4%; border-radius: 22px; }
.image-story-frame[data-story-id="book-reader-page-25"] .story-line-3 { left: 44%; top: 28%; width: 39%; height: 5.4%; border-radius: 22px; }
.image-story-frame[data-story-id="book-reader-page-25"] .story-line-4 { left: 45%; top: 40%; width: 23%; height: 5.4%; border-radius: 22px; }
.image-story-frame[data-story-id="book-reader-page-25"] .story-line-5 { left: 37%; top: 49%; width: 48%; height: 4.6%; border-radius: 16px; }
.image-story-frame[data-story-id="book-reader-page-25"] .story-line-6 { left: 63%; top: 64%; width: 27%; height: 8%; border-radius: 22px; }

.image-story-transcript-panel {
    display: grid;
    align-content: start;
    gap: 14px;
    padding: 18px;
}

.image-story-transcript-panel h2 {
    font-size: 1.25rem;
}

.image-story-transcript {
    display: grid;
    gap: 10px;
}

.image-story-line {
    padding: 14px;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
    cursor: pointer;
    font-weight: 850;
    line-height: 1.35;
    text-align: left;
}

.image-story-line[aria-current="true"] {
    color: #172033;
    border-color: #f3cc61;
    background: #fff4c7;
    box-shadow: inset 0 0 0 2px #f3cc61;
}

.stories-player-panel {
    display: grid;
    gap: 18px;
    min-height: 620px;
    padding: 26px;
}

.stories-heading {
    display: grid;
    gap: 6px;
    align-self: start;
}

.stories-heading h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1;
}

.story-player-shell {
    position: relative;
    display: grid;
    min-height: 430px;
    place-items: center;
    overflow: hidden;
    border-radius: 8px;
    background: #172033;
}

.story-player-shell iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
}

.story-empty-state {
    max-width: 560px;
    padding: 22px;
    color: #fff;
    font-size: 1.25rem;
    font-weight: 850;
    line-height: 1.35;
    text-align: center;
}

.story-list-panel {
    display: grid;
    align-content: start;
    gap: 14px;
    padding: 18px;
}

.story-list-panel h2 {
    font-size: 1.25rem;
}

.story-list {
    display: grid;
    gap: 10px;
}

.story-tile {
    display: grid;
    gap: 5px;
    min-height: 74px;
    padding: 12px;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
    cursor: pointer;
    text-align: left;
}

.story-tile strong {
    font-size: 1.1rem;
    line-height: 1;
}

.story-tile span {
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 750;
    line-height: 1.25;
}

.story-tile[aria-current="true"] {
    color: white;
    border-color: transparent;
    background: var(--blue);
}

.story-tile[aria-current="true"] span {
    color: #dfeaff;
}

.story-tile:disabled {
    cursor: not-allowed;
    opacity: 0.72;
}

.resources-reader-panel {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 18px;
    min-height: 680px;
    padding: 26px;
}

.resources-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.resources-toolbar h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1;
}

.pdf-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.pdf-control,
.pdf-download {
    display: inline-grid;
    min-height: 44px;
    align-items: center;
    padding: 0 14px;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
    cursor: pointer;
    font-weight: 850;
    text-decoration: none;
}

.pdf-control:hover,
.pdf-control:focus-visible,
.pdf-download:hover,
.pdf-download:focus-visible,
.resource-tile:hover,
.resource-tile:focus-visible {
    outline: 3px solid rgba(36, 107, 254, 0.32);
    outline-offset: 2px;
}

.pdf-reader {
    width: 100%;
    min-height: 560px;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    background: #172033;
}

.resource-list-panel {
    display: grid;
    align-content: start;
    gap: 14px;
    padding: 18px;
}

.resource-list-panel h2 {
    font-size: 1.25rem;
}

.resource-list {
    display: grid;
    gap: 10px;
}

.resource-tile {
    display: grid;
    gap: 5px;
    min-height: 74px;
    padding: 12px;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
    cursor: pointer;
    text-align: left;
}

.resource-tile strong {
    font-size: 1.1rem;
    line-height: 1;
}

.resource-tile span {
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 750;
    line-height: 1.25;
}

.resource-tile[aria-current="true"] {
    color: white;
    border-color: transparent;
    background: var(--blue);
}

.resource-tile[aria-current="true"] span {
    color: #dfeaff;
}

.stage {
    display: grid;
    grid-template-columns: 230px minmax(0, 1fr);
    grid-template-rows: auto 70px;
    gap: 18px;
    min-height: 620px;
    padding: 26px;
}

.letter-zone {
    display: grid;
    gap: 14px;
}

.letter-panel,
.sound-button {
    border: 0;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease;
}

.letter-panel {
    display: grid;
    place-items: center;
    min-height: 330px;
    color: white;
    background: linear-gradient(160deg, var(--blue), #123b8d);
}

.letter {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.08em;
    font-size: clamp(8rem, 14vw, 12rem);
    font-weight: 950;
    line-height: 0.9;
}

.letter-case-lower {
    font-size: 0.78em;
}

.sound-button {
    display: grid;
    place-items: center;
    min-height: 110px;
    color: #11315c;
    border: 3px solid #d9e4f4;
    background: #fff;
}

.sound {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 950;
    line-height: 1;
}

.letter-panel:hover,
.sound-button:hover,
.word-card:hover,
.letter-panel:focus-visible,
.sound-button:focus-visible,
.word-card:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
    transform: translateY(-2px);
}

.word-area {
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 14px;
}

.prompt {
    min-height: 56px;
    padding: 14px 18px;
    border-radius: 8px;
    color: white;
    background: #172033;
    font-size: 1.28rem;
    font-weight: 850;
}

.word-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.word-card {
    display: grid;
    grid-template-rows: 1fr auto;
    align-items: center;
    justify-items: center;
    min-height: 220px;
    padding: 18px;
    border: 2px solid #d5dee9;
    border-radius: 8px;
    background: #f7faff;
    cursor: pointer;
}

.word-card:nth-child(2) {
    background: #fff8e8;
}

.word-card:nth-child(3) {
    background: #eefaf4;
}

.word-card:nth-child(4) {
    background: #fff0f0;
}

.word-image {
    display: grid;
    width: 100%;
    min-height: 0;
    place-items: center;
    font-size: clamp(4.8rem, 11vw, 8.5rem);
    line-height: 1;
    filter: drop-shadow(0 14px 14px rgba(23, 32, 51, 0.12));
}

.word-image img {
    display: block;
    width: min(100%, 240px);
    max-height: 180px;
    object-fit: contain;
}

.word-label {
    color: var(--ink);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 950;
    line-height: 1;
}

.action-row {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.nav-button,
.icon-button {
    min-height: 58px;
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 850;
}

.nav-button {
    color: var(--ink);
    background: #edf1f6;
}

.icon-button {
    width: 44px;
    min-height: 44px;
    color: white;
    background: var(--coral);
}

.nav-button:hover,
.icon-button:hover,
.nav-button:focus-visible,
.icon-button:focus-visible {
    outline: 3px solid rgba(36, 107, 254, 0.32);
    outline-offset: 2px;
}

.alphabet-panel {
    padding: 18px;
}

.panel-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.panel-heading h2 {
    font-size: 1.25rem;
}

.alphabet-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.lesson-layout[data-activity="vowels"] .alphabet-grid,
.lesson-layout[data-activity="sight-words"] .alphabet-grid,
.lesson-layout[data-activity$="-family"] .alphabet-grid,
.lesson-layout[data-activity="short-a-family"] .alphabet-grid,
.lesson-layout[data-activity="short-e-family"] .alphabet-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lesson-layout[data-activity="consonant-blends"] .alphabet-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.lesson-layout[data-activity="sight-words"] .letter-zone,
.lesson-layout[data-activity$="-family"] .letter-zone,
.lesson-layout[data-activity="consonant-blends"] .letter-zone,
.lesson-layout[data-activity="short-a-family"] .letter-zone,
.lesson-layout[data-activity="short-e-family"] .letter-zone {
    grid-template-columns: 1fr;
}

.lesson-layout[data-activity="sight-words"] .letter-panel,
.lesson-layout[data-activity$="-family"] .letter-panel,
.lesson-layout[data-activity="consonant-blends"] .letter-panel,
.lesson-layout[data-activity="short-a-family"] .letter-panel,
.lesson-layout[data-activity="short-e-family"] .letter-panel {
    min-height: 100%;
}

.lesson-layout[data-activity="sight-words"] .letter,
.lesson-layout[data-activity$="-family"] .letter,
.lesson-layout[data-activity="consonant-blends"] .letter,
.lesson-layout[data-activity="short-a-family"] .letter,
.lesson-layout[data-activity="short-e-family"] .letter {
    font-size: clamp(7rem, 12vw, 10.5rem);
}

.lesson-layout[data-activity="consonant-blends"] .stage {
    grid-template-columns: 230px minmax(0, 1fr);
    height: 100%;
    min-height: 0;
    overflow: hidden;
}

.lesson-layout[data-activity="consonant-blends"] .word-area {
    min-width: 0;
    min-height: 0;
}

.lesson-layout[data-activity="consonant-blends"] .word-grid {
    grid-template-rows: repeat(2, minmax(0, 1fr));
    min-width: 0;
    min-height: 0;
}

.lesson-layout[data-activity="consonant-blends"] .letter-panel {
    min-height: 0;
    overflow: hidden;
    padding: 8px;
}

.lesson-layout[data-activity="consonant-blends"] .letter {
    max-width: 100%;
    font-size: clamp(3.4rem, 4.7vw, 5.1rem);
    white-space: nowrap;
}

.lesson-layout[data-activity="long-vowel-pairs-blend"] .stage {
    grid-template-columns: 184px minmax(0, 1fr);
}

.lesson-layout[data-activity="long-vowel-pairs-blend"] .word-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lesson-layout[data-activity="long-vowel-pairs-blend"] .alphabet-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.lesson-layout[data-activity="long-vowel-pairs-blend"] .letter-panel {
    min-width: 0;
    overflow: hidden;
}

.lesson-layout[data-activity="long-vowel-pairs-blend"] .letter {
    width: 100%;
    padding: 18px;
    font-size: clamp(3.25rem, 5vw, 4.75rem);
    overflow: hidden;
}

.pair-letter-stack {
    display: inline-block;
    max-width: 100%;
    line-height: 1;
    text-transform: none;
    white-space: nowrap;
    font-stretch: normal;
    transform: none;
}

.pair-letter-stack span {
    max-width: 100%;
}

.lesson-layout[data-activity="long-vowel-pairs-blend"] .letter-tile strong {
    font-size: 1.35rem;
    line-height: 0.92;
}

.lesson-layout[data-activity="long-vowel-pairs-blend"] .letter-tile .pair-letter-stack {
    gap: 0.08em;
}

.lesson-layout[data-activity="sight-words"] .alphabet-panel {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    max-height: calc(100vh - 150px);
    overflow: hidden;
}

.lesson-layout[data-activity="consonant-blends"] .alphabet-panel {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    height: 100%;
    min-height: 0;
    overflow: hidden;
}

.lesson-layout[data-activity="sight-words"] .alphabet-grid {
    align-content: start;
    overflow-y: auto;
    padding-right: 4px;
}

.lesson-layout[data-activity="consonant-blends"] .alphabet-grid {
    align-content: start;
    overflow-y: auto;
    padding-right: 4px;
}

.lesson-layout[data-activity="long-vowel-pairs-blend"] .alphabet-grid {
    align-content: start;
    overflow-y: auto;
    padding-right: 4px;
}

.lesson-layout[data-activity="sight-words"] .vowel-nav-heading {
    min-height: 34px;
    padding: 6px 8px;
    font-size: 0.92rem;
}

.lesson-layout[data-activity="sight-words"] .letter-tile {
    min-height: 54px;
}

.lesson-layout[data-activity="consonant-blends"] .letter-tile {
    min-height: 52px;
}

.lesson-layout[data-activity="sight-words"] .letter-tile strong {
    font-size: 1.34rem;
}

.lesson-layout[data-activity="consonant-blends"] .letter-tile strong {
    font-size: 1.22rem;
}

.vowel-nav-heading {
    display: grid;
    grid-column: 1 / -1;
    min-height: 42px;
    place-items: center;
    margin: 0;
    padding: 8px 12px;
    border-radius: 8px;
    color: #1f355c;
    background: #eaf4ff;
    font-size: 1.05rem;
    font-weight: 950;
    line-height: 1;
    text-align: center;
}

.letter-tile {
    display: grid;
    align-content: center;
    gap: 4px;
    min-height: 74px;
    border: 1px solid #d4dce7;
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
    cursor: pointer;
}

.letter-tile--case-pair {
    min-height: 74px;
}

.letter-tile strong {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.06em;
    font-size: 1.55rem;
    line-height: 0.9;
}

.tile-case-lower {
    font-size: 0.78em;
}

.letter-tile--case-pair .tile-case-lower {
    margin-top: 0.02em;
}

.letter-tile > span {
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 800;
}

.letter-tile[aria-current="true"] {
    color: white;
    border-color: transparent;
    background: var(--blue);
}

.letter-tile[aria-current="true"] > span {
    color: #dfeaff;
}

@media (max-width: 900px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .topbar-actions {
        margin-left: 0;
    }

    .progress {
        width: 100%;
        text-align: left;
    }

    .home-grid,
    .games-grid,
    .vowel-choice-grid {
        grid-template-columns: 1fr;
    }

    .activity-card {
        min-height: 280px;
    }

    .activity-mark {
        min-height: 140px;
    }

    .lesson-layout,
    .stories-view,
    .image-story-view,
    .resources-view,
    .stage {
        grid-template-columns: 1fr;
    }

    .stage {
        min-height: 0;
    }

    .stories-player-panel {
        min-height: 0;
    }

    .image-story-panel {
        padding: 18px;
    }

    .book-reader-view .image-story-panel {
        grid-template-rows: auto minmax(0, 1fr);
        place-items: center;
        min-height: 0;
        padding: 10px;
    }

    .book-reader-view .story-read-actions {
        position: static;
        transform: none;
        display: grid;
        grid-template-columns: minmax(120px, 180px) minmax(0, 1fr);
        align-items: start;
        order: 0;
        width: min(96%, 620px);
        padding: 8px;
        border: 1px solid rgba(212, 220, 231, 0.82);
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.92);
        box-shadow: 0 18px 44px rgba(23, 32, 51, 0.20);
        pointer-events: auto;
    }

    .book-reader-view .book-toolbar-left {
        grid-template-columns: 1fr;
        align-items: start;
        width: auto;
        padding: 0;
        border: 0;
        background: transparent;
        box-shadow: none;
    }

    .book-reader-view .book-toolbar-controls {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: flex-start;
        width: auto;
        min-width: 0;
        padding: 0;
        border: 0;
        background: transparent;
        box-shadow: none;
    }

    .image-story-frame[data-story-id^="book-reader-page-"] {
        width: 100%;
    }

    .resources-reader-panel {
        min-height: 0;
    }

    .resources-toolbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .story-player-shell {
        min-height: 260px;
    }

    .pdf-reader {
        min-height: 480px;
    }

    .classroom-panel {
        padding: 18px;
    }

    .classroom-scene {
        min-height: 440px;
    }

    .letter-panel {
        min-height: 220px;
    }

    .letter-zone {
        grid-template-columns: 1fr 1fr;
    }

    .sound-button {
        min-height: 220px;
    }

    .alphabet-grid {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .lesson-layout[data-activity="consonant-blends"] {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(0, 1fr) 190px;
        height: calc(100vh - 342px);
    }

    .lesson-layout[data-activity="long-vowel-pairs-blend"] {
        grid-template-columns: 1fr;
    }

    .lesson-layout[data-activity="consonant-blends"] .stage {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(0, 1fr);
        gap: 10px;
        padding: 10px;
    }

    .lesson-layout[data-activity="consonant-blends"] .letter-zone {
        display: none;
    }

    .lesson-layout[data-activity="consonant-blends"] .word-area {
        gap: 8px;
    }

    .lesson-layout[data-activity="consonant-blends"] .prompt {
        min-height: 0;
        padding: 8px 10px;
        font-size: 0.92rem;
        line-height: 1.2;
    }

    .lesson-layout[data-activity="consonant-blends"] .word-grid {
        gap: 8px;
    }

    .lesson-layout[data-activity="consonant-blends"] .word-card {
        padding: 8px;
    }

    .lesson-layout[data-activity="consonant-blends"] .word-image-photo img {
        width: min(100%, 120px);
        max-height: 76px;
    }

    .lesson-layout[data-activity="consonant-blends"] .sight-sentence {
        font-size: 1.08rem;
    }

    .lesson-layout[data-activity="consonant-blends"] .alphabet-panel {
        padding: 10px;
    }
}

@media (max-width: 560px) {
    .app-shell {
        width: min(100vw - 20px, 1180px);
        padding-top: 18px;
    }

    .stage,
    .alphabet-panel {
        padding: 14px;
    }

    .letter-zone,
    .word-grid,
    .alphabet-grid {
        grid-template-columns: 1fr 1fr;
    }

    .lesson-layout[data-activity="sight-words"] .alphabet-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        max-height: 420px;
    }

    .lesson-layout[data-activity="consonant-blends"] .alphabet-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .lesson-layout[data-activity="long-vowel-pairs-blend"] .stage {
        grid-template-columns: 1fr;
    }

    .lesson-layout[data-activity="long-vowel-pairs-blend"] .letter {
        font-size: clamp(4rem, 20vw, 6rem);
    }

    .letter-panel,
    .sound-button,
    .word-card {
        min-height: 170px;
    }

    .book-reader-view .story-read-actions {
        overflow-x: visible;
        grid-template-columns: 1fr;
        width: calc(100% - 16px);
        max-width: none;
        padding: 8px;
    }

    .book-reader-view .book-toolbar-left {
        min-width: 0;
    }

    .book-reader-view .book-toolbar-controls {
        flex-wrap: wrap;
        width: 100%;
    }

    .book-reader-view .story-read-actions .primary-action,
    .book-reader-view .story-read-actions .secondary-action {
        flex: 1 1 calc(50% - 8px);
        width: auto;
        min-width: 0;
        min-height: 38px;
        padding: 0 8px;
    }

    .book-reader-view .book-page-count,
    .book-reader-view .sentence-box-count {
        order: 0;
        flex: 1 1 calc(50% - 8px);
        width: auto;
        min-width: 0;
        min-height: 38px;
    }
}

/* Kids reading app redesign */
:root {
    --kid-ink: #21314f;
    --kid-sky: #bfe9ff;
    --kid-sun: #ffd44d;
    --kid-lime: #8bdc65;
    --kid-pink: #ff6f91;
    --kid-blue: #3e8dff;
    --kid-purple: #7b61ff;
    --kid-orange: #ff9f3d;
    --kid-card: rgba(255, 255, 255, 0.96);
    --kid-shadow: 0 18px 0 rgba(33, 49, 79, 0.10), 0 28px 50px rgba(33, 49, 79, 0.18);
}

body {
    color: var(--kid-ink);
    background:
        radial-gradient(circle at 9% 12%, rgba(255, 212, 77, 0.62) 0 56px, transparent 58px),
        radial-gradient(circle at 87% 14%, rgba(255, 111, 145, 0.26) 0 74px, transparent 76px),
        radial-gradient(circle at 14% 82%, rgba(139, 220, 101, 0.34) 0 96px, transparent 98px),
        linear-gradient(180deg, #dff5ff 0%, #fff6d7 47%, #e7ffd8 100%);
    font-family: "Trebuchet MS", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before,
body::after {
    content: "";
    position: fixed;
    z-index: -1;
    pointer-events: none;
}

body::before {
    inset: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.88) 0 18px, transparent 19px),
        radial-gradient(circle at 24% 20%, rgba(255, 255, 255, 0.88) 0 24px, transparent 25px),
        radial-gradient(circle at 29% 20%, rgba(255, 255, 255, 0.88) 0 18px, transparent 19px),
        radial-gradient(circle at 74% 31%, rgba(255, 255, 255, 0.82) 0 16px, transparent 17px),
        radial-gradient(circle at 78% 31%, rgba(255, 255, 255, 0.82) 0 23px, transparent 24px),
        radial-gradient(circle at 83% 31%, rgba(255, 255, 255, 0.82) 0 16px, transparent 17px);
}

body::after {
    right: 22px;
    bottom: 16px;
    width: 180px;
    height: 72px;
    border-radius: 999px 999px 0 0;
    background:
        radial-gradient(circle at 30% 72%, #6ecb48 0 12px, transparent 13px),
        radial-gradient(circle at 55% 64%, #7dd95a 0 18px, transparent 19px),
        radial-gradient(circle at 78% 76%, #5dbb3c 0 13px, transparent 14px);
    opacity: 0.8;
}

.app-shell {
    width: min(1240px, calc(100vw - 28px));
    padding-top: 20px;
}

.topbar {
    position: relative;
    overflow: hidden;
    min-height: 112px;
    padding: 22px 26px;
    border: 3px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background:
        radial-gradient(circle at 86% 18%, rgba(255, 212, 77, 0.92) 0 38px, transparent 40px),
        linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(238, 250, 255, 0.94));
    box-shadow: var(--kid-shadow);
}

.topbar::after {
    content: "ABC";
    position: absolute;
    right: 120px;
    bottom: 10px;
    color: rgba(62, 141, 255, 0.16);
    font-size: 4.8rem;
    font-weight: 950;
    letter-spacing: 0;
    transform: rotate(-6deg);
}

.eyebrow {
    color: #087c83;
    font-size: 0.84rem;
    font-weight: 950;
}

h1 {
    color: var(--kid-ink);
    font-size: clamp(2.6rem, 4.2vw, 4.6rem);
    letter-spacing: 0;
    text-shadow: 0 4px 0 rgba(255, 212, 77, 0.32);
}

.home-link,
.primary-action,
.secondary-action {
    border: 3px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    box-shadow: 0 6px 0 rgba(33, 49, 79, 0.12);
}

.home-link {
    min-height: 50px;
    background: #fff;
}

.primary-action {
    background: linear-gradient(180deg, #4a98ff, #236dff);
}

.secondary-action {
    background: linear-gradient(180deg, #ffffff, #f2f7ff);
}

.home-view {
    gap: 20px;
}

.home-quest-banner {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 200px;
    align-items: center;
    min-height: 220px;
    overflow: hidden;
    padding: 24px 28px;
    border: 3px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background:
        radial-gradient(circle at 68% 20%, rgba(255, 212, 77, 0.88) 0 46px, transparent 48px),
        linear-gradient(135deg, #ffffff, #d9f4ff 58%, #fff2bd);
    box-shadow: var(--kid-shadow);
}

.home-quest-banner::before {
    content: "";
    position: absolute;
    left: 26px;
    right: 210px;
    bottom: 16px;
    height: 16px;
    border-radius: 999px;
    background:
        repeating-linear-gradient(90deg, rgba(33, 49, 79, 0.13) 0 18px, transparent 18px 34px),
        linear-gradient(90deg, rgba(139, 220, 101, 0.56), rgba(255, 159, 61, 0.56));
}

.quest-kicker {
    display: inline-grid;
    width: fit-content;
    min-height: 34px;
    place-items: center;
    margin-bottom: 8px;
    padding: 0 14px;
    border-radius: 8px;
    color: #fff;
    background: #f05c73;
    font-weight: 950;
    text-transform: uppercase;
}

.home-quest-copy h2 {
    max-width: 780px;
    color: var(--kid-ink);
    font-size: clamp(2.1rem, 4.1vw, 4.2rem);
    line-height: 0.95;
    text-shadow: 0 5px 0 rgba(255, 212, 77, 0.32);
}

.quest-mascot {
    width: min(100%, 190px);
    justify-self: center;
    overflow: visible;
}

.mascot-shadow {
    fill: none;
    stroke: rgba(33, 49, 79, 0.16);
    stroke-width: 12;
    stroke-linecap: round;
}

.mascot-book {
    fill: #fff;
    stroke: var(--kid-ink);
    stroke-width: 5;
    stroke-linejoin: round;
}

.mascot-book.right {
    fill: #fff7c4;
}

.mascot-face {
    fill: #ffd44d;
    stroke: var(--kid-ink);
    stroke-width: 5;
}

.mascot-eye {
    fill: var(--kid-ink);
}

.mascot-smile {
    fill: none;
    stroke: var(--kid-ink);
    stroke-width: 5;
    stroke-linecap: round;
}

.mascot-star {
    fill: #ff8f3d;
    stroke: var(--kid-ink);
    stroke-width: 4;
    stroke-linejoin: round;
}

.mascot-pencil {
    fill: #7b61ff;
    stroke: var(--kid-ink);
    stroke-width: 4;
    stroke-linejoin: round;
}

.mascot-pencil-tip {
    fill: #ffcf8b;
    stroke: var(--kid-ink);
    stroke-width: 4;
    stroke-linejoin: round;
}

.home-grid {
    gap: 26px;
    align-items: stretch;
}

.activity-card {
    position: relative;
    overflow: hidden;
    min-height: 410px;
    padding: 22px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background: var(--kid-card);
    box-shadow: var(--kid-shadow);
}

.activity-card::before {
    content: "";
    position: absolute;
    inset: auto -40px -42px -40px;
    height: 112px;
    background:
        radial-gradient(circle at 17% 25%, rgba(255, 255, 255, 0.56) 0 15px, transparent 16px),
        radial-gradient(circle at 48% 10%, rgba(255, 255, 255, 0.42) 0 20px, transparent 21px),
        linear-gradient(90deg, rgba(139, 220, 101, 0.28), rgba(62, 141, 255, 0.18));
}

.activity-card::after {
    position: absolute;
    top: 16px;
    left: 16px;
    display: grid;
    width: 46px;
    height: 46px;
    place-items: center;
    border: 3px solid rgba(33, 49, 79, 0.14);
    border-radius: 999px;
    color: #fff;
    background: var(--kid-pink);
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.12);
    font-size: 1.35rem;
    font-weight: 950;
}

.home-grid > .activity-card:nth-child(1)::after { content: "1"; }
.home-grid > .activity-card:nth-child(2)::after { content: "2"; background: var(--kid-purple); }
.home-grid > .activity-card:nth-child(3)::after { content: "3"; background: var(--kid-orange); }
.home-grid > .activity-card:nth-child(4)::after { content: "4"; background: #23a464; }

.activity-mark {
    min-height: 210px;
    border: 4px solid rgba(33, 49, 79, 0.08);
    border-radius: 8px;
    background:
        radial-gradient(circle at 76% 24%, rgba(255, 255, 255, 0.30) 0 26px, transparent 28px),
        linear-gradient(150deg, #3e8dff, #2550b8);
    box-shadow: inset 0 -12px 0 rgba(33, 49, 79, 0.14);
}

.activity-card-vowels .activity-mark {
    background:
        radial-gradient(circle at 24% 18%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #28b77b, #0e7c91);
}

.activity-card-consonants .activity-mark {
    background:
        radial-gradient(circle at 72% 20%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #ff9f3d, #7b61ff);
}

.activity-card-letter-game .activity-mark {
    background:
        radial-gradient(circle at 28% 18%, rgba(255, 255, 255, 0.36) 0 26px, transparent 28px),
        linear-gradient(150deg, #ffcc4a, #ff6f91 54%, #3e8dff);
}

.activity-card-picture-letter-game .activity-mark {
    background:
        radial-gradient(circle at 72% 18%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #8bdc65, #3e8dff 58%, #7b61ff);
}

.activity-card-phaser-letter-game .activity-mark {
    background:
        radial-gradient(circle at 22% 20%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #7b61ff, #3e8dff 56%, #ffcc4a);
}

.long-vowel-circle-tile-mark {
    position: relative;
    overflow: hidden;
}

.long-vowel-circle-tile-mark img {
    width: 100%;
    height: 100%;
    min-height: 170px;
    object-fit: cover;
    filter: saturate(1.05);
}

.long-vowel-circle-tile-mark span {
    position: absolute;
    right: 16px;
    bottom: 16px;
    display: grid;
    min-width: 76px;
    min-height: 76px;
    place-items: center;
    border: 4px solid rgba(255, 255, 255, 0.86);
    border-radius: 999px;
    color: #172033;
    background: #fff7c4;
    box-shadow: 0 8px 0 rgba(23, 32, 51, 0.20);
    font-size: 3.5rem;
    font-weight: 950;
}

.activity-card-letter-match-game .activity-mark {
    background:
        radial-gradient(circle at 76% 20%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #ff6f91, #ffcc4a 52%, #3e8dff);
}

.activity-card-find-letter-a .activity-mark {
    background:
        radial-gradient(circle at 78% 18%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #0f8f7b, #ffcc4a 58%, #ff6f91);
}

.activity-card-connect-alphabet .activity-mark {
    background:
        radial-gradient(circle at 72% 18%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #f6c34a, #177453 62%, #245c9d);
}

.activity-card-bunny-hop .activity-mark,
.activity-card-bunny-hop-lowercase .activity-mark {
    background:
        radial-gradient(circle at 72% 18%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #d9f4ff, #2c9f6f 58%, #f6c34a);
}

.activity-card-alphabet-match-up .activity-mark {
    background:
        radial-gradient(circle at 76% 16%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #e8f7ff, #3e8dff 58%, #2c9f6f);
}

.activity-card-beginning-sounds-arrow .activity-mark {
    background:
        radial-gradient(circle at 78% 18%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #f3fbff, #f6c34a 48%, #177453);
}

.activity-card-youtube-short .activity-mark {
    background:
        radial-gradient(circle at 72% 18%, rgba(255, 255, 255, 0.34) 0 26px, transparent 28px),
        linear-gradient(150deg, #d94141, #7b61ff 58%, #245c9d);
}

.find-letter-tile-mark {
    padding: 18px;
}

.find-letter-tile-grid {
    display: grid;
    width: min(100%, 210px);
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.find-letter-tile-grid span {
    display: grid;
    aspect-ratio: 1;
    place-items: center;
    border: 3px solid rgba(255, 255, 255, 0.76);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
    font-size: clamp(1.8rem, 4vw, 3.1rem);
    font-weight: 950;
    line-height: 1;
}

.connect-alphabet-tile-mark {
    position: relative;
    overflow: hidden;
}

.connect-alphabet-tile-mark::before {
    content: "";
    position: absolute;
    left: 28%;
    right: 28%;
    top: 50%;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.76);
    transform: rotate(18deg);
}

.bunny-hop-tile-mark {
    position: relative;
    padding: 18px;
}

.bunny-hop-tile-bunny {
    position: relative;
    display: grid;
    width: min(62%, 130px);
    aspect-ratio: 1.05;
    place-items: center;
    color: var(--ink);
    font-size: clamp(3rem, 7vw, 4.6rem);
    font-weight: 900;
}

.bunny-hop-tile-bunny::before,
.bunny-hop-tile-bunny::after {
    content: "";
    position: absolute;
    top: -18%;
    width: 22%;
    height: 48%;
    border: 4px solid rgba(33, 49, 79, 0.9);
    border-radius: 999px;
    background: #ffffff;
}

.bunny-hop-tile-bunny::before {
    left: 24%;
    transform: rotate(-12deg);
}

.bunny-hop-tile-bunny::after {
    right: 24%;
    transform: rotate(12deg);
}

.bunny-hop-tile-bunny span {
    position: relative;
    z-index: 1;
    display: grid;
    width: 100%;
    height: 72%;
    place-items: center;
    border: 4px solid rgba(33, 49, 79, 0.9);
    border-radius: 48% 48% 44% 44%;
    background: #ffffff;
}

.bunny-hop-tile-slot {
    position: absolute;
    right: 18px;
    bottom: 18px;
    display: grid;
    min-width: 118px;
    min-height: 44px;
    place-items: center;
    border: 3px solid rgba(33, 49, 79, 0.18);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--ink);
    font-size: 1.05rem;
    font-weight: 900;
}

.alphabet-match-up-tile-mark {
    position: relative;
    padding: 18px;
}

.alphabet-match-up-tile-letter {
    position: absolute;
    left: 18px;
    top: 18px;
    display: grid;
    width: 72px;
    height: 58px;
    place-items: center;
    border: 4px solid rgba(33, 49, 79, 0.9);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--ink);
    font-size: 2.2rem;
    font-weight: 950;
}

.alphabet-match-up-tile-letter-small {
    left: auto;
    right: 22px;
    top: auto;
    bottom: 22px;
    width: 58px;
    height: 48px;
    font-size: 1.7rem;
}

.alphabet-match-up-tile-picture {
    display: grid;
    width: min(56%, 126px);
    aspect-ratio: 1;
    place-items: center;
    margin: 34px auto 0;
    border: 4px solid rgba(33, 49, 79, 0.14);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.9);
    font-size: clamp(3rem, 7vw, 4.8rem);
}

.beginning-sounds-arrow-tile-mark {
    position: relative;
    padding: 18px;
}

.arrow-tile-picture {
    position: absolute;
    z-index: 1;
    display: grid;
    width: 82px;
    height: 74px;
    place-items: center;
    overflow: hidden;
    border: 4px solid rgba(33, 49, 79, 0.86);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.95);
}

.arrow-tile-picture img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.arrow-tile-picture-left {
    left: 18px;
    top: 28px;
}

.arrow-tile-picture-right {
    right: 18px;
    bottom: 28px;
}

.arrow-tile-line {
    position: absolute;
    left: 82px;
    right: 82px;
    top: 50%;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.88);
    transform: rotate(20deg);
}

.arrow-tile-line::after {
    content: "";
    position: absolute;
    right: -6px;
    top: 50%;
    width: 0;
    height: 0;
    border-top: 13px solid transparent;
    border-bottom: 13px solid transparent;
    border-left: 20px solid rgba(255, 255, 255, 0.88);
    transform: translateY(-50%);
}

.beginning-sound-match-tile-mark {
    display: grid;
    gap: 8px;
    justify-items: center;
    align-content: center;
}

.beginning-sound-match-tile-mark img {
    width: 82px;
    height: 58px;
    object-fit: contain;
}

.beginning-sound-match-tile-mark span {
    display: inline-grid;
    min-width: 78px;
    min-height: 42px;
    place-items: center;
    border: 3px solid rgba(33, 49, 79, 0.14);
    border-radius: 8px;
    color: var(--kid-ink);
    background: #ffffff;
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.12);
    font-size: 1.55rem;
    font-weight: 950;
    line-height: 1;
}

.beginning-sound-match-up-tile-mark {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    align-content: center;
    justify-items: center;
}

.beginning-sound-match-up-tile-mark span {
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border: 3px solid rgba(33, 49, 79, 0.12);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.86);
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.12);
    font-size: 1.7rem;
}

.tile-alphabet-node {
    position: relative;
    display: grid;
    width: 92px;
    aspect-ratio: 1;
    place-items: center;
    border: 4px solid rgba(255, 255, 255, 0.86);
    border-radius: 8px;
    color: #172033;
    background: #fffdf7;
    box-shadow: 0 8px 0 rgba(23, 32, 51, 0.18);
    font-size: 2.9rem;
    font-weight: 950;
    line-height: 1;
    z-index: 1;
}

.tile-alphabet-node span {
    position: relative;
    z-index: 1;
}

.tile-alphabet-node-small {
    width: 76px;
    margin-left: -8px;
    transform: translate(20px, 18px);
    font-size: 2.3rem;
}

.activity-photo-mark {
    position: relative;
    min-height: 236px;
    overflow: hidden;
    align-items: stretch;
    justify-items: stretch;
    padding: 0;
    background: #fff;
    box-shadow: inset 0 -14px 0 rgba(33, 49, 79, 0.12), 0 8px 0 rgba(33, 49, 79, 0.08);
}

.activity-photo-mark::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.10), transparent 36%),
        linear-gradient(0deg, rgba(33, 49, 79, 0.42), transparent 46%);
}

.tile-photo {
    width: 100%;
    height: 100%;
    min-height: 236px;
    object-fit: cover;
    transform: scale(1.03);
}

.activity-photo-letters .tile-photo {
    object-position: 48% 48%;
}

.activity-photo-vowels .tile-photo {
    object-position: 55% 33%;
}

.activity-photo-consonants .tile-photo {
    object-position: 52% 40%;
}

.activity-photo-game .tile-photo {
    object-position: 50% 48%;
}

.activity-photo-picture-letter .tile-photo {
    object-position: 50% 42%;
}

.tile-photo-badge {
    position: absolute;
    right: 14px;
    bottom: 14px;
    z-index: 2;
    display: inline-grid;
    min-height: 42px;
    place-items: center;
    padding: 0 14px;
    border: 3px solid rgba(33, 49, 79, 0.16);
    border-radius: 8px;
    color: var(--kid-ink);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.12);
    font-size: 1.25rem;
    font-weight: 950;
    letter-spacing: 0;
}

.activity-title {
    position: relative;
    z-index: 1;
    color: var(--kid-ink);
    font-size: clamp(1.65rem, 2.8vw, 2.3rem);
    font-weight: 950;
    letter-spacing: 0;
}

.activity-copy {
    position: relative;
    z-index: 1;
    color: #41516e;
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1.35;
}

.stage,
.letter-game-stage,
.alphabet-panel,
.stories-player-panel,
.story-list-panel,
.resources-reader-panel,
.resource-list-panel,
.image-story-panel,
.image-story-transcript-panel,
.classroom-panel,
.playground-panel {
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--kid-shadow);
}

.letter-panel,
.sound-button,
.word-card,
.letter-tile,
.video-list button,
.resource-list-panel button {
    border: 3px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    box-shadow: 0 7px 0 rgba(33, 49, 79, 0.10);
}

.letter-panel {
    background: linear-gradient(160deg, #3e8dff, #244bb0);
}

.letter-panel span,
.sound-button {
    text-shadow: 0 5px 0 rgba(33, 49, 79, 0.22);
}

.word-card {
    background: #ffffff;
}

.word-card span:first-child {
    font-size: clamp(2.8rem, 5vw, 4.8rem);
}

.word-card span:last-child {
    color: var(--kid-ink);
    font-size: 1.15rem;
    font-weight: 950;
}

.lesson-layout[data-activity="phonotics"] .word-card,
.lesson-layout[data-activity="vowels"] .word-card,
.lesson-layout[data-activity="sight-words"] .word-card,
.lesson-layout[data-activity$="-family"] .word-card,
.lesson-layout[data-activity="consonant-blends"] .word-card,
.lesson-layout[data-activity="short-a-family"] .word-card,
.lesson-layout[data-activity="short-e-family"] .word-card {
    min-height: 260px;
    padding: 16px;
}

.lesson-layout[data-activity="phonotics"] .word-image,
.lesson-layout[data-activity="phonotics"] .word-card span:first-child,
.lesson-layout[data-activity="vowels"] .word-image,
.lesson-layout[data-activity="vowels"] .word-card span:first-child,
.lesson-layout[data-activity="sight-words"] .word-image,
.lesson-layout[data-activity="sight-words"] .word-card span:first-child,
.lesson-layout[data-activity$="-family"] .word-image,
.lesson-layout[data-activity$="-family"] .word-card span:first-child,
.lesson-layout[data-activity="consonant-blends"] .word-image,
.lesson-layout[data-activity="consonant-blends"] .word-card span:first-child,
.lesson-layout[data-activity="short-a-family"] .word-image,
.lesson-layout[data-activity="short-a-family"] .word-card span:first-child,
.lesson-layout[data-activity="short-e-family"] .word-image,
.lesson-layout[data-activity="short-e-family"] .word-card span:first-child {
    font-size: clamp(5.8rem, 8vw, 8rem);
}

.lesson-layout[data-activity="phonotics"] .word-image-photo img,
.lesson-layout[data-activity="vowels"] .word-image-photo img,
.lesson-layout[data-activity="sight-words"] .word-image-photo img,
.lesson-layout[data-activity$="-family"] .word-image-photo img,
.lesson-layout[data-activity="consonant-blends"] .word-image-photo img,
.lesson-layout[data-activity="short-a-family"] .word-image-photo img,
.lesson-layout[data-activity="short-e-family"] .word-image-photo img {
    width: min(100%, 280px);
    max-height: 190px;
}

.lesson-layout[data-activity="phonotics"] .word-label,
.lesson-layout[data-activity="phonotics"] .word-card span:last-child,
.lesson-layout[data-activity="vowels"] .word-label,
.lesson-layout[data-activity="vowels"] .word-card span:last-child,
.lesson-layout[data-activity="sight-words"] .word-label,
.lesson-layout[data-activity="sight-words"] .word-card span:last-child,
.lesson-layout[data-activity$="-family"] .word-label,
.lesson-layout[data-activity$="-family"] .word-card span:last-child,
.lesson-layout[data-activity="consonant-blends"] .word-label,
.lesson-layout[data-activity="consonant-blends"] .word-card span:last-child,
.lesson-layout[data-activity="short-a-family"] .word-label,
.lesson-layout[data-activity="short-a-family"] .word-card span:last-child,
.lesson-layout[data-activity="short-e-family"] .word-label,
.lesson-layout[data-activity="short-e-family"] .word-card span:last-child {
    font-size: clamp(1.75rem, 3vw, 2.35rem);
    line-height: 1.05;
}

.lesson-layout[data-activity="sight-words"] .word-card,
.lesson-layout[data-activity$="-family"] .word-card,
.lesson-layout[data-activity="consonant-blends"] .word-card,
.lesson-layout[data-activity="short-a-family"] .word-card,
.lesson-layout[data-activity="short-e-family"] .word-card {
    gap: 18px;
}

.lesson-layout[data-activity="sight-words"] .word-image-photo img,
.lesson-layout[data-activity$="-family"] .word-image-photo img,
.lesson-layout[data-activity="consonant-blends"] .word-image-photo img,
.lesson-layout[data-activity="short-a-family"] .word-image-photo img,
.lesson-layout[data-activity="short-e-family"] .word-image-photo img {
    max-height: 175px;
}

.lesson-layout[data-activity="consonant-blends"] .word-card {
    min-height: 0;
    padding: 12px;
}

.lesson-layout[data-activity="consonant-blends"] .word-image-photo img {
    width: min(100%, 210px);
    max-height: 132px;
}

.lesson-layout[data-activity="consonant-blends"] .sight-sentence {
    font-size: clamp(1.35rem, 2.3vw, 1.85rem);
    line-height: 1.08;
}

.sight-sentence {
    color: var(--kid-ink);
    font-size: 1.85rem;
    font-weight: 950;
    line-height: 1.15;
    text-align: center;
}

.sight-word-highlight {
    padding: 0 0.14em;
    border-radius: 6px;
    color: #8d2437;
    background: #ffe08a;
}

.alphabet-grid {
    gap: 12px;
}

.letter-tile {
    background: linear-gradient(180deg, #ffffff, #f4fbff);
    color: var(--kid-ink);
}

.letter-tile[aria-current="true"] {
    color: #fff;
    background: linear-gradient(180deg, #ff7d62, #e84f6f);
}

.classroom-object,
.playground-object,
.image-story-region,
.book-word-region {
    border-width: 3px;
}

.book-reader-view .book-toolbar-left,
.book-reader-view .book-toolbar-controls,
.book-toolbar-title {
    border: 3px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 8px 0 rgba(33, 49, 79, 0.10), 0 18px 34px rgba(33, 49, 79, 0.16);
}

.letter-game-view {
    display: block;
}

.phaser-letter-game-view {
    display: block;
}

.letter-match-game-view {
    display: block;
}

.short-a-scramble-game-view {
    display: block;
}

.picture-letter-game-view {
    display: block;
}

.long-vowel-circle-game-view {
    display: block;
}

.beginning-sound-match-game-view {
    display: block;
}

.find-letter-a-view {
    display: block;
}

.connect-alphabet-view {
    display: block;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.phaser-letter-game-stage {
    display: grid;
    gap: 18px;
    min-height: 680px;
    padding: 26px;
}

.phaser-letter-game-canvas {
    height: 620px;
    min-height: 620px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background: #f3fbff;
    box-shadow: 0 10px 0 rgba(33, 49, 79, 0.12), 0 24px 44px rgba(33, 49, 79, 0.16);
    overflow: hidden;
}

.phaser-letter-game-canvas canvas {
    display: block;
    touch-action: none;
    user-select: none;
}

.alphabet-bunny-hop-game-view #alphabetBunnyHopGameCanvas.phaser-letter-game-canvas {
    height: 720px;
    min-height: 720px;
}

.alphabet-match-up-game-view #alphabetMatchUpGameCanvas.phaser-letter-game-canvas {
    height: 760px;
    min-height: 760px;
}

.beginning-sounds-arrow-game-view #beginningSoundsArrowGameCanvas.phaser-letter-game-canvas {
    height: 720px;
    min-height: 720px;
}

.short-a-scramble-game-view #shortAScrambleGameCanvas.phaser-letter-game-canvas {
    height: 720px;
    min-height: 720px;
}

.short-a-scramble-active .topbar h1 {
    font-size: clamp(2.5rem, 10vw, 3.7rem);
    white-space: nowrap;
}

.letter-game-stage {
    display: grid;
    gap: 18px;
    min-height: 680px;
    padding: 26px;
}

.letter-game-heading {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 18px;
}

.letter-game-heading h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1;
}

.letter-game-score {
    display: grid;
    min-width: 148px;
    gap: 6px;
    justify-items: end;
    color: var(--kid-ink);
    font-weight: 950;
}

.letter-game-score span {
    color: #41516e;
    font-size: 1rem;
}

.letter-game-score strong {
    min-height: 44px;
    padding: 9px 14px;
    border: 3px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background: #fff7c4;
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.10);
    font-size: 1.15rem;
}

.letter-game-play {
    display: grid;
    grid-template-columns: minmax(180px, 260px) minmax(0, 1fr);
    gap: 18px;
}

.picture-letter-game-play {
    display: grid;
    grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.1fr);
    gap: 20px;
    align-items: stretch;
}

.picture-letter-word-card {
    display: grid;
    min-height: 520px;
    place-items: center;
    padding: 24px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background:
        radial-gradient(circle at 18% 14%, rgba(255, 212, 77, 0.38) 0 44px, transparent 46px),
        linear-gradient(180deg, #ffffff, #f2fbff);
    box-shadow: 0 10px 0 rgba(33, 49, 79, 0.12), 0 24px 44px rgba(33, 49, 79, 0.16);
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease;
}

.picture-letter-word-card:hover,
.picture-letter-word-card:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
    transform: translateY(-2px);
}

.picture-letter-word-card .word-image,
.picture-letter-word-card span:first-child {
    font-size: clamp(8rem, 16vw, 13rem);
}

.picture-letter-word-card .word-image-photo img {
    width: min(100%, 440px);
    max-height: 390px;
}

.picture-letter-choice-area {
    display: grid;
    align-content: stretch;
    gap: 16px;
}

.picture-letter-choice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    min-height: 0;
}

.picture-letter-choice {
    position: relative;
    display: grid;
    min-height: 230px;
    place-items: center;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    color: var(--kid-ink);
    background: linear-gradient(180deg, #ffffff, #f8fff4);
    box-shadow: 0 9px 0 rgba(33, 49, 79, 0.11), 0 20px 36px rgba(33, 49, 79, 0.12);
    cursor: pointer;
    overflow: hidden;
    transition: transform 150ms ease, box-shadow 150ms ease;
}

.picture-letter-choice:hover,
.picture-letter-choice:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
    transform: translateY(-2px);
}

.picture-letter-choice .letter-case {
    display: inline-block;
    color: var(--kid-ink);
    font-size: clamp(4.4rem, 10vw, 8rem);
    font-weight: 950;
    line-height: 0.9;
    text-shadow: 0 6px 0 rgba(255, 212, 77, 0.24);
}

.picture-letter-choice .letter-case + .letter-case {
    margin-left: 12px;
    color: #3e8dff;
}

.picture-letter-choice.is-correct {
    border-color: #23a464;
    background: #eafff2;
    animation: match-pop 700ms ease both;
}

.picture-letter-choice.is-correct::after {
    content: "✓";
    position: absolute;
    top: 12px;
    right: 12px;
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border-radius: 999px;
    color: #ffffff;
    background: #23a464;
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.14);
    font-size: 1.7rem;
    font-weight: 950;
}

.picture-letter-choice.is-wrong {
    border-color: #e84f6f;
    background: #fff0f4;
    animation: try-again-shake 430ms ease both;
}

.long-vowel-circle-stage {
    min-height: 0;
}

.long-vowel-circle-play {
    display: grid;
    gap: 18px;
}

.long-vowel-circle-phrase-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background:
        linear-gradient(90deg, rgba(62, 141, 255, 0.12), transparent 58%),
        #ffffff;
    box-shadow: 0 8px 0 rgba(33, 49, 79, 0.10);
}

.long-vowel-circle-phrase {
    color: var(--kid-ink);
    font-size: clamp(2rem, 5vw, 3.8rem);
    font-weight: 950;
    line-height: 1.04;
}

.long-vowel-circle-phrase span {
    color: #0f766e;
}

.long-vowel-circle-choice-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.long-vowel-circle-card {
    position: relative;
    display: grid;
    min-height: 250px;
    gap: 10px;
    justify-items: center;
    align-content: center;
    padding: 16px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    color: var(--kid-ink);
    background: linear-gradient(180deg, #ffffff, #f5fbff);
    box-shadow: 0 9px 0 rgba(33, 49, 79, 0.11), 0 20px 36px rgba(33, 49, 79, 0.12);
    cursor: pointer;
    overflow: hidden;
    transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

.long-vowel-circle-card:hover,
.long-vowel-circle-card:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
    transform: translateY(-2px);
}

.long-vowel-circle-card .word-image-photo img {
    width: min(100%, 210px);
    height: 142px;
    object-fit: contain;
}

.long-vowel-circle-card .word-label {
    font-size: clamp(1.45rem, 3vw, 2.15rem);
    font-weight: 950;
    line-height: 1.04;
}

.long-vowel-circle-card.is-circled {
    border-color: #17885b;
    background: #eafff2;
}

.long-vowel-circle-card.is-circled::after {
    content: "";
    position: absolute;
    inset: 12px;
    border: 7px solid #17885b;
    border-radius: 999px;
    pointer-events: none;
}

.long-vowel-circle-card.is-circled::before {
    content: "✓";
    position: absolute;
    top: 12px;
    right: 12px;
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    border-radius: 999px;
    color: #ffffff;
    background: #17885b;
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.14);
    font-size: 1.5rem;
    font-weight: 950;
}

.long-vowel-circle-card.is-wrong {
    border-color: #e84f6f;
    background: #fff0f4;
    animation: try-again-shake 430ms ease both;
}

.missing-vowel-stage {
    min-height: 0;
}

.missing-vowel-heading-actions {
    display: grid;
    gap: 10px;
    justify-items: end;
}

.missing-vowel-action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.missing-vowel-play {
    display: grid;
    gap: 18px;
}

.missing-vowel-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.missing-vowel-card {
    position: relative;
    display: grid;
    gap: 12px;
    min-height: 300px;
    padding: 16px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background: linear-gradient(180deg, #ffffff, #f5fbff);
    box-shadow: 0 9px 0 rgba(33, 49, 79, 0.11), 0 20px 36px rgba(33, 49, 79, 0.12);
}

.missing-vowel-card.is-correct {
    border-color: #17885b;
    background: #eafff2;
}

.missing-vowel-card.is-wrong {
    border-color: #e84f6f;
    background: #fff0f4;
    animation: try-again-shake 430ms ease both;
}

.missing-vowel-picture {
    display: grid;
    min-height: 138px;
    place-items: center;
}

.missing-vowel-picture .word-image-photo img {
    width: min(100%, 210px);
    height: 132px;
    object-fit: contain;
}

.missing-vowel-word {
    display: flex;
    min-height: 56px;
    align-items: center;
    justify-content: center;
    gap: 5px;
    color: var(--kid-ink);
    font-size: clamp(2.05rem, 4vw, 3.1rem);
    font-weight: 950;
    line-height: 1;
}

.missing-vowel-blank {
    display: inline-grid;
    width: 1.1em;
    height: 1.05em;
    place-items: center;
    border-bottom: 7px solid #0f766e;
    color: #0f766e;
}

.missing-vowel-card.is-correct .missing-vowel-blank {
    border-color: transparent;
}

.missing-vowel-choice-row {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 8px;
}

.missing-vowel-choice {
    display: grid;
    min-height: 52px;
    place-items: center;
    border: 3px solid rgba(33, 49, 79, 0.12);
    border-radius: 8px;
    color: var(--kid-ink);
    background: #ffffff;
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.10);
    font-size: 1.45rem;
    font-weight: 950;
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

.missing-vowel-choice:hover,
.missing-vowel-choice:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
    transform: translateY(-2px);
}

.missing-vowel-choice.is-correct {
    border-color: #17885b;
    color: #ffffff;
    background: #17885b;
}

.missing-vowel-choice.is-wrong {
    border-color: #e84f6f;
    color: #ffffff;
    background: #e84f6f;
}

.rhyming-match-stage {
    min-height: 0;
}

.rhyming-match-play {
    display: grid;
    gap: 18px;
}

.rhyming-match-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.rhyming-match-grid.is-pair-rows {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.rhyming-match-card {
    position: relative;
    display: grid;
    min-height: 224px;
    gap: 10px;
    justify-items: center;
    align-content: center;
    padding: 12px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    color: var(--kid-ink);
    background: linear-gradient(180deg, #ffffff, #f8fbff);
    box-shadow: 0 8px 0 rgba(33, 49, 79, 0.11), 0 18px 32px rgba(33, 49, 79, 0.12);
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

.rhyming-match-card:hover,
.rhyming-match-card:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
    transform: translateY(-2px);
}

.rhyming-match-picture .word-image-photo img {
    width: min(100%, 220px);
    height: 138px;
    object-fit: contain;
}

.rhyming-match-word {
    font-size: clamp(1.55rem, 3vw, 2.2rem);
    font-weight: 950;
    line-height: 1.05;
    overflow-wrap: anywhere;
    text-align: center;
}

.rhyming-match-card.is-selected {
    border-color: #2563eb;
    background: #eff6ff;
}

.rhyming-match-card.is-matched {
    border-color: #17885b;
    background: #eafff2;
    cursor: default;
}

.rhyming-match-card.is-matched::after {
    content: "✓";
    position: absolute;
    top: 10px;
    right: 10px;
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 999px;
    color: #ffffff;
    background: #17885b;
    box-shadow: 0 4px 0 rgba(33, 49, 79, 0.14);
    font-size: 1.35rem;
    font-weight: 950;
}

.rhyming-match-card.is-wrong {
    border-color: #e84f6f;
    background: #fff0f4;
    animation: try-again-shake 430ms ease both;
}

.beginning-sound-match-stage {
    min-height: 0;
}

.beginning-sound-match-play {
    display: grid;
    gap: 18px;
}

.beginning-sound-match-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.beginning-sound-match-card {
    position: relative;
    display: grid;
    gap: 12px;
    min-height: 330px;
    padding: 15px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background: linear-gradient(180deg, #ffffff, #f5fbff);
    box-shadow: 0 9px 0 rgba(33, 49, 79, 0.11), 0 20px 36px rgba(33, 49, 79, 0.12);
}

.beginning-sound-match-card.is-correct {
    border-color: #17885b;
    background: #eafff2;
}

.beginning-sound-match-card.is-correct::after {
    content: "✓";
    position: absolute;
    top: 12px;
    right: 12px;
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 999px;
    color: #ffffff;
    background: #17885b;
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.14);
    font-size: 1.45rem;
    font-weight: 950;
}

.beginning-sound-match-card.is-wrong {
    border-color: #e84f6f;
    background: #fff0f4;
    animation: try-again-shake 430ms ease both;
}

.beginning-sound-match-picture {
    display: grid;
    min-height: 150px;
    place-items: center;
    gap: 8px;
    border: 0;
    border-radius: 8px;
    color: var(--kid-ink);
    background: transparent;
    cursor: pointer;
}

.beginning-sound-match-picture:hover,
.beginning-sound-match-picture:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.24);
    outline-offset: 2px;
}

.beginning-sound-match-picture .word-image-photo img {
    width: min(100%, 210px);
    height: 152px;
    object-fit: contain;
}

.beginning-sound-choice-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 9px;
}

.beginning-sound-choice {
    display: grid;
    min-height: 58px;
    place-items: center;
    border: 3px solid rgba(33, 49, 79, 0.12);
    border-radius: 8px;
    color: var(--kid-ink);
    background: #ffffff;
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.10);
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

.beginning-sound-choice:hover,
.beginning-sound-choice:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
    transform: translateY(-2px);
}

.beginning-sound-choice .letter-case {
    color: inherit;
    font-size: clamp(1.8rem, 4vw, 2.65rem);
    font-weight: 950;
    line-height: 0.9;
}

.beginning-sound-choice .letter-case + .letter-case {
    margin-left: 5px;
}

.beginning-sound-choice.is-correct {
    border-color: #17885b;
    color: #ffffff;
    background: #17885b;
}

.beginning-sound-choice.is-wrong {
    border-color: #e84f6f;
    color: #ffffff;
    background: #e84f6f;
}

.beginning-sound-match-up-stage {
    min-height: 0;
}

.beginning-sound-match-up-play {
    display: grid;
    gap: 22px;
}

.beginning-sound-match-up-clues,
.beginning-sound-match-up-choices {
    display: grid;
    gap: 14px;
}

.beginning-sound-match-up-clues {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 16px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background: #f8fbff;
}

.beginning-sound-match-up-choices {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.beginning-sound-match-up-picture {
    position: relative;
    display: grid;
    min-height: 190px;
    place-items: center;
    padding: 12px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    color: var(--kid-ink);
    background: linear-gradient(180deg, #ffffff, #f6fbff);
    box-shadow: 0 8px 0 rgba(33, 49, 79, 0.11), 0 18px 32px rgba(33, 49, 79, 0.12);
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

.beginning-sound-match-up-picture:hover,
.beginning-sound-match-up-picture:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.26);
    outline-offset: 2px;
    transform: translateY(-2px);
}

.beginning-sound-match-up-picture .word-emoji {
    font-size: clamp(3.2rem, 8vw, 5.8rem);
}

.beginning-sound-match-up-picture .word-image-photo img {
    width: min(100%, 210px);
    height: 150px;
    object-fit: contain;
}

.beginning-sound-match-up-picture.is-selected {
    border-color: #2563eb;
    background: #eff6ff;
}

.beginning-sound-match-up-picture.is-correct {
    border-color: #17885b;
    background: #eafff2;
}

.beginning-sound-match-up-picture.is-correct::after {
    content: "✓";
    position: absolute;
    top: 10px;
    right: 10px;
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 999px;
    color: #ffffff;
    background: #17885b;
    box-shadow: 0 4px 0 rgba(33, 49, 79, 0.14);
    font-size: 1.35rem;
    font-weight: 950;
}

.beginning-sound-match-up-picture.is-wrong {
    border-color: #e84f6f;
    background: #fff0f4;
    animation: try-again-shake 430ms ease both;
}

.letter-game-listen-zone {
    display: grid;
    align-content: start;
}

.letter-game-sound-button {
    display: grid;
    width: 100%;
    min-height: 260px;
    place-items: center;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    color: #ffffff;
    background:
        radial-gradient(circle at 72% 22%, rgba(255, 255, 255, 0.28) 0 34px, transparent 36px),
        linear-gradient(160deg, #3e8dff, #244bb0);
    box-shadow: 0 10px 0 rgba(33, 49, 79, 0.14), 0 24px 44px rgba(33, 49, 79, 0.18);
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease;
}

.letter-game-sound-button:hover,
.letter-game-sound-button:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 2px;
    transform: translateY(-2px);
}

.sound-icon {
    width: min(58%, 150px);
    height: min(58%, 150px);
    overflow: visible;
    filter: drop-shadow(0 8px 0 rgba(33, 49, 79, 0.18));
}

.sound-icon path {
    fill: rgba(255, 255, 255, 0.18);
    stroke: currentColor;
    stroke-width: 8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.letter-game-card {
    position: relative;
    overflow: hidden;
    min-height: 240px;
}

.letter-game-card .word-label,
.letter-game-card span:last-child {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    line-height: 1.05;
}

.letter-game-card.is-correct {
    border-color: #23a464;
    background: #eafff2;
    animation: match-pop 700ms ease both;
}

.letter-game-card.is-correct::after {
    content: "✓";
    position: absolute;
    top: 12px;
    right: 12px;
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border-radius: 999px;
    color: #ffffff;
    background: #23a464;
    box-shadow: 0 5px 0 rgba(33, 49, 79, 0.14);
    font-size: 1.7rem;
    font-weight: 950;
}

.letter-game-card.is-wrong {
    border-color: #e84f6f;
    background: #fff0f4;
    animation: try-again-shake 430ms ease both;
}

.letter-game-finish {
    display: grid;
    min-height: 480px;
    place-items: center;
    align-content: center;
    gap: 20px;
    text-align: center;
}

.find-letter-a-stage {
    min-height: 0;
}

.find-letter-a-phrase-card {
    display: grid;
    grid-template-columns: minmax(104px, 140px) minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    padding: 16px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background:
        linear-gradient(90deg, rgba(15, 143, 123, 0.10), transparent 58%),
        #ffffff;
    box-shadow: 0 8px 0 rgba(33, 49, 79, 0.10);
}

.find-letter-a-word-picture {
    display: grid;
    min-height: 112px;
    place-items: center;
    border: 3px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background: #f3fbff;
}

.find-letter-a-word-picture .word-image {
    font-size: clamp(3rem, 8vw, 5.25rem);
}

.find-letter-a-word-picture .word-image-photo img {
    width: min(100%, 128px);
    max-height: 104px;
    object-fit: contain;
}

.find-letter-a-phrase-copy {
    display: grid;
    gap: 10px;
}

.find-letter-a-phrase {
    color: var(--kid-ink);
    font-size: clamp(1.9rem, 4vw, 3.2rem);
    font-weight: 900;
    line-height: 1.05;
}

.find-letter-a-phrase span {
    color: #0f766e;
    font-weight: 950;
}

.find-letter-a-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.find-letter-a-actions .primary-action,
.find-letter-a-actions .secondary-action {
    display: inline-grid;
    align-items: center;
    text-decoration: none;
}

.find-letter-a-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(72px, 1fr));
    gap: clamp(10px, 1.6vw, 18px);
    padding: clamp(8px, 1.4vw, 16px);
}

.find-letter-bubble {
    position: relative;
    display: grid;
    aspect-ratio: 1;
    min-height: 92px;
    place-items: center;
    border: 4px solid #202432;
    border-radius: 999px;
    color: #6c8780;
    background: #ffffff;
    box-shadow: 0 8px 0 rgba(33, 49, 79, 0.10);
    cursor: pointer;
    font-size: clamp(3rem, 7vw, 5.6rem);
    font-weight: 800;
    line-height: 1;
    transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

.find-letter-bubble:hover,
.find-letter-bubble:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 3px;
    transform: translateY(-2px);
}

.find-letter-bubble.is-found {
    border-color: #17885b;
    color: #ffffff;
    background: #17885b;
    animation: match-pop 700ms ease both;
}

.find-letter-bubble.is-found::after {
    content: "";
    position: absolute;
    inset: 13%;
    border: 5px solid rgba(255, 255, 255, 0.82);
    border-radius: inherit;
}

.find-letter-bubble.is-wrong {
    border-color: #e84f6f;
    background: #fff0f4;
    animation: try-again-shake 430ms ease both;
}

.connect-alphabet-stage {
    min-height: 0;
}

.connect-alphabet-phrase-card {
    display: grid;
    grid-template-columns: minmax(108px, 140px) minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    padding: 20px;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background:
        linear-gradient(90deg, rgba(247, 200, 75, 0.18), transparent 58%),
        #ffffff;
    box-shadow: 0 8px 0 rgba(33, 49, 79, 0.10);
}

.connect-alphabet-icon {
    display: grid;
    min-height: 112px;
    place-items: center;
}

.connect-alphabet-copy {
    display: grid;
    gap: 10px;
}

.connect-alphabet-phrase {
    color: var(--kid-ink);
    font-size: clamp(2.1rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.05;
}

.connect-alphabet-phrase span {
    color: #177453;
    font-weight: 950;
}

.connect-alphabet-board {
    position: relative;
    min-height: 620px;
    overflow: hidden;
    border: 4px solid rgba(33, 49, 79, 0.10);
    border-radius: 8px;
    background:
        linear-gradient(rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.86)),
        repeating-linear-gradient(0deg, transparent 0 68px, rgba(23, 116, 83, 0.08) 68px 70px),
        #fffaf0;
    box-shadow: inset 0 0 0 1px rgba(33, 49, 79, 0.06);
}

.connect-alphabet-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
    pointer-events: none;
}

.connect-alphabet-lines line {
    stroke: #177453;
    stroke-width: 1.6;
    stroke-linecap: round;
    filter: drop-shadow(0 2px 0 rgba(23, 32, 51, 0.12));
}

.alphabet-path-letter {
    position: absolute;
    display: grid;
    width: clamp(52px, 7vw, 74px);
    aspect-ratio: 1;
    place-items: center;
    border: 3px solid #9fb4c8;
    border-radius: 8px;
    color: #172033;
    background: #fffdf7;
    box-shadow: 0 6px 0 rgba(23, 32, 51, 0.12);
    cursor: pointer;
    font-size: clamp(1.65rem, 3.6vw, 2.7rem);
    font-weight: 950;
    line-height: 1;
    transform: translate(-50%, -50%);
    transition: box-shadow 150ms ease, background-color 150ms ease, border-color 150ms ease;
}

.alphabet-path-letter span {
    position: relative;
    z-index: 1;
}

.alphabet-path-letter:hover,
.alphabet-path-letter:focus-visible {
    outline: 4px solid rgba(36, 107, 254, 0.28);
    outline-offset: 4px;
}

.alphabet-path-letter.is-next {
    border-color: #177453;
    box-shadow: 0 0 0 5px rgba(23, 116, 83, 0.18), 0 6px 0 rgba(23, 32, 51, 0.12);
}

.alphabet-path-letter.is-connected {
    color: #ffffff;
    background: #177453;
    border-color: #177453;
    cursor: default;
}

.alphabet-path-letter.is-wrong {
    border-color: #e84f6f;
    background: #fff0f4;
}

.letter-game-final-score {
    color: var(--kid-ink);
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 950;
    line-height: 1;
    text-shadow: 0 5px 0 rgba(255, 212, 77, 0.32);
}

.victory-graphic {
    position: relative;
    display: grid;
    width: min(360px, 78vw);
    aspect-ratio: 1;
    place-items: center;
}

.victory-graphic strong {
    position: relative;
    z-index: 2;
    display: grid;
    width: 48%;
    height: 48%;
    place-items: center;
    border: 6px solid rgba(33, 49, 79, 0.12);
    border-radius: 999px;
    color: #ffffff;
    background: linear-gradient(160deg, #ffcc4a, #ff6f91);
    box-shadow: 0 14px 0 rgba(33, 49, 79, 0.12), 0 24px 46px rgba(33, 49, 79, 0.18);
    font-size: clamp(4rem, 12vw, 7rem);
    animation: victory-bounce 900ms ease-in-out infinite alternate;
}

.victory-graphic span {
    position: absolute;
    inset: 15%;
    border: 12px solid transparent;
    border-top-color: #3e8dff;
    border-right-color: #8bdc65;
    border-bottom-color: #ffcc4a;
    border-left-color: #ff6f91;
    border-radius: 999px;
    animation: victory-spin 2.8s linear infinite;
}

.victory-graphic span:nth-child(2) {
    inset: 25%;
    animation-direction: reverse;
    animation-duration: 2.1s;
}

.victory-graphic span:nth-child(3) {
    inset: 5%;
    border-width: 8px;
    opacity: 0.75;
    animation-duration: 3.6s;
}

@keyframes match-pop {
    0% { transform: scale(1); }
    45% { transform: scale(1.08) rotate(-1deg); }
    100% { transform: scale(1); }
}

@keyframes try-again-shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-10px); }
    40% { transform: translateX(9px); }
    60% { transform: translateX(-6px); }
    80% { transform: translateX(5px); }
}

@keyframes victory-spin {
    to { transform: rotate(360deg); }
}

@keyframes victory-bounce {
    to { transform: translateY(-10px) scale(1.03); }
}

@media (prefers-reduced-motion: reduce) {
    .letter-game-card.is-correct,
    .letter-game-card.is-wrong,
    .picture-letter-choice.is-correct,
    .picture-letter-choice.is-wrong,
    .long-vowel-circle-card.is-wrong,
    .beginning-sound-match-card.is-wrong,
    .beginning-sound-match-up-picture.is-wrong,
    .find-letter-bubble.is-found,
    .find-letter-bubble.is-wrong,
    .victory-graphic strong,
    .victory-graphic span {
        animation: none;
    }
}

@media (max-width: 900px) {
    .home-quest-banner {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .quest-mascot {
        width: 152px;
    }

    .letter-game-heading,
    .letter-game-play,
    .picture-letter-game-play,
    .long-vowel-circle-phrase-card,
    .find-letter-a-phrase-card,
    .connect-alphabet-phrase-card {
        grid-template-columns: 1fr;
    }

    .long-vowel-circle-phrase-card {
        display: grid;
        justify-items: start;
    }

    .long-vowel-circle-choice-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .missing-vowel-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .rhyming-match-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .rhyming-match-grid.is-pair-rows {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .beginning-sound-match-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .beginning-sound-match-up-choices {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .letter-game-heading {
        display: grid;
    }

    .letter-game-score {
        justify-items: start;
    }

    .missing-vowel-heading-actions {
        justify-items: start;
    }

    .missing-vowel-action-row {
        justify-content: flex-start;
    }

    .find-letter-a-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 560px) {
    .topbar {
        min-height: 0;
        padding: 18px;
    }

    .home-quest-banner {
        padding: 18px;
    }

    .home-quest-copy h2 {
        font-size: 2.25rem;
    }

    .activity-card {
        min-height: 320px;
    }

    .letter-game-stage {
        min-height: 0;
        padding: 16px;
    }

    .phaser-letter-game-stage {
        min-height: 0;
        padding: 16px;
    }

    .phaser-letter-game-canvas {
        height: 560px;
        min-height: 560px;
    }

    .alphabet-bunny-hop-game-view #alphabetBunnyHopGameCanvas.phaser-letter-game-canvas {
        height: 820px;
        min-height: 820px;
    }

    .alphabet-match-up-game-view #alphabetMatchUpGameCanvas.phaser-letter-game-canvas {
        height: 980px;
        min-height: 980px;
    }

    .short-a-scramble-game-view #shortAScrambleGameCanvas.phaser-letter-game-canvas {
        height: 800px;
        min-height: 800px;
    }

    .letter-game-choice-grid {
        grid-template-columns: 1fr;
    }

    .letter-game-sound-button {
        min-height: 160px;
    }

    .picture-letter-word-card {
        min-height: 240px;
    }

    .picture-letter-choice-grid {
        gap: 12px;
    }

    .missing-vowel-grid {
        grid-template-columns: 1fr;
    }

    .missing-vowel-card {
        min-height: 260px;
    }

    .rhyming-match-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .rhyming-match-grid.is-pair-rows {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .beginning-sound-match-grid {
        grid-template-columns: 1fr;
    }

    .beginning-sound-match-card {
        min-height: 280px;
    }

    .beginning-sound-match-up-clues {
        grid-template-columns: 1fr;
    }

    .beginning-sound-match-up-choices {
        grid-template-columns: 1fr;
    }

    .beginning-sound-match-up-picture {
        min-height: 170px;
    }

    .rhyming-match-card {
        min-height: 196px;
    }

    .rhyming-match-picture .word-image-photo img {
        height: 118px;
    }

    .connect-alphabet-board {
        min-height: 540px;
    }

    .alphabet-path-letter {
        width: 54px;
        font-size: 1.65rem;
    }

    .picture-letter-choice {
        min-height: 140px;
    }

    .long-vowel-circle-choice-grid {
        grid-template-columns: 1fr;
    }

    .long-vowel-circle-card {
        min-height: 210px;
    }

    .long-vowel-circle-card .word-image-photo img {
        height: 118px;
    }

    .find-letter-a-grid {
        grid-template-columns: repeat(5, minmax(48px, 1fr));
        gap: 10px;
        padding: 0;
    }

    .find-letter-bubble {
        min-height: 56px;
        border-width: 3px;
    }

    .find-letter-active .app-shell {
        width: min(100vw - 20px, 390px);
        padding-top: 10px;
        padding-bottom: 10px;
    }

    .find-letter-active .topbar {
        min-height: 0;
        margin-bottom: 10px;
        padding: 10px 12px;
    }

    .find-letter-active .topbar .eyebrow,
    .find-letter-active .topbar::after {
        display: none;
    }

    .find-letter-active h1 {
        font-size: 1.85rem;
    }

    .find-letter-active .home-link {
        min-height: 42px;
        padding: 8px 12px;
    }

    .find-letter-active .letter-game-heading {
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
        gap: 10px;
    }

    .find-letter-active .letter-game-heading .eyebrow,
    .find-letter-active .letter-game-heading h2 {
        display: none;
    }

    .find-letter-active .letter-game-score {
        min-width: 0;
    }

    .find-letter-active .letter-game-score strong {
        min-height: 36px;
        padding: 6px 10px;
    }

    .find-letter-active .find-letter-a-stage {
        gap: 10px;
        padding: 10px;
    }

    .find-letter-active .find-letter-a-phrase-card {
        grid-template-columns: 76px minmax(0, 1fr);
        gap: 10px;
        padding: 10px;
    }

    .find-letter-active .find-letter-a-word-picture {
        min-height: 72px;
    }

    .find-letter-active .find-letter-a-word-picture .word-image {
        font-size: 3rem;
    }

    .find-letter-active .find-letter-a-word-picture .word-image-photo img {
        max-height: 68px;
    }

    .find-letter-active .find-letter-a-phrase {
        font-size: 1.45rem;
    }

    .find-letter-active .prompt {
        font-size: 0.9rem;
    }

    .find-letter-active .find-letter-a-actions {
        grid-column: 1 / -1;
        justify-content: stretch;
    }

    .find-letter-active .find-letter-a-actions .primary-action,
    .find-letter-active .find-letter-a-actions .secondary-action {
        min-height: 42px;
        flex: 1 1 0;
        justify-content: center;
        padding: 8px 10px;
    }

    .find-letter-active .find-letter-a-grid {
        gap: 8px;
    }

    .find-letter-active .find-letter-bubble {
        min-height: 48px;
        font-size: 2.2rem;
        box-shadow: 0 4px 0 rgba(33, 49, 79, 0.10);
    }
}

@media (max-width: 700px) {
    .lesson-layout[data-activity="sight-words"] .stage,
    .lesson-layout[data-activity$="-family"] .stage,
    .lesson-layout[data-activity="short-a-family"] .stage,
    .lesson-layout[data-activity="short-e-family"] .stage {
        grid-template-rows: auto auto auto;
        min-height: 0;
    }

    .lesson-layout[data-activity="sight-words"] .letter-zone,
    .lesson-layout[data-activity$="-family"] .letter-zone,
    .lesson-layout[data-activity="short-a-family"] .letter-zone,
    .lesson-layout[data-activity="short-e-family"] .letter-zone {
        grid-template-columns: 1fr;
    }

    .lesson-layout[data-activity="sight-words"] .letter-panel,
    .lesson-layout[data-activity$="-family"] .letter-panel,
    .lesson-layout[data-activity="short-a-family"] .letter-panel,
    .lesson-layout[data-activity="short-e-family"] .letter-panel {
        min-height: 180px;
    }

    .lesson-layout[data-activity="sight-words"] .letter,
    .lesson-layout[data-activity$="-family"] .letter,
    .lesson-layout[data-activity="short-a-family"] .letter,
    .lesson-layout[data-activity="short-e-family"] .letter {
        font-size: clamp(6rem, 28vw, 8rem);
    }

    .lesson-layout[data-activity="sight-words"] .prompt,
    .lesson-layout[data-activity$="-family"] .prompt,
    .lesson-layout[data-activity="short-a-family"] .prompt,
    .lesson-layout[data-activity="short-e-family"] .prompt {
        min-height: 0;
        padding: 12px;
        font-size: 1rem;
        line-height: 1.25;
    }

    .lesson-layout[data-activity="sight-words"] .word-card,
    .lesson-layout[data-activity$="-family"] .word-card,
    .lesson-layout[data-activity="short-a-family"] .word-card,
    .lesson-layout[data-activity="short-e-family"] .word-card {
        min-height: 220px;
        padding: 12px;
    }

    .lesson-layout[data-activity="sight-words"] .word-image-photo img,
    .lesson-layout[data-activity$="-family"] .word-image-photo img,
    .lesson-layout[data-activity="short-a-family"] .word-image-photo img,
    .lesson-layout[data-activity="short-e-family"] .word-image-photo img {
        width: min(100%, 150px);
        max-height: 118px;
    }

    .lesson-layout[data-activity="sight-words"] .sight-sentence,
    .lesson-layout[data-activity$="-family"] .sight-sentence,
    .lesson-layout[data-activity="short-a-family"] .sight-sentence,
    .lesson-layout[data-activity="short-e-family"] .sight-sentence {
        font-size: 1.22rem;
        line-height: 1.18;
    }
}