/* Signwave, in Aloud's visual language: chalk and ink, one long sound wave
   behind the page, and colour that says who is playing. Brass is your left
   hand, mint is your right. The stage is the "listening room": always the
   deepest surface on the page. */

@font-face { font-family: Newsreader; font-weight: 400; font-display: swap; src: url(fonts/newsreader-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: Newsreader; font-weight: 500; font-display: swap; src: url(fonts/newsreader-latin-500-normal.woff2) format('woff2'); }
@font-face { font-family: Newsreader; font-style: italic; font-weight: 400; font-display: swap; src: url(fonts/newsreader-latin-400-italic.woff2) format('woff2'); }
@font-face { font-family: Figtree; font-weight: 400; font-display: swap; src: url(fonts/figtree-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: Figtree; font-weight: 500; font-display: swap; src: url(fonts/figtree-latin-500-normal.woff2) format('woff2'); }
@font-face { font-family: Figtree; font-weight: 600; font-display: swap; src: url(fonts/figtree-latin-600-normal.woff2) format('woff2'); }
@font-face { font-family: Figtree; font-weight: 700; font-display: swap; src: url(fonts/figtree-latin-700-normal.woff2) format('woff2'); }

:root {
  --chalk: #efefea; --chalk-raised: #f7f7f4; --chalk-sunk: #e6e6e0; --chalk-line: #d8d8d1; --chalk-line-strong: #c2c2b9;
  --ink: #1b2430; --ink-soft: #4a5563; --ink-faint: #5e6672; --ink-ghost: #a3aab4; --ink-hover: #0f1620;
  --night: #10141f; --night-raised: #182033; --night-line: #27324a; --night-text: #eceef4; --night-soft: #a8b1c6; --night-faint: #6d7794;
  --brass: #d9a441; --brass-deep: #80601c; --brass-wash: #f6ecd6;   /* deep tones darker than Aloud's so small labels pass AA */
  --mint: #3fb9a0; --mint-deep: #1d6e5e; --mint-wash: #dcf1ec;
  --trouble: #c25a4a;
  --font-serif: Newsreader, Georgia, serif; --font-sans: Figtree, -apple-system, "Segoe UI", Roboto, sans-serif;
  --text-xs: .75rem; --text-sm: .8125rem; --text-base: .9375rem; --text-md: 1.0625rem; --text-lg: 1.25rem; --text-xl: 1.5rem; --text-2xl: 1.875rem;
  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem; --space-5: 1.5rem; --space-6: 2rem; --space-7: 2.5rem; --space-8: 3.5rem; --space-9: 5rem; --space-10: 7rem;
  --radius-sm: 4px; --radius-md: 8px; --radius-lg: 14px; --radius-xl: 22px; --radius-full: 999px;
  --shadow-lg: 0 12px 32px rgba(27,36,48,.11), 0 2px 6px rgba(27,36,48,.05);
  --shadow-night: 0 18px 50px rgba(0,0,0,.45);
  --ease-out: cubic-bezier(.22,.61,.36,1); --ease-spring: cubic-bezier(.34,1.3,.64,1);
  --dur-fast: 120ms; --dur: 220ms; --dur-slow: 420ms;
  --focus-ring: 0 0 0 2px var(--chalk), 0 0 0 4px var(--ink);
  --L: var(--brass); --R: var(--mint); --L-text: var(--brass-deep); --R-text: var(--mint-deep);
}
@media (prefers-color-scheme: dark) {
  :root {
    --chalk: #171a21; --chalk-raised: #1e222b; --chalk-sunk: #12151b; --chalk-line: #2a2f3a; --chalk-line-strong: #3b4251;
    --ink: #e8eaef; --ink-soft: #aeb5c2; --ink-faint: #848c9c; --ink-ghost: #5c6474; --ink-hover: #fff;
    --brass: #e0ad4d; --brass-deep: #eec278; --brass-wash: #2f2717;
    --mint: #4fcfb4; --mint-deep: #7fe3cd; --mint-wash: #12302b;
    --trouble: #e0796a;
    --shadow-lg: 0 14px 40px rgba(0,0,0,.55), 0 2px 8px rgba(0,0,0,.35);
    color-scheme: dark;
  }
}
@media (prefers-reduced-motion: reduce) { :root { --dur-fast: .01ms; --dur: .01ms; --dur-slow: .01ms; } html { scroll-behavior: auto !important; } }

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; overflow-x: clip; background: var(--chalk); color: var(--ink); font: var(--text-base)/1.55 var(--font-sans); -webkit-font-smoothing: antialiased; }
h1, h2, h3 { margin: 0; font-family: var(--font-serif); font-weight: 500; line-height: 1.15; letter-spacing: -.02em; }
p { margin: 0; }
button, select, input { font: inherit; color: inherit; margin: 0; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
:focus { outline: none; }
:focus-visible { box-shadow: var(--focus-ring); border-radius: var(--radius-sm); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* --- Buttons (Aloud) ----------------------------------------------------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); padding: .6rem 1.05rem; border-radius: var(--radius-md); font-size: var(--text-sm); font-weight: 600; letter-spacing: -.01em; border: 1px solid transparent; background: var(--chalk-raised); color: var(--ink); transition: background var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), transform var(--dur-fast) var(--ease-out); white-space: nowrap; }
.btn:hover { background: var(--chalk-sunk); }
.btn:active { transform: translateY(1px); }
.btn svg { width: 1.05em; height: 1.05em; flex: none; }
.btn-primary { background: var(--ink); color: var(--chalk-raised); }
.btn-primary:hover { background: var(--ink-hover); }
.btn-outline { background: transparent; border-color: var(--chalk-line-strong); }
.btn-outline:hover { background: var(--chalk-raised); border-color: var(--ink-faint); }
.btn-ghost { background: transparent; color: var(--ink-soft); }
.btn-ghost:hover { background: var(--chalk-sunk); color: var(--ink); }
.btn-lg { padding: .8rem 1.5rem; font-size: var(--text-base); border-radius: var(--radius-lg); }
.btn-sm { padding: .35rem .7rem; font-size: var(--text-xs); }
.btn[aria-pressed="true"].rec { color: var(--trouble); border-color: var(--trouble); }

/* --- The wave behind the page ------------------------------------------ */
.wave-backdrop { position: fixed; inset: 0; z-index: 0; pointer-events: none; color: var(--ink); --wave-played: var(--brass); --wave-ahead-alpha: .075; --wave-played-alpha: .26; }
@media (prefers-color-scheme: dark) { .wave-backdrop { --wave-ahead-alpha: .1; --wave-played-alpha: .22; } }
.wave-backdrop canvas { display: block; width: 100%; height: 100%; }
body > :not(.wave-backdrop):not(dialog) { position: relative; z-index: 1; }

/* --- Nav ------------------------------------------------------------------ */
.nav { position: absolute; inset: 0 0 auto; z-index: 2; display: flex; align-items: center; justify-content: space-between; padding: var(--space-5) clamp(var(--space-4), 5vw, var(--space-8)); }
.brand { display: inline-flex; align-items: center; gap: var(--space-2); font-family: var(--font-serif); font-size: var(--text-lg); color: var(--ink); text-decoration: none; }
.brand svg { width: 22px; height: 22px; color: var(--ink-soft); }
.nav nav { display: flex; gap: var(--space-1); }
.nav a.btn { text-decoration: none; }

/* --- Screens -------------------------------------------------------------- */
.screen { grid-template-columns: minmax(0, 1fr); justify-items: center; min-height: 100vh; min-height: 100svh; display: grid; place-items: center; padding: var(--space-10) var(--space-5); text-align: center; }
.screen-inner { display: flex; flex-direction: column; align-items: center; width: min(100%, 46rem); }
.screen-title { font-size: clamp(2.1rem, 5.2vw, 3.6rem); line-height: 1.08; max-width: 18ch; text-wrap: balance; }
.screen-lede { margin-top: var(--space-5); max-width: 36ch; font-family: var(--font-serif); font-size: clamp(1.15rem, 2vw, 1.4rem); line-height: 1.5; color: var(--ink-soft); text-wrap: pretty; }
.screen-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin-top: var(--space-7); }

.hero { padding-top: calc(var(--space-9) + var(--space-4)); padding-bottom: var(--space-8); align-content: start; }
.hero .screen-title { font-size: clamp(2.2rem, 5.6vw, 4.2rem); max-width: none; }
.screen-title .line { display: block; }
.hero .screen-lede { margin-top: var(--space-4); }
.play-area { width: min(100%, 76rem); margin-top: var(--space-7); text-align: left; }

/* The rotating word, exactly as Aloud does it: one grid cell, a short rise. */
.rotator { display: inline-grid; vertical-align: baseline; overflow: hidden; padding-bottom: .08em; }
.rotator-stack { display: grid; }
.rotator-stack > span { grid-area: 1 / 1; white-space: nowrap; color: var(--brass-deep); font-style: italic; text-align: left; transition: transform 480ms var(--ease-spring), opacity 280ms var(--ease-out); }
.rotator-stack > [data-state="in"] { transform: none; opacity: 1; }
.rotator-stack > [data-state="below"] { transform: translateY(.9em); opacity: 0; }
.rotator-stack > [data-state="above"] { transform: translateY(-.9em); opacity: 0; }

/* --- The stage: the room you play in ----------------------------------- */
.stage { position: relative; aspect-ratio: 16 / 9; max-height: 74vh; width: 100%; margin-inline: auto; border-radius: var(--radius-xl); overflow: hidden; background: var(--night); box-shadow: var(--shadow-night); color: var(--night-text); isolation: isolate; }
.stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.stage-start { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: var(--space-4); text-align: center; padding: var(--space-5); background: radial-gradient(50% 45% at 50% 50%, rgba(16,20,31,.85), rgba(16,20,31,.35)); transition: opacity var(--dur-slow) var(--ease-out), visibility 0s var(--dur-slow); }
.stage-start[hidden] { display: grid; opacity: 0; visibility: hidden; pointer-events: none; }
.stage-start .row { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); }
.stage .btn-primary { background: var(--night-text); color: var(--night); }
.stage .btn-primary:hover { background: #fff; }
.stage .btn-outline { border-color: #38456280; color: var(--night-text); }
.stage .btn-outline:hover { background: var(--night-raised); border-color: var(--night-faint); }
.stage-note { font-size: var(--text-sm); color: var(--night-soft); max-width: 40ch; min-height: 1.5em; }
.stage-note.trouble { color: #f0a99c; }
.stage-tools { position: absolute; right: var(--space-4); bottom: var(--space-4); display: flex; gap: var(--space-2); opacity: 0; transform: translateY(6px); transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out); }
.stage[data-source]:not([data-source="idle"]) .stage-tools { opacity: 1; transform: none; }
.stage-tools .btn { background: rgba(24,32,51,.82); color: var(--night-text); backdrop-filter: blur(8px); }
.stage-tools .btn:hover { background: var(--night-line); }
.stage-tools .btn[aria-pressed="true"] { color: #f0a99c; box-shadow: inset 0 0 0 1px #f0a99c; }
.toast { position: fixed; z-index: 10; left: 50%; top: var(--space-4); transform: translate(-50%, -8px); padding: .5rem .9rem; border-radius: var(--radius-full); background: rgba(24,32,51,.9); color: var(--night-text); font-size: var(--text-sm); font-weight: 500; opacity: 0; pointer-events: none; transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out); white-space: nowrap; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* --- Sign strip ------------------------------------------------------------ */
.signs { display: grid; grid-template-columns: repeat(11, minmax(0, 1fr)); gap: var(--space-2); margin-top: var(--space-4); }
.sign { position: relative; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: var(--space-2) var(--space-1) var(--space-3); border-radius: var(--radius-lg); border: 1px solid var(--chalk-line); background: color-mix(in srgb, var(--chalk-raised) 88%, transparent); transition: border-color var(--dur) var(--ease-out), background var(--dur) var(--ease-out), transform var(--dur) var(--ease-spring); }
.sign:hover { transform: translateY(-2px); border-color: var(--chalk-line-strong); }
.sign canvas { width: 100%; max-width: 64px; aspect-ratio: 1; }
.sign b { font-size: var(--text-xs); font-weight: 600; }
.sign small { display: flex; gap: var(--space-2); font-size: 11px; font-weight: 600; font-variant-numeric: tabular-nums; }
.sign .l { color: var(--L-text); } .sign .r { color: var(--R-text); }
.sign.onL { border-color: var(--L); background: var(--brass-wash); }
.sign.onR { border-color: var(--R); background: var(--mint-wash); }
.sign.onL.onR { background: linear-gradient(135deg, var(--brass-wash) 50%, var(--mint-wash) 50%); }

/* --- Controls -------------------------------------------------------------- */
.deck { display: grid; grid-template-columns: 1fr minmax(0, 1.05fr) 1fr; gap: var(--space-4); margin-top: var(--space-4); }
.panel { background: color-mix(in srgb, var(--chalk-raised) 92%, transparent); border: 1px solid var(--chalk-line); border-radius: var(--radius-lg); padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-4); backdrop-filter: blur(6px); }
.panel-head { display: flex; align-items: center; gap: var(--space-3); min-height: 2.6rem; }
.panel-head .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--c); box-shadow: 0 0 0 4px color-mix(in srgb, var(--c) 22%, transparent); flex: none; }
.panel-head h3 { font-size: var(--text-lg); }
.panel-head p { font-size: var(--text-sm); color: var(--ink-faint); }
.panel-head .now { margin-left: auto; font-family: var(--font-serif); font-size: var(--text-2xl); line-height: 1; color: var(--c-text); min-width: 2ch; text-align: right; font-variant-numeric: tabular-nums; }
.hand[data-z="0"] { --c: var(--L); --c-text: var(--L-text); --c-wash: var(--brass-wash); }
.hand[data-z="1"] { --c: var(--R); --c-text: var(--R-text); --c-wash: var(--mint-wash); }
.field { display: grid; gap: var(--space-2); }
.field > span { font-size: var(--text-xs); font-weight: 600; color: var(--ink-faint); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { padding: .4rem .7rem; border-radius: var(--radius-full); border: 1px solid var(--chalk-line); font-size: var(--text-sm); font-weight: 500; color: var(--ink-soft); transition: background var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out); }
.chip:hover { border-color: var(--chalk-line-strong); color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--c-wash, var(--chalk-sunk)); border-color: var(--c, var(--ink)); color: var(--ink); }
.seg { display: inline-flex; padding: 3px; border-radius: var(--radius-md); background: var(--chalk-sunk); }
.seg button { flex: 1; padding: .35rem .75rem; border-radius: 6px; font-size: var(--text-sm); font-weight: 500; color: var(--ink-soft); transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out); white-space: nowrap; }
.seg button[aria-pressed="true"] { background: var(--chalk-raised); color: var(--ink); box-shadow: 0 1px 2px rgba(27,36,48,.12); }
.row { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.row-split { display: grid; grid-template-columns: auto 1fr; gap: var(--space-5); align-items: end; }
.stepper { display: inline-flex; align-items: center; border-radius: var(--radius-md); background: var(--chalk-sunk); }
.stepper button { width: 2rem; height: 2rem; border-radius: 6px; color: var(--ink-soft); font-size: 1.1rem; }
.stepper button:hover { color: var(--ink); background: var(--chalk-line); }
.stepper output { min-width: 1.6rem; text-align: center; font-weight: 600; font-variant-numeric: tabular-nums; }
select { height: 2.2rem; padding: 0 .6rem; border-radius: var(--radius-md); border: 1px solid var(--chalk-line); background: var(--chalk-raised); font-size: var(--text-sm); font-weight: 500; }
input[type=range] { width: 100%; accent-color: var(--c, var(--ink)); }
.transport { display: flex; align-items: center; gap: var(--space-3); }
.play-btn { width: 2.6rem; height: 2.6rem; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: var(--chalk-raised); flex: none; transition: transform var(--dur) var(--ease-spring); }
.play-btn:hover { transform: scale(1.06); }
.play-btn svg { width: 15px; height: 15px; }
.tempo { flex: 1; display: grid; gap: 2px; }
.tempo span { font-size: var(--text-xs); color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.beats { display: grid; grid-template-columns: repeat(16, 1fr); gap: 3px; }
.beats i { height: 6px; border-radius: 3px; background: var(--chalk-line); transition: background var(--dur-fast); }
.beats i:nth-child(4n+1) { background: var(--chalk-line-strong); }
.beats i.on { background: var(--brass); }
.loop { display: grid; grid-template-columns: 1fr auto; gap: var(--space-2) var(--space-3); align-items: center; }
.loop-btn[data-s="armed"] { border-color: var(--brass); color: var(--brass-deep); }
.loop-btn[data-s="rec"] { border-color: var(--trouble); color: var(--trouble); }
.loop-btn[data-s="play"] { border-color: var(--mint); color: var(--mint-deep); }
.loop-meta { grid-column: 1 / -1; display: flex; align-items: center; gap: var(--space-3); font-size: var(--text-xs); color: var(--ink-faint); }
.loop-meta .bar { flex: 1; height: 3px; border-radius: 2px; background: var(--chalk-line); overflow: hidden; }
.loop-meta .bar i { display: block; height: 100%; width: 0; background: var(--mint); }
.icon-btn { width: 2rem; height: 2rem; display: inline-grid; place-items: center; border-radius: var(--radius-full); color: var(--ink-soft); }
.icon-btn:hover { background: var(--chalk-sunk); color: var(--ink); }
.icon-btn svg { width: 16px; height: 16px; }

/* --- Tutorial -------------------------------------------------------------- */
.tutorial { width: min(100%, 60rem); margin-top: var(--space-7); text-align: left; }
.tutorial .stage { max-height: none; }
.tut-caption { margin-top: var(--space-5); display: grid; grid-template-columns: 1fr auto; gap: var(--space-4); align-items: start; }
.tut-caption div { opacity: 0; transform: translateY(8px); }
.tut-caption.in div { opacity: 1; transform: none; transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); }
.tut-caption h3 { font-size: var(--text-2xl); }
.tut-caption p { margin-top: var(--space-2); color: var(--ink-soft); font-family: var(--font-serif); font-size: var(--text-lg); max-width: 44ch; }
.tut-controls { display: flex; gap: var(--space-2); }
.tut-controls .icon-btn { width: 2.6rem; height: 2.6rem; border: 1px solid var(--chalk-line-strong); }
.tut-controls [data-play] .i-play, .tut-controls [data-play][data-on="true"] .i-pause { display: block; }
.tut-controls [data-play] .i-pause, .tut-controls [data-play][data-on="true"] .i-play { display: none; }
.tut-controls [data-sound] .i-on, .tut-controls [data-sound][aria-pressed="true"] .i-off { display: none; }
.tut-controls [data-sound][aria-pressed="true"] .i-on { display: block; }
.chapters { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); margin-top: var(--space-5); }
.chapters button { text-align: left; display: grid; gap: var(--space-2); font-size: var(--text-sm); color: var(--ink-faint); font-weight: 500; }
.chapters button::before { content: ""; height: 3px; border-radius: 2px; background: linear-gradient(90deg, var(--ink) calc(var(--p, 0) * 100%), var(--chalk-line) 0); }
.chapters button[aria-current="step"], .chapters button:hover { color: var(--ink); }

.landing-foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3); padding: var(--space-6) clamp(var(--space-4), 5vw, var(--space-8)) var(--space-7); font-size: var(--text-sm); color: var(--ink-faint); }

/* --- Settings dialog ------------------------------------------------------- */
dialog { width: min(32rem, calc(100vw - 2rem)); border: 1px solid var(--chalk-line); border-radius: var(--radius-xl); background: var(--chalk-raised); color: var(--ink); padding: var(--space-6); box-shadow: var(--shadow-lg); }
dialog::backdrop { background: rgba(16,20,31,.45); backdrop-filter: blur(4px); }
dialog[open] { animation: rise var(--dur-slow) var(--ease-out); }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }
dialog h2 { font-size: var(--text-xl); margin-bottom: var(--space-4); }
.set { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-3) 0; border-top: 1px solid var(--chalk-line); }
.set b { display: block; font-weight: 600; }
.set small { color: var(--ink-faint); font-size: var(--text-sm); }
.set .ctl { flex: none; width: 13rem; display: flex; justify-content: flex-end; }
.switch { width: 2.5rem; height: 1.4rem; border-radius: var(--radius-full); background: var(--chalk-line-strong); position: relative; transition: background var(--dur) var(--ease-out); }
.switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: calc(1.4rem - 6px); aspect-ratio: 1; border-radius: 50%; background: #fff; transition: transform var(--dur) var(--ease-spring); }
.switch[aria-pressed="true"] { background: var(--mint); }
.switch[aria-pressed="true"]::after { transform: translateX(1.1rem); }
.keys { margin-top: var(--space-4); font-size: var(--text-sm); color: var(--ink-faint); }
kbd { font: 600 11px var(--font-sans); padding: 1px 6px; border-radius: var(--radius-sm); border: 1px solid var(--chalk-line-strong); background: var(--chalk); color: var(--ink); }

@media (max-width: 1080px) {
  .deck { grid-template-columns: 1fr 1fr; }
  .deck .mix { grid-column: 1 / -1; grid-row: 1; }
  .signs { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .screen { padding-inline: var(--space-4); }
  .deck { grid-template-columns: 1fr; }
  .signs { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .stage { aspect-ratio: 3 / 4; max-height: 78svh; }
  .tutorial .stage { aspect-ratio: 4 / 3; }
  .chapters { grid-template-columns: repeat(2, 1fr); }
  .nav nav .btn:first-child { display: none; }
  .tut-caption { grid-template-columns: 1fr; }
  /* Fingers, not cursors: every control gets a 44px target on phones. */
  .chip, .seg button, .btn-sm, .icon-btn, .stepper button, select, .bar input { min-height: 44px; }
  .nav nav .btn { display: none; }
  .nav nav [data-open] { display: inline-flex; }
}

/* --- Sing along and Write a song ------------------------------------------
   Brass marks the bar playing now, the same colour as the left hand that
   plays the chords, so the sheet and the stage agree on what is happening. */
.screen-inner.wide { width: min(100%, 72rem); }
.more { border-top: 1px solid var(--chalk-line); padding-top: var(--space-3); }
.more summary { cursor: pointer; font-size: var(--text-sm); font-weight: 600; color: var(--ink-soft); padding: var(--space-1) 0; border-radius: var(--radius-sm); }
.more summary:hover { color: var(--ink); }
.more[open] summary { margin-bottom: var(--space-3); }
.more > :not(summary) { display: grid; gap: var(--space-4); }

.sing { display: grid; grid-template-columns: 17rem minmax(0, 1fr); gap: var(--space-6); width: 100%; margin-top: var(--space-7); text-align: left; align-items: start; }
.song-list { display: grid; gap: var(--space-2); }
.song-list h4 { margin: var(--space-4) 0 0; font-size: var(--text-xs); font-weight: 600; color: var(--ink-faint); }
.song-list h4:first-child { margin-top: 0; }
.song-item { display: grid; gap: 2px; width: 100%; text-align: left; padding: var(--space-3) var(--space-4); border-radius: var(--radius-lg); border: 1px solid var(--chalk-line); background: color-mix(in srgb, var(--chalk-raised) 90%, transparent); transition: border-color var(--dur) var(--ease-out), background var(--dur) var(--ease-out); }
.song-item:hover { border-color: var(--chalk-line-strong); }
.song-item[aria-pressed="true"] { border-color: var(--ink); background: var(--chalk-raised); }
.song-item b { font-family: var(--font-serif); font-size: var(--text-lg); font-weight: 500; }
.song-item span { font-size: var(--text-sm); color: var(--ink-faint); }
.song-empty { font-size: var(--text-sm); color: var(--ink-faint); padding: var(--space-2) 0; }

.song-view { min-width: 0; }
.song-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: var(--space-4); }
.song-head h3 { font-size: var(--text-2xl); }
.song-head p { color: var(--ink-faint); font-size: var(--text-sm); margin-top: var(--space-1); }
.skills { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); margin-top: var(--space-5); }
.skill { padding: var(--space-4) var(--space-5); border-radius: var(--radius-lg); background: var(--c-wash); }
.skill[data-z="0"] { --c-wash: var(--brass-wash); --c-text: var(--L-text); }
.skill[data-z="1"] { --c-wash: var(--mint-wash); --c-text: var(--R-text); }
.skill small { font-size: var(--text-xs); font-weight: 600; color: var(--c-text); }
.skill h5 { margin: 2px 0 var(--space-2); font-family: var(--font-serif); font-size: var(--text-lg); font-weight: 500; }
.skill p { color: var(--ink-soft); font-size: var(--text-sm); line-height: 1.6; }
.sheet-title { margin: var(--space-6) 0 var(--space-3); font-family: var(--font-serif); font-size: var(--text-xl); font-weight: 500; }

.sheet { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--chalk-line); }
.bar { position: relative; display: grid; align-content: start; gap: 2px; padding: var(--space-3) var(--space-3) var(--space-4); border-bottom: 1px solid var(--chalk-line); border-left: 1px solid var(--chalk-line); text-align: left; transition: background var(--dur) var(--ease-out); min-width: 0; }
.bar:nth-child(4n+1) { border-left: 0; }
.bar .ch { font-family: var(--font-serif); font-size: var(--text-xl); line-height: 1.1; color: var(--L-text); }
.bar .nt { font-size: var(--text-xs); color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.bar .sg { font-size: var(--text-xs); font-weight: 600; color: var(--ink-soft); }
.bar .ly { margin-top: var(--space-2); font-family: var(--font-serif); font-size: var(--text-md); line-height: 1.35; overflow-wrap: anywhere; }
.bar .num { position: absolute; top: var(--space-2); right: var(--space-3); font-size: 11px; color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.bar.now { background: var(--brass-wash); }
.sheet.edit .bar { cursor: pointer; }
.sheet.edit .bar:hover { background: var(--chalk-sunk); }
.sheet.edit .bar.sel { background: var(--brass-wash); box-shadow: inset 0 0 0 2px var(--brass); }
.bar select, .bar input { width: 100%; font-size: var(--text-sm); }
.bar input { height: 2.2rem; padding: 0 .6rem; border-radius: var(--radius-md); border: 1px solid var(--chalk-line); background: var(--chalk-raised); font-family: var(--font-serif); font-size: var(--text-md); }

.composer { width: 100%; margin-top: var(--space-7); text-align: left; }
.composer input#cTitle { height: 2.2rem; padding: 0 .7rem; border-radius: var(--radius-md); border: 1px solid var(--chalk-line); background: var(--chalk-raised); font-size: var(--text-base); }
.comp-top { align-items: end; }
.comp-fill { display: flex; gap: var(--space-3); align-items: start; padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); background: var(--chalk-sunk); font-size: var(--text-sm); color: var(--ink-soft); }
.comp-fill .switch { flex: none; margin-top: 2px; }
.comp-fill b { color: var(--ink); font-weight: 600; }
.comp-note { font-size: var(--text-sm); color: var(--ink-faint); }
.comp-actions { gap: var(--space-2); }

@media (max-width: 860px) {
  .sing { grid-template-columns: 1fr; }
  .song-list { grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr)); }
  .song-list h4 { grid-column: 1 / -1; }
  .skills { grid-template-columns: 1fr; }
  .sheet { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bar:nth-child(4n+1) { border-left: 1px solid var(--chalk-line); }
  .bar:nth-child(2n+1) { border-left: 0; }
}