/* ============================================================
   VOCAL COACH — song.html layout (imports audio.css for tokens)
   Mobile-first: shell uses dynamic viewport, safe-area insets,
   no overscroll bounce, no double-tap zoom on interactive UI.
   ============================================================ */

/* iOS overlay */
.audio-unlock-overlay[hidden],
.song-drawer[hidden],
.drawer-backdrop[hidden],
.settings-sheet[hidden],
.range-probe-modal[hidden] { display: none !important; }

/* Disable the iOS double-tap zoom + Android tap highlight on UI */
button, .btn, a, input, select, label.ctl-toggle, .mode-chip,
.song-item, .lyric-syl, .history-syl, .score-chip {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}
/* Stop the page itself from rubber-banding behind the fixed shell */
html, body.song-page {
    overscroll-behavior: none;
    overflow: hidden;
    height: 100%;
}

.audio-unlock-overlay {
    position: fixed;
    inset: 0;
    background: rgba(6, 6, 15, 0.92);
    backdrop-filter: blur(10px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.audio-unlock-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-glow);
    border-radius: 14px;
    padding: 32px 28px;
    max-width: 380px;
    text-align: center;
    box-shadow: 0 0 50px rgba(0, 245, 255, 0.15);
}
.audio-unlock-icon { font-size: 48px; margin-bottom: 12px; }
.audio-unlock-card h2 { font-size: 20px; margin-bottom: 8px; color: var(--neon-cyan); }
.audio-unlock-card p { color: var(--text-secondary); margin-bottom: 18px; line-height: 1.5; }
.audio-unlock-fine { font-size: 11px; color: var(--text-dim); margin-top: 14px; margin-bottom: 0; }
.btn-unlock { width: 100%; padding: 14px; font-size: 16px; }

/* Shell */
.song-shell {
    position: fixed;
    inset: 0;
    display: grid;
    grid-template-rows: var(--header-h) 1fr auto;
    background: var(--bg-void);
    overflow: hidden;
    /* Use dynamic viewport so iOS Safari URL bar doesn't clip the transport */
    height: 100vh;
    height: 100dvh;
    padding-top:    env(safe-area-inset-top);
    padding-left:   env(safe-area-inset-left);
    padding-right:  env(safe-area-inset-right);
    padding-bottom: env(safe-area-inset-bottom);
}

/* ── HEADER ── */
.song-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 0 14px;
    background: var(--glass-bg);
    border-bottom: 1px solid var(--border-glow);
    backdrop-filter: blur(var(--glass-blur));
    z-index: 10;
}
.song-back {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 6px 10px;
    border-radius: 6px;
    transition: all 0.2s;
}
.song-back:hover { background: var(--bg-elevated); color: var(--neon-cyan); }
.song-back-arrow { font-size: 22px; line-height: 1; }
.song-title-block { flex: 1; min-width: 0; }
.song-title-block h1 {
    font-size: 15px; font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.song-title-block small {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}
.song-header-controls { display: flex; gap: 8px; }
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-glow);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-family: var(--font-mono);
    transition: all 0.2s;
}
.btn-ghost:hover { background: var(--bg-elevated); color: var(--neon-cyan); border-color: var(--neon-cyan); }
.btn-sm { padding: 4px 8px; font-size: 11px; }
.btn-block { width: 100%; }
.only-mobile { display: none; }

/* ── COACH STAGE ── */
.coach-stage {
    display: grid;
    grid-template-columns: 1fr 320px;
    grid-template-rows: 1fr auto;
    grid-template-areas:
        "ribbon score"
        "lyrics score";
    gap: 8px;
    padding: 8px;
    overflow: hidden;
    min-height: 0;
}

.ribbon-zone {
    grid-area: ribbon;
    position: relative;
    background: var(--bg-panel);
    border: 1px solid var(--border-glow);
    border-radius: var(--panel-radius);
    overflow: hidden;
    min-height: 0;
}
.ribbon-zone canvas {
    width: 100%; height: 100%;
    display: block;
}

.ribbon-hud {
    position: absolute;
    top: 8px; left: 8px;
    display: flex;
    gap: 14px;
    pointer-events: none;
    background: rgba(6,6,15,0.55);
    backdrop-filter: blur(6px);
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--glass-border);
    font-family: var(--font-mono);
}
.rh-item { display: flex; flex-direction: column; align-items: flex-start; }
.rh-label { font-size: 9px; color: var(--text-dim); letter-spacing: 0.1em; text-transform: uppercase; }
.rh-value { font-size: 14px; font-weight: 700; color: var(--text-primary); }
.neon-cyan    { color: var(--neon-cyan); text-shadow: var(--glow-soft) var(--neon-cyan); }
.neon-magenta { color: var(--neon-magenta); text-shadow: var(--glow-soft) var(--neon-magenta); }
.neon-amber   { color: var(--neon-amber); }
.neon-green   { color: var(--neon-green); }
.neon-red     { color: var(--neon-red); }

.ribbon-progress {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 4px;
    background: rgba(255,255,255,0.05);
}
.ribbon-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
    box-shadow: 0 0 8px var(--neon-cyan);
    transition: width 0.05s linear;
}
.ribbon-progress-section-marks {
    position: absolute; inset: 0; pointer-events: none;
}
.section-mark {
    position: absolute;
    top: 0; bottom: 0;
    width: 1px;
    background: rgba(255,255,255,0.25);
}

/* ── LYRICS ── */
.lyrics-zone {
    grid-area: lyrics;
    background: var(--bg-panel);
    border: 1px solid var(--border-glow);
    border-radius: var(--panel-radius);
    padding: 10px 18px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    min-height: 80px;
    max-height: 25vh;
    overflow: hidden;
}
.lyrics-line {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35em;
    line-height: 1.3;
    overflow: hidden;
}
.lyrics-current { font-size: 22px; font-weight: 600; color: var(--text-primary); }
.lyrics-next    { font-size: 14px; color: var(--text-secondary); }
.lyric-syl {
    transition: color 0.15s, transform 0.15s, text-shadow 0.15s;
    white-space: nowrap;
}
.lyric-syl.past    { color: var(--text-dim); }
.lyric-syl.lit     {
    color: var(--neon-cyan);
    text-shadow: var(--glow-soft) var(--neon-cyan);
    transform: scale(1.1);
}
.lyric-syl.next    { color: var(--text-secondary); }

/* ── SCORE PANEL ── */
.score-zone {
    grid-area: score;
    background: var(--bg-panel);
    border: 1px solid var(--border-glow);
    border-radius: var(--panel-radius);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow: hidden;
    min-height: 0;
}
.score-summary {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.score-accuracy { text-align: center; padding: 8px; }
.score-acc-label {
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}
.score-acc-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--neon-green);
    font-family: var(--font-mono);
    text-shadow: var(--glow-soft) var(--neon-green);
}
.score-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}
.score-stat {
    background: var(--bg-surface);
    border: 1px solid var(--border-dim);
    border-radius: 5px;
    padding: 6px 8px;
    display: flex;
    flex-direction: column;
}
.ss-label {
    font-size: 9px; color: var(--text-dim);
    letter-spacing: 0.1em; text-transform: uppercase;
}
.ss-val {
    font-size: 13px; font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.score-chips {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    gap: 4px;
    padding: 4px;
    background: var(--bg-void);
    border-radius: 6px;
    border: 1px solid var(--border-dim);
}
.score-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 4px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-dim);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    user-select: none;
}
.score-chip:hover { transform: scale(1.05); }
.score-chip-syl  { font-weight: 700; }
.score-chip-cents { font-size: 9px; color: var(--text-dim); }

.score-chip.grade-perfect { border-color: var(--neon-green);   color: var(--neon-green); }
.score-chip.grade-good    { border-color: var(--neon-cyan);    color: var(--neon-cyan); }
.score-chip.grade-close   { border-color: var(--neon-amber);   color: var(--neon-amber); }
.score-chip.grade-off     { border-color: var(--neon-red);     color: var(--neon-red); }
.score-chip.grade-missed  {
    border-color: var(--text-dim);
    color: var(--text-dim);
    background: transparent;
    text-decoration: line-through;
}
.score-chip.grade-pending { opacity: 0.5; }
.score-chip.is-current {
    background: var(--neon-cyan);
    color: var(--bg-void);
    box-shadow: 0 0 12px var(--neon-cyan);
}

/* ── TRANSPORT BAR ── */
.transport-bar {
    background: var(--glass-bg);
    border-top: 1px solid var(--border-glow);
    backdrop-filter: blur(var(--glass-blur));
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    z-index: 10;
}
.transport-primary {
    display: flex; gap: 8px; align-items: center; flex-shrink: 0;
}
.transport-secondary {
    display: flex; gap: 14px; align-items: center; flex: 1; flex-wrap: wrap;
}
.btn-large { padding: 10px 18px; font-size: 14px; }
.btn-mic {
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-glow);
    padding: 8px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 12px;
    transition: all 0.2s;
}
.btn-mic.active {
    background: var(--neon-magenta);
    color: var(--bg-void);
    border-color: var(--neon-magenta);
    box-shadow: var(--glow-soft) var(--neon-magenta);
}
.ctl-group {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
}
.ctl-group label {
    font-size: 9px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
}
.ctl-group input[type="range"] {
    width: 100px;
    accent-color: var(--neon-cyan);
}
.ctl-val {
    min-width: 42px;
    color: var(--neon-cyan);
    font-weight: 700;
    text-align: right;
}
.ctl-octave { display: flex; gap: 4px; align-items: center; }
.ctl-toggles { display: flex; gap: 10px; }
.ctl-toggle {
    display: flex; gap: 4px; align-items: center;
    cursor: pointer;
}
.device-select {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-glow);
    border-radius: 4px;
    padding: 4px 8px;
    font-family: var(--font-mono);
    font-size: 11px;
    cursor: pointer;
    max-width: 180px;
}

/* ── DRAWERS ── */
.drawer-backdrop {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 100;
    backdrop-filter: blur(2px);
}
.song-drawer {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: 380px;
    max-width: 92vw;
    background: var(--bg-deep);
    border-left: 1px solid var(--border-glow);
    z-index: 101;
    display: flex;
    flex-direction: column;
    box-shadow: -8px 0 30px rgba(0,0,0,0.5);
    transform: translateX(0);
    animation: drawerIn 0.25s ease-out;
}
@keyframes drawerIn { from { transform: translateX(100%); } to { transform: translateX(0); } }
.drawer-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-glow);
}
.drawer-header h2 { font-size: 16px; color: var(--neon-cyan); letter-spacing: 0.1em; text-transform: uppercase; }
.drawer-section { padding: 14px 18px; border-bottom: 1px solid var(--border-dim); }
.drawer-help { font-size: 11px; color: var(--text-dim); margin-top: 8px; }
.drawer-list { flex: 1; overflow-y: auto; padding: 8px; }
.drawer-group { margin-bottom: 14px; }
.drawer-group-title {
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 4px 10px;
}
.song-item {
    display: block;
    width: 100%;
    text-align: left;
    background: var(--bg-surface);
    border: 1px solid var(--border-dim);
    border-radius: 6px;
    padding: 10px 14px;
    margin-bottom: 4px;
    cursor: pointer;
    transition: all 0.15s;
    color: var(--text-primary);
}
.song-item:hover { border-color: var(--neon-cyan); background: var(--bg-elevated); }
.song-item.is-selected { border-color: var(--neon-cyan); box-shadow: 0 0 10px rgba(0,245,255,0.3); }
.song-item-title { font-size: 13px; font-weight: 600; margin-bottom: 2px; }
.song-item-meta {
    font-size: 10px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
}

/* Settings sheet (mobile) */
.settings-sheet {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    max-height: 70vh;
    background: var(--bg-deep);
    border-top: 1px solid var(--border-glow);
    z-index: 101;
    padding: 16px;
    overflow-y: auto;
    box-shadow: 0 -8px 30px rgba(0,0,0,0.5);
    animation: sheetUp 0.25s ease-out;
}
@keyframes sheetUp { from { transform: translateY(100%); } to { transform: translateY(0); } }

/* Toast */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--neon-cyan);
    border-radius: 6px;
    padding: 10px 18px;
    font-family: var(--font-mono);
    font-size: 12px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
    z-index: 200;
}
.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Drag-over highlight */
.song-shell.is-drag-over { outline: 3px dashed var(--neon-cyan); outline-offset: -10px; }

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 1199px) {
    .coach-stage {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto auto;
        grid-template-areas:
            "ribbon"
            "lyrics"
            "score";
    }
    .score-zone { max-height: 200px; }
    .score-stats { grid-template-columns: repeat(4, 1fr); }
    .score-summary { flex-direction: row; align-items: stretch; }
    .score-accuracy { flex-shrink: 0; }
    .score-stats { flex: 1; }
}

/* ============================================================
   RESPONSIVE — PHONE
   ============================================================ */
@media (max-width: 767px) {
    :root { --header-h: 52px; }

    .only-mobile { display: inline-flex; }
    .song-back-text { display: none; }
    .song-title-block h1 { font-size: 13px; }
    .song-title-block small { font-size: 10px; }

    /* Header compression: scrollable chips, abbreviated buttons */
    .song-header { gap: 6px; padding: 0 8px; }
    .song-header-controls { gap: 4px; flex-wrap: nowrap; }
    .song-header-controls .btn { padding: 6px 8px; font-size: 11px; }
    .mode-chips { padding: 2px; }
    .mode-chip {
        padding: 5px 8px;
        font-size: 10px;
        letter-spacing: 0.05em;
        min-width: 0;
    }
    /* On the tightest screens, abbreviate the mode chip labels */
    @media (max-width: 419px) {
        .mode-chip { font-size: 0; padding: 6px 9px; }
        .mode-chip::first-letter, .mode-chip::after { font-size: 11px; }
        .mode-chip::after {
            content: attr(data-mode);
            text-transform: uppercase;
            font-size: 11px;
            letter-spacing: 0.04em;
        }
        .mode-chip[data-mode="beginner"]::after    { content: 'B'; }
        .mode-chip[data-mode="intermediate"]::after{ content: 'I'; }
        .mode-chip[data-mode="pro"]::after         { content: 'P'; }
    }

    .coach-stage {
        gap: 4px;
        padding: 4px;
    }
    .lyrics-zone { padding: 8px 12px; min-height: 64px; }
    .lyrics-current { font-size: 18px; }
    .lyrics-next    { font-size: 12px; }

    .score-zone { max-height: 120px; padding: 8px; }
    .score-summary { gap: 8px; }
    .score-accuracy { padding: 4px; }
    .score-acc-value { font-size: 24px; }
    .score-stats { grid-template-columns: repeat(2, 1fr); }
    .score-chips { display: none; }

    .ribbon-hud { font-size: 10px; gap: 8px; padding: 4px 8px; }
    .rh-value { font-size: 12px; }

    .transport-bar {
        padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
        gap: 8px;
    }
    .transport-secondary { display: none; }
    /* The settings sheet clones .transport-secondary; un-hide it inside the sheet */
    .settings-sheet .transport-secondary,
    .settings-sheet #settings-secondary {
        display: flex !important;
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
        flex: 1;
    }
    .btn-large { padding: 10px 14px; font-size: 13px; }

    /* Larger touch targets */
    button, .btn, .song-back, .song-item { min-height: 44px; }
    .btn-large { min-height: 56px; }
    input[type="range"] { height: 36px; }

    /* Drawer becomes near-full-width on phones */
    .song-drawer { width: 100vw; max-width: 100vw; }

    /* History zone: stack header actions, scroll the strip horizontally */
    .history-zone { padding: 8px; gap: 6px; }
    .history-header { flex-direction: column; align-items: stretch; gap: 6px; }
    .history-actions { flex-wrap: wrap; gap: 4px; }
    .history-actions .device-select { flex: 1; min-width: 100px; max-width: none; }
    .history-strip {
        flex-wrap: nowrap;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .history-strip::-webkit-scrollbar { display: none; }
}

/* ============================================================
   RESPONSIVE — VERY SMALL PHONE
   ============================================================ */
@media (max-width: 479px) {
    .lyrics-current { font-size: 16px; }
    .ribbon-hud .rh-item:nth-child(4) { display: none; } /* hide Beat */
    .stat-range { display: none; }
}

/* ============================================================
   RESPONSIVE — LANDSCAPE PHONE
   ============================================================ */
@media (orientation: landscape) and (max-height: 500px) {
    :root { --header-h: 40px; }
    .coach-stage {
        grid-template-columns: 2fr 1fr;
        grid-template-rows: 1fr auto;
        grid-template-areas:
            "ribbon score"
            "lyrics score";
    }
    .lyrics-zone { max-height: 60px; padding: 4px 12px; }
    .lyrics-current { font-size: 14px; }
    .lyrics-next { display: none; }
    .score-zone { max-height: none; }
    .score-stats { grid-template-columns: 1fr; }
}

/* ============================================================
   COARSE POINTER (TOUCH) — bigger targets
   ============================================================ */
@media (pointer: coarse) {
    button, .btn { min-height: 44px; }
    .btn-sm { min-height: 36px; }
    input[type="range"] { height: 38px; }
}

/* Settings sheet content (built dynamically) */
.settings-sheet .ctl-group {
    width: 100%;
    margin-bottom: 14px;
    padding: 8px;
    background: var(--bg-surface);
    border-radius: 6px;
}
.settings-sheet .ctl-group input[type="range"] { flex: 1; width: auto; }

/* ============================================================
   BOTTOM-SHEET CHROME (settings + range probe on mobile)
   ============================================================ */
.settings-sheet {
    /* override default to be a true bottom-sheet with handle */
    display: flex;
    flex-direction: column;
    border-top-left-radius: 14px;
    border-top-right-radius: 14px;
    padding-bottom: calc(16px + env(safe-area-inset-bottom));
    overscroll-behavior: contain;
}
.sheet-handle {
    width: 44px;
    height: 4px;
    border-radius: 2px;
    background: rgba(255,255,255,0.25);
    margin: 8px auto 6px;
    flex-shrink: 0;
    cursor: grab;
}
.sheet-handle:active { cursor: grabbing; }
.sheet-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 4px 16px 10px;
    border-bottom: 1px solid var(--border-dim);
    flex-shrink: 0;
}
.sheet-header h3 {
    font-size: 14px;
    color: var(--neon-cyan);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.sheet-body {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    padding-top: 12px;
}
.sheet-body .ctl-group {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
}
.sheet-body .ctl-group label:not(.ctl-toggle) {
    flex: 0 0 80px;
}
.sheet-body .ctl-toggles {
    flex-wrap: wrap;
    gap: 6px;
}
.sheet-body .ctl-toggle {
    flex: 1 1 calc(50% - 6px);
    min-height: 44px;
    padding: 6px 10px;
    background: var(--bg-elevated);
    border-radius: 6px;
    border: 1px solid var(--border-dim);
}

/* ============================================================
   COACH MODE CHIPS  (Beginner / Intermediate / Pro)
   ============================================================ */
.mode-chips {
    display: inline-flex;
    background: var(--bg-elevated);
    border: 1px solid var(--border-glow);
    border-radius: 999px;
    padding: 2px;
    gap: 2px;
}
.mode-chip {
    background: transparent;
    border: 0;
    padding: 5px 12px;
    border-radius: 999px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all .15s;
}
.mode-chip:hover { color: var(--text-primary); }
.mode-chip.is-active {
    background: var(--neon-cyan);
    color: var(--bg-void);
    box-shadow: 0 0 10px var(--neon-cyan);
}

/* ── Mode-scoped UI density ────────────────────────────── */
/* Beginner: bigger lyrics, hide pro stats */
body[data-mode="beginner"] .lyrics-current { font-size: 26px; }
body[data-mode="beginner"] #stat-vibrato,
body[data-mode="beginner"] #stat-vowel,
body[data-mode="beginner"] #stat-consonance { display: none; }
body[data-mode="beginner"] .ribbon-hud .rh-item:nth-child(3),  /* hide cents */
body[data-mode="beginner"] .ribbon-hud .rh-item:nth-child(4) { /* hide beat */
    display: none;
}

/* Intermediate: default density already, no overrides */

/* Pro: smaller HUD, all stats visible (default), tight lyric area */
body[data-mode="pro"] .lyrics-current { font-size: 18px; }
body[data-mode="pro"] .lyrics-zone    { max-height: 18vh; }
body[data-mode="pro"] .ribbon-hud { font-size: 11px; padding: 4px 8px; }

/* ── Per-syllable pitch arrow (in lyrics strip) ───────── */
.lyric-syl { position: relative; }
.lyric-arrow {
    display: inline-block;
    font-size: 0.65em;
    margin-right: 0.15em;
    color: var(--text-dim);
    transform: translateY(-2px);
}
.lyric-arrow.up    { color: var(--neon-cyan); }
.lyric-arrow.down  { color: var(--neon-magenta); }
.lyric-arrow.same  { color: var(--text-dim); }
.lyric-arrow.leap-up,
.lyric-arrow.leap-down { font-weight: 800; }
body[data-mode="pro"] .lyric-arrow { display: none; }

/* Per-syllable live grade pip (under each lit syllable) */
.lyric-syl.lit::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -6px;
    width: 6px; height: 6px;
    border-radius: 50%;
    transform: translateX(-50%);
    background: var(--neon-cyan);
    box-shadow: 0 0 6px var(--neon-cyan);
}
.lyric-syl.lit.live-perfect::after { background: var(--neon-green);   box-shadow: 0 0 8px var(--neon-green); }
.lyric-syl.lit.live-good::after    { background: var(--neon-cyan);    box-shadow: 0 0 8px var(--neon-cyan); }
.lyric-syl.lit.live-close::after   { background: var(--neon-amber);   box-shadow: 0 0 8px var(--neon-amber); }
.lyric-syl.lit.live-off::after     { background: var(--neon-red);     box-shadow: 0 0 8px var(--neon-red); }
.lyric-syl.lit.live-missed::after  { background: var(--text-dim);     box-shadow: none; }

/* ============================================================
   HISTORY / TAKE REVIEW
   ============================================================ */
.song-shell.with-history { grid-template-rows: var(--header-h) 1fr auto auto; }
.history-zone {
    background: var(--bg-deep);
    border-top: 1px solid var(--border-glow);
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 38vh;
    min-height: 200px;
    overflow: hidden;
    z-index: 9;
    position: relative;
}
.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.history-title {
    display: flex; flex-direction: column;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--neon-cyan);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.history-sub { font-size: 10px; color: var(--text-dim); text-transform: none; letter-spacing: 0; }
.history-actions { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.history-vs { color: var(--text-dim); font-size: 11px; font-family: var(--font-mono); }

#canvas-history {
    width: 100%;
    flex: 1;
    min-height: 100px;
    background: #0a0a1a;
    border: 1px solid var(--border-dim);
    border-radius: 6px;
    display: block;
}
.history-strip {
    display: flex;
    gap: 2px;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 2px;
}
.history-syl {
    flex: 0 0 auto;
    padding: 4px 6px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-dim);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    min-width: 24px;
    text-align: center;
    transition: transform .15s;
}
.history-syl:hover { transform: scale(1.08); }
.history-syl.grade-perfect { border-color: var(--neon-green);   color: var(--neon-green); }
.history-syl.grade-good    { border-color: var(--neon-cyan);    color: var(--neon-cyan); }
.history-syl.grade-close   { border-color: var(--neon-amber);   color: var(--neon-amber); }
.history-syl.grade-off     { border-color: var(--neon-red);     color: var(--neon-red); }
.history-syl.grade-missed  {
    border-color: var(--text-dim); color: var(--text-dim); text-decoration: line-through;
}

/* ============================================================
   RANGE PROBE WIZARD
   ============================================================ */
.range-probe-modal {
    position: fixed;
    inset: 0;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    pointer-events: none;
}
.range-probe-modal:not([hidden]) { pointer-events: auto; }
.rp-card {
    background: var(--bg-elevated);
    border: 1px solid var(--neon-cyan);
    border-radius: 14px;
    padding: 28px 26px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    box-shadow: 0 0 60px rgba(0, 245, 255, 0.25);
}
.rp-card h2 {
    color: var(--neon-cyan); font-size: 20px;
    margin-bottom: 8px; letter-spacing: 0.05em; text-transform: uppercase;
}
.rp-help {
    color: var(--text-secondary); font-size: 13px;
    line-height: 1.5; margin-bottom: 18px;
}
.rp-meter {
    display: flex; justify-content: space-around; align-items: baseline;
    margin: 14px 0; gap: 8px;
}
.rp-meter > div {
    flex: 1;
    background: var(--bg-surface);
    border: 1px solid var(--border-dim);
    border-radius: 6px;
    padding: 10px 6px;
    font-family: var(--font-mono);
}
.rp-meter-target { font-size: 22px; font-weight: 800; color: var(--neon-cyan); }
.rp-meter-sung   { font-size: 22px; font-weight: 800; color: var(--neon-magenta); }
.rp-meter-cents  { font-size: 16px; font-weight: 700; color: var(--text-secondary); }
.rp-progress {
    height: 8px;
    background: var(--bg-surface);
    border-radius: 4px;
    overflow: hidden;
    margin: 12px 0;
}
.rp-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
    transition: width .2s linear;
}
.rp-result { margin: 14px 0; text-align: left; }
.rp-result-row {
    display: flex; justify-content: space-between;
    padding: 6px 0; border-bottom: 1px solid var(--border-dim);
    font-family: var(--font-mono); font-size: 13px;
}
.rp-result-label { color: var(--text-dim); }
.rp-result-val   { color: var(--neon-cyan); font-weight: 700; }
.rp-actions {
    display: flex; gap: 8px; justify-content: center; margin-top: 16px;
}

/* ============================================================
   ECHO-DRILL banner
   ============================================================ */
.echo-banner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(6,6,15,0.85);
    backdrop-filter: blur(10px);
    border: 1px solid var(--neon-amber);
    border-radius: 10px;
    padding: 14px 24px;
    font-family: var(--font-mono);
    font-size: 22px;
    font-weight: 800;
    color: var(--neon-amber);
    text-shadow: 0 0 12px var(--neon-amber);
    z-index: 11;
    pointer-events: none;
    opacity: 0;
    transition: opacity .15s;
}
.echo-banner.show { opacity: 1; }
.echo-banner.listen { color: var(--neon-magenta); border-color: var(--neon-magenta); text-shadow: 0 0 12px var(--neon-magenta); }

/* ─── Tempo-flex history annotations ─── */
.history-drift {
    width: 100%;
    padding: 4px 10px;
    margin-bottom: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-dim, #aab);
    letter-spacing: 0.04em;
    border-bottom: 1px solid rgba(120, 120, 200, 0.18);
}
.history-syl {
    position: relative;
}
.history-syl-offset {
    display: inline-block;
    margin-left: 4px;
    padding: 0 4px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 9px;
    line-height: 1.4;
    background: rgba(255, 80, 220, 0.18);
    color: rgba(255, 180, 240, 0.95);
    vertical-align: middle;
}


/* ============================================================
   RANGE PROBE — close button + mobile bottom-sheet variant
   ============================================================ */
.rp-card { position: relative; }
.rp-close {
    position: absolute;
    top: 8px; right: 8px;
    width: 36px; height: 36px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-glow);
    border-radius: 18px;
    font-size: 14px;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}
.rp-close:hover { color: var(--neon-cyan); border-color: var(--neon-cyan); }

@media (max-width: 767px) {
    /* Range probe slides up as a bottom sheet on phones */
    .range-probe-modal {
        align-items: flex-end;
        padding: 0;
        animation: sheetUp 0.25s ease-out;
    }
    .range-probe-modal .rp-card {
        max-width: 100%;
        width: 100%;
        border-radius: 14px 14px 0 0;
        border-left: none;
        border-right: none;
        border-bottom: none;
        padding: 16px 18px calc(20px + env(safe-area-inset-bottom));
        box-shadow: 0 -8px 30px rgba(0,0,0,0.5);
        max-height: 85dvh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }
    .range-probe-modal .sheet-handle { margin-top: 4px; margin-bottom: 10px; }
    .rp-card h2 { font-size: 17px; }
    .rp-help { font-size: 12px; margin-bottom: 12px; }
    .rp-meter { margin: 8px 0; }
    .rp-meter-target, .rp-meter-sung { font-size: 18px; }
    .rp-meter-cents { font-size: 13px; }
    .rp-actions { flex-wrap: wrap; }
    .rp-actions .btn { flex: 1 1 30%; }
}

/* Hide the sheet-handle outside its bottom-sheet contexts */
.only-mobile.sheet-handle { display: none; }
@media (max-width: 767px) { .only-mobile.sheet-handle { display: block; } }

/* Inactive landscape phones: even tighter range probe sheet */
@media (max-width: 767px) and (orientation: landscape) and (max-height: 500px) {
    .range-probe-modal .rp-card { max-height: 92dvh; padding: 8px 14px; }
    .rp-meter { margin: 4px 0; }
    .rp-help { display: none; }
}