/* ═══════════════════════════════════════════════════════════
   LEARN WITH SONGS — Ink & Cream design system
   ═══════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;800&family=Nunito:wght@400;600;700;800&display=swap');

:root {
    --ink: #241a08;
    --ink-muted: #887364;
    --bg: #fff8f3;
    --surface: #ffffff;
    --primary-light: #ffebcf;
    --surface-container-high: #f9e5c9;
    --success-teal: #47b8a1;
    --error: #ba1a1a;
    --font-body: 'Nunito', sans-serif;
    --font-disp: 'Playfair Display', serif;
}

/* ── Page shell ────────────────────────────────────────────── */
.sng-page {
    min-height: 100vh;
    background: var(--bg);
    font-family: var(--font-body);
}

.sng-stage {
    min-height: 100vh;
}

/* ══════════════════════════════════════════════════════════
   SONG CHOOSER
   ══════════════════════════════════════════════════════════ */
.sng-chooser {
    max-width: 780px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.sng-chooser-title {
    font-family: var(--font-disp);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--ink);
    margin: 0;
    text-align: center;
}

.sng-chooser-sub {
    color: var(--ink-muted);
    font-size: 1rem;
    text-align: center;
    margin: 0;
}

.sng-chooser-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .5rem;
}

.sng-song-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    width: 100%;
}

.sng-song-card {
    background: var(--surface);
    border: 2px solid transparent;
    border-radius: 22px;
    padding: 1.4rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .6rem;
    cursor: pointer;
    font-family: var(--font-body);
    text-align: center;
    box-shadow: 0 2px 12px rgba(36, 26, 8, .06);
    transition: all .22s cubic-bezier(.34, 1.56, .64, 1);
    position: relative;
    overflow: hidden;
}

.sng-song-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--sng-color, #ffebcf);
    opacity: 0;
    transition: opacity .22s;
}

.sng-song-card:hover {
    border-color: var(--sng-color, #ffebcf);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(36, 26, 8, .1);
}

.sng-song-card:hover::before {
    opacity: .06;
}

.sng-song-card-emoji {
    font-size: 2.8rem;
    position: relative;
}

.sng-song-card-info {
    display: flex;
    flex-direction: column;
    gap: .15rem;
    position: relative;
}

.sng-song-card-info strong {
    font-size: 1rem;
    font-weight: 800;
    color: var(--ink);
}

.sng-song-card-info span {
    font-size: .8rem;
    color: var(--ink-muted);
}

.sng-level-badge {
    font-size: .68rem;
    font-weight: 800;
    border-radius: 99px;
    padding: .18rem .6rem;
    position: relative;
}

.sng-level-a2 {
    background: rgba(71, 184, 161, .1);
    color: #1a7a38;
    border: 1px solid rgba(71, 184, 161, .2);
}

.sng-level-b1 {
    background: rgba(143, 78, 0, .10);
    color: var(--ink);
    border: 1px solid rgba(143, 78, 0, .175);
}

.sng-level-b2 {
    background: rgba(255, 180, 50, .12);
    color: #a05c00;
    border: 1px solid rgba(255, 180, 50, .25);
}

/* ══════════════════════════════════════════════════════════
   PLAYER SCREEN
   ══════════════════════════════════════════════════════════ */
.sng-player-screen {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.sng-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .75rem 1.25rem;
    background: var(--surface);
    border-bottom: 1px solid rgba(36, 26, 8, .07);
    gap: 1rem;
}

.sng-back-btn {
    background: none;
    border: 1.5px solid rgba(36, 26, 8, .1);
    border-radius: 10px;
    padding: .3rem .85rem;
    font-family: var(--font-body);
    font-size: .82rem;
    font-weight: 700;
    color: var(--ink-muted);
    cursor: pointer;
    transition: all .15s;
    flex-shrink: 0;
}

.sng-back-btn:hover {
    background: rgba(36, 26, 8, .05);
    color: var(--ink);
}

.sng-header-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.sng-header-artist {
    font-size: .72rem;
    font-weight: 700;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: .05em;
}

.sng-header-title {
    font-family: var(--font-disp);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--ink);
}

.sng-header-stats {
    display: flex;
    gap: .4rem;
    flex-shrink: 0;
}

.sng-badge {
    font-size: .75rem;
    font-weight: 800;
    border-radius: 99px;
    padding: .2rem .7rem;
    font-family: var(--font-body);
}

.sng-badge--score {
    background: rgba(253, 153, 55, .15);
    border: 1px solid rgba(143, 78, 0, .15);
    color: var(--ink);
}

.sng-badge--streak {
    background: rgba(255, 235, 207, .6);
    border: 1px solid rgba(253, 153, 55, .20);
    color: #AE5600;
}

/* Progress bar */
.sng-prog-wrap {
    padding: 0 1.25rem;
    background: var(--surface);
    padding-bottom: .5rem;
}

.sng-prog-bar {
    height: 5px;
    background: rgba(36, 26, 8, .07);
    border-radius: 99px;
    overflow: hidden;
}

.sng-prog-fill {
    height: 100%;
    background: var(--primary-container, #fd9937);
    border-radius: 99px;
    transition: width .5s cubic-bezier(.4, 0, .2, 1);
    width: 0%;
}

/* Two columns */
.sng-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    flex: 1;
    overflow: hidden;
    gap: 0;
}

.sng-video-col {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    gap: .75rem;
    border-right: 1px solid rgba(36, 26, 8, .06);
    overflow-y: auto;
}

.sng-video-wrap {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 16px;
    overflow: hidden;
    background: rgba(36, 26, 8, .05);
    box-shadow: 0 4px 20px rgba(36, 26, 8, .08);
}

.sng-video-wrap iframe,
#sng-yt-frame {
    width: 100%;
    height: 100%;
    display: block;
    border: none;
}

.sng-video-hint {
    font-size: .75rem;
    color: var(--ink-muted);
    font-style: italic;
    text-align: center;
    margin: 0;
}

.sng-lyric-col {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    overflow-y: auto;
}

/* ─ Lyric display ─ */
.sng-lyric-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    gap: .5rem;
    text-align: center;
}

.sng-lyric-waiting {
    color: var(--ink-muted);
    font-size: .9rem;
    font-style: italic;
}

/* Emoji pop (like story) */
.sng-emoji-display {
    font-size: 3.5rem;
    line-height: 1;
}

@keyframes sngEmojiPop {
    0% {
        transform: scale(0.4);
        opacity: 0;
    }

    60% {
        transform: scale(1.2);
        opacity: 1;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.sng-emoji-pop {
    animation: sngEmojiPop .4s cubic-bezier(.34, 1.56, .64, 1);
}

@keyframes sngLyricIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sng-lyric-text {
    font-family: var(--font-disp);
    font-size: clamp(1rem, 2vw, 1.4rem);
    font-weight: 600;
    color: var(--ink);
    line-height: 1.5;
}

.sng-lyric-in {
    animation: sngLyricIn .3s ease;
}

/* base: highlighted (vocab) word — tooltip underline */
.sng-mark {
    background: rgba(253, 153, 55, .20);
    border-radius: 3px;
    padding: 0 2px;
    font-style: normal;
    cursor: pointer;
}

/* every word gets a span for progressive highlight */
.sng-word {
    display: inline;
    transition: color .12s, opacity .12s, transform .12s;
    opacity: .35;
}

.sng-word--active {
    opacity: 1;
    color: var(--ink);
    transform: scale(1.06);
    display: inline-block;
}

/* highlighted vocab word while active */
.sng-word.sng-mark.sng-word--active {
    background: rgba(253, 153, 55, .35);
}

.sng-line-counter {
    font-size: .72rem;
    color: var(--ink-muted);
    font-weight: 700;
}


/* ══════════════════════════════════════════════════════════
   CHALLENGE CARD
   ══════════════════════════════════════════════════════════ */
.sng-challenge-display {
    flex: 1;
}

@keyframes sngCardIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sng-challenge-card {
    background: var(--surface);
    border: 1.5px solid rgba(143, 78, 0, .15);
    border-radius: 20px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
    box-shadow: 0 4px 20px rgba(36, 26, 8, .06);
}

.sng-card-in {
    animation: sngCardIn .3s ease;
}

.sng-ch-icon {
    font-size: 1.6rem;
}

.sng-ch-label {
    font-size: .7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--ink-muted);
}

.sng-ch-blank {
    font-size: .95rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.6;
}

.sng-blank-slot {
    font-family: var(--font-disp);
    background: rgba(143, 78, 0, .10);
    border-bottom: 2.5px solid var(--primary-light);
    padding: 0 6px;
    border-radius: 4px 4px 0 0;
}

/* ─ Options (like /wild emoji buttons) ─ */
.sng-ch-options {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
}

.sng-opt {
    display: flex;
    align-items: center;
    gap: .4rem;
    background: white;
    border: 1.5px solid rgba(36, 26, 8, .09);
    border-radius: 14px;
    padding: .5rem .9rem;
    font-family: var(--font-body);
    font-size: .88rem;
    font-weight: 700;
    color: var(--ink);
    cursor: pointer;
    transition: all .2s cubic-bezier(.34, 1.56, .64, 1);
}

.sng-opt:hover:not(:disabled) {
    border-color: rgba(143, 78, 0, .25);
    background: rgba(143, 78, 0, .05);
    transform: translateY(-2px);
}

.sng-opt:disabled {
    cursor: not-allowed;
}

.sng-opt-emoji {
    font-size: 1.2rem;
}

.sng-opt-word {
    font-size: .88rem;
}

.sng-opt--correct {
    border-color: rgba(71, 184, 161, .4) !important;
    background: rgba(71, 184, 161, .07) !important;
    color: var(--success-teal) !important;
}

.sng-opt--wrong {
    border-color: rgba(186, 26, 26, .35) !important;
    background: rgba(186, 26, 26, .05) !important;
    color: var(--error) !important;
    animation: sngShake .35s ease;
}

@keyframes sngShake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

/* ─ Feedback ─ */
.sng-ch-feedback {
    font-size: .83rem;
    font-weight: 700;
    min-height: 1rem;
}

.sng-fb--ok {
    color: var(--success-teal);
}

.sng-fb--err {
    color: var(--error);
}

/* ─ Grammar rule / tip ─ */
.sng-grammar-rule {
    font-size: .85rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.55;
}

.sng-tip-strip {
    background: rgba(143, 78, 0, .05);
    border-left: 3px solid var(--primary-light);
    border-radius: 0 10px 10px 0;
    padding: .5rem .75rem;
    font-size: .8rem;
    color: var(--ink-muted);
}

.sng-continue-btn {
    align-self: flex-start;
    background: var(--primary, #8f4e00);
    color: #fff;
    border: none;
    border-radius: 12px;
    padding: .55rem 1.4rem;
    font-family: var(--font-body);
    font-size: .9rem;
    font-weight: 800;
    cursor: pointer;
    transition: transform .18s;
}

.sng-continue-btn:hover {
    transform: translateY(-2px);
}

/* ─ Word Order ─ */
.sng-wo-built {
    min-height: 2.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: .3rem;
    padding: .5rem .75rem;
    background: rgba(36, 26, 8, .03);
    border: 1.5px dashed rgba(36, 26, 8, .11);
    border-radius: 12px;
    align-items: center;
}

.sng-wo-placeholder {
    color: var(--ink-muted);
    font-size: .82rem;
    font-style: italic;
}

.sng-wo-tag {
    background: var(--ink);
    color: var(--bg);
    border-radius: 8px;
    padding: .2rem .6rem;
    font-size: .85rem;
    font-weight: 700;
    animation: sngTagIn .2s ease;
}

@keyframes sngTagIn {
    from {
        opacity: 0;
        transform: scale(.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.sng-built--ok {
    border-color: rgba(71, 184, 161, .4) !important;
    background: rgba(71, 184, 161, .05) !important;
}

.sng-built--err {
    border-color: rgba(186, 26, 26, .35) !important;
    animation: sngShake .35s ease;
}

.sng-wo-bank {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
}

.sng-wo-chip {
    background: var(--surface);
    border: 1.5px solid rgba(36, 26, 8, .09);
    border-radius: 10px;
    padding: .28rem .7rem;
    font-family: var(--font-body);
    font-size: .85rem;
    font-weight: 700;
    color: var(--ink);
    cursor: pointer;
    transition: all .18s cubic-bezier(.34, 1.56, .64, 1);
}

.sng-wo-chip:hover:not(:disabled) {
    border-color: rgba(143, 78, 0, .25);
    transform: translateY(-2px);
}

.sng-chip--used {
    opacity: .3;
    cursor: not-allowed !important;
    transform: none !important;
}

.sng-wo-actions {
    display: flex;
    gap: .5rem;
}

.sng-ghost-btn,
.sng-skip-btn {
    background: none;
    border: 1px solid rgba(36, 26, 8, .1);
    border-radius: 10px;
    padding: .3rem .8rem;
    font-family: var(--font-body);
    font-size: .78rem;
    font-weight: 700;
    color: var(--ink-muted);
    cursor: pointer;
    transition: background .15s;
}

.sng-ghost-btn:hover,
.sng-skip-btn:hover {
    background: rgba(36, 26, 8, .05);
    color: var(--ink);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 700px) {
    .sng-content {
        grid-template-columns: 1fr;
        overflow-y: auto;
    }

    .sng-video-col {
        border-right: none;
        border-bottom: 1px solid rgba(36, 26, 8, .06);
    }

    .sng-player-screen {
        height: auto;
    }
}

/* ══════════════════════════════════════════════════════════
   VOCABULARY TOOLTIP
   ══════════════════════════════════════════════════════════ */
.sng-mark {
    cursor: pointer;
    position: relative;
}

.sng-tooltip {
    position: fixed;
    transform: translateX(-50%) translateY(-100%);
    background: var(--ink);
    color: #fff;
    border-radius: 10px;
    padding: .4rem .75rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    pointer-events: none;
    z-index: 9999;
    box-shadow: 0 6px 24px rgba(36, 26, 8, .25);
    white-space: nowrap;
    font-family: var(--font-body);
}

.sng-tooltip::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid var(--ink);
}

.sng-tip-es {
    font-size: .82rem;
    font-weight: 700;
}

.sng-tip-pos {
    font-size: .68rem;
    font-weight: 800;
    background: rgba(255, 255, 255, .15);
    border-radius: 6px;
    padding: .1rem .4rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}

/* ══════════════════════════════════════════════════════════
   REVIEW SCREEN
   ══════════════════════════════════════════════════════════ */
.sng-review {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.sng-review-top {
    padding: 3rem 2rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .75rem;
    color: #fff;
    text-align: center;
}

.sng-review--gold {
    background: #c9960c;
}

.sng-review--silver {
    background: #5a6e97;
}

.sng-review--bronze {
    background: #8b4513;
}

.sng-review-emoji {
    font-size: 3.5rem;
    line-height: 1;
}

.sng-review-title {
    font-family: var(--font-disp);
    font-size: 2rem;
    font-weight: 800;
    margin: 0;
    color: inherit;
}

.sng-review-song {
    font-size: .9rem;
    font-weight: 700;
    opacity: .85;
    margin: 0;
}

.sng-review-stats {
    display: flex;
    gap: 2rem;
    margin-top: .5rem;
}

.sng-review-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .15rem;
}

.sng-review-stat-val {
    font-size: 1.5rem;
    font-weight: 800;
}

.sng-review-stat-lbl {
    font-size: .72rem;
    font-weight: 700;
    opacity: .75;
    text-transform: uppercase;
    letter-spacing: .05em;
}

/* Review body */
.sng-review-body {
    flex: 1;
    background: var(--bg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.sng-review-vocab-title {
    font-family: var(--font-disp);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--ink);
    margin: 0;
    align-self: flex-start;
}

.sng-vocab-grid {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    width: 100%;
}

.sng-vocab-chip {
    display: flex;
    align-items: center;
    gap: .4rem;
    background: var(--surface);
    border: 1.5px solid rgba(143, 78, 0, .15);
    border-radius: 12px;
    padding: .4rem .85rem;
    font-family: var(--font-body);
}

.sng-vocab-en {
    font-size: .88rem;
    font-weight: 800;
    color: var(--ink);
}

.sng-vocab-arrow {
    font-size: .75rem;
    color: var(--ink-muted);
}

.sng-vocab-es {
    font-size: .82rem;
    font-weight: 600;
    color: var(--ink-muted);
}

.sng-vocab-tag {
    font-size: .62rem;
    font-weight: 800;
    background: rgba(143, 78, 0, .10);
    border-radius: 6px;
    padding: .1rem .4rem;
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: .04em;
}

.sng-review-actions {
    display: flex;
    gap: .75rem;
    align-self: center;
}

/* ══════════════════════════════════════════════════════════
   WATCH & LEARN — video-specific overrides
   ══════════════════════════════════════════════════════════ */

/* Video cards: wider to accommodate description */
.sng-video-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.sng-video-grid .sng-song-card {
    flex-direction: row;
    align-items: flex-start;
    gap: 1rem;
    text-align: left;
    padding: 1.2rem;
}

.sng-video-grid .sng-song-card-emoji {
    font-size: 2.2rem;
    flex-shrink: 0;
}

.sng-video-grid .sng-song-card-info {
    flex: 1;
}

.sng-card-desc {
    display: block;
    font-size: .72rem;
    font-weight: 400;
    color: var(--ink-muted);
    font-style: normal;
    line-height: 1.4;
    margin-top: .25rem;
}

/* Transcript label */
.sng-trans-label {
    font-size: .7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--ink-muted);
    padding: 0 .25rem;
}

/* Comprehension question */
.sng-ch-question {
    font-family: var(--font-disp);
    font-size: 1rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.45;
}

/* Comprehension options: full-width buttons */
.sng-comp-opts {
    flex-direction: column !important;
    gap: .4rem !important;
}

.sng-comp-opt {
    width: 100%;
    justify-content: flex-start !important;
    padding: .6rem 1rem !important;
    border-radius: 12px !important;
}

.sng-comp-opt .sng-opt-word {
    font-size: .9rem !important;
}

/* ── Comprehension subtype accents ─────────────────────── */
.sng-ch-identify {
    border-left: 4px solid #33c9b0;
    /* teal — identification */
}

.sng-ch-purpose {
    border-left: 4px solid #8b5cf6;
    /* purple — purpose/function */
}

.sng-ch-identify .sng-ch-label {
    color: #14897a;
}

.sng-ch-purpose .sng-ch-label {
    color: #7c3aed;
}