/* Design tokens: see docs/design/01-structure-and-visual-system.md.
   Palette: indigo and marigold. All text pairs meet WCAG AA. */
:root {
  color-scheme: light;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-devanagari: "Kohinoor Devanagari", "Noto Sans Devanagari", "Devanagari Sangam MN", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --color-bg: #f7f6f2;
  --color-surface: #fffefb;
  --color-surface-warm: #fdf3dc;
  --color-surface-raised: #ffffff;
  --color-ink: #1b1f33;
  --color-muted: #545a72;
  --color-line: #e2e0d8;
  --color-line-strong: #b9b6c9;
  --color-brand: #2f3a8f;
  --color-brand-strong: #232c6e;
  --color-saffron: #e9a426;
  --color-saffron-soft: #fcebc4;
  --color-success: #2f7d4f;
  --color-danger: #b3261e;
  --color-focus: #1f6feb;
  --color-shadow: rgb(27 31 51 / 14%);
  --color-header: #161b3a;
  --color-header-ink: #fdf8ec;
  --color-header-muted: #d9dcf0;
  --color-header-hover: #252b55;
  --color-header-field: #20264a;
  --color-header-border: #4a5180;
  --color-header-placeholder: #a9aed0;
  --color-soundbar: #efede6;
  --color-dock: #fbfaf6;
  --color-surface-tint: #faf6ea;
  --color-success-soft: #eef5ef;
  --color-danger-soft: #fff7f5;
  --color-danger-line: #f0c4c0;
  --color-warning: #8a5a00;
  --color-key-in-raga: #2f3a8f;
  --color-key-label: #fcebc4;
  --color-disabled-ink: #9c9fb0;
  --color-octave-key: #eceae3;
  --color-backdrop: rgb(22 27 58 / 45%);
  --space-1: .25rem; --space-2: .5rem; --space-3: .75rem; --space-4: 1rem; --space-5: 1.5rem; --space-6: 2rem; --space-7: 3rem;
  --radius-sm: .375rem; --radius-md: .625rem; --radius-lg: 1rem; --radius-pill: 999px;
  --shadow-sm: 0 2px 8px var(--color-shadow);
  --shadow-md: 0 10px 28px var(--color-shadow);
  --text-xs: .75rem; --text-sm: .875rem; --text-md: 1rem; --text-lg: 1.125rem; --text-xl: 1.5rem; --text-2xl: clamp(1.8rem, 4vw, 2.8rem);
  --line-tight: 1.2; --line-normal: 1.5;
  --target-min: 2.75rem;
  --shell-max: 76rem;
  /* Older names, kept so rules written before the token layer still work. */
  --bg: var(--color-bg); --panel: var(--color-surface); --ink: var(--color-ink); --muted: var(--color-muted);
  --line: var(--color-line); --accent: var(--color-brand); --accent-2: var(--color-saffron);
  --ok: var(--color-success); --bad: var(--color-danger); --sel: var(--color-saffron-soft);
  font-family: var(--font-sans);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--color-bg); color: var(--color-ink); line-height: var(--line-normal); }
h1 { font-size: var(--text-xl); margin: 0; line-height: var(--line-tight); }
h2 { font-size: var(--text-lg); margin: 0 0 var(--space-2); line-height: var(--line-tight); }
h3 { font-size: var(--text-md); }
button, select, input, textarea { font: inherit; }
button, .button {
  border: 1px solid var(--color-line-strong); background: var(--color-surface-raised); border-radius: var(--radius-sm);
  padding: .35rem .75rem; min-height: 2rem; cursor: pointer; text-decoration: none; color: inherit; display: inline-flex;
  align-items: center; justify-content: center; gap: .3rem; line-height: 1.2;
}
button:hover, .button:hover { border-color: var(--color-saffron); background: var(--color-surface-warm); }
button.primary, .button.primary { background: var(--color-brand); color: #fff; border-color: var(--color-brand); font-weight: 600; }
button.primary:hover { background: var(--color-brand-strong); }
button.small { min-height: 1.75rem; padding: .15rem .55rem; font-size: var(--text-sm); }
button:disabled, button:disabled:hover { opacity: .5; cursor: default; background: var(--color-surface-raised); border-color: var(--color-line-strong); }
button.primary:disabled { background: var(--color-brand); }
.link-button { border: 0; background: none; color: var(--color-brand); text-decoration: underline; padding: 0 .2rem; min-height: auto; font-size: var(--text-sm); }
.link-button:hover { background: none; color: var(--color-brand-strong); }
input, select, textarea { border: 1px solid var(--color-line-strong); border-radius: var(--radius-sm); padding: .3rem .45rem; background: #fff; color: var(--color-ink); min-height: 2rem; }
input[type=number] { width: 4.5rem; }
input[type=checkbox] { min-height: auto; width: 1.05rem; height: 1.05rem; accent-color: var(--color-brand); }
textarea { width: 100%; resize: vertical; }
label { font-size: var(--text-sm); color: var(--color-muted); display: inline-flex; gap: .35rem; align-items: center; }
label.check { gap: .35rem; color: var(--color-ink); }
label.stack { display: grid; gap: .1rem; color: var(--color-ink); font-weight: 600; margin-top: var(--space-3); }
label.stack .hint { font-weight: 400; }
label.stack input { width: 100%; }
code, .mono { font-family: var(--font-mono); }
:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.muted { color: var(--color-muted); } .small { font-size: var(--text-sm); }
.error { color: var(--color-danger); min-height: 1em; }
.row { display: flex; gap: var(--space-2); align-items: center; margin: var(--space-2) 0; }
.row.wrap { flex-wrap: wrap; } .row.between { justify-content: space-between; }
.grow { flex: 1; }
.hint { font-size: var(--text-sm); color: var(--color-muted); margin: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -999px; top: 0; z-index: 100; background: #fff; padding: var(--space-2) var(--space-3); }
.skip-link:focus { left: var(--space-2); }
kbd { font-family: var(--font-mono); font-size: .8em; border: 1px solid var(--color-line-strong); border-bottom-width: 2px; border-radius: 4px; padding: 0 .3em; background: #fff; color: var(--color-ink); }

/* Header. */
.topbar { display: flex; align-items: center; gap: var(--space-3) var(--space-5); flex-wrap: wrap; padding: var(--space-2) var(--space-4); background: var(--color-header); color: #fff; }
.brand { display: inline-flex; align-items: center; gap: .55rem; color: inherit; text-decoration: none; }
.brand img { display: block; }
.wordmark { font-family: var(--font-serif); font-size: 1.4rem; letter-spacing: .02em; color: var(--color-header-ink); }
.wordmark .devanagari { font-family: var(--font-devanagari); font-size: 1rem; color: var(--color-saffron); margin-left: .35rem; }
.primary-nav { display: flex; gap: var(--space-1); }
.primary-nav a { color: var(--color-header-muted); text-decoration: none; font-weight: 600; padding: .4rem .8rem; border-radius: var(--radius-pill); }
.primary-nav a:hover { background: var(--color-header-hover); color: #fff; }
.primary-nav a[aria-current=page] { background: var(--color-saffron); color: var(--color-header); }
.raga-picker { display: flex; gap: .4rem; flex: 1; justify-content: flex-end; min-width: min(100%, 22rem); }
.raga-picker input { flex: 1; max-width: 22rem; min-width: 8rem; background: var(--color-header-field); color: #fff; border-color: var(--color-header-border); }
.raga-picker input::placeholder { color: var(--color-header-placeholder); }
.raga-picker button:not(.primary) { background: transparent; color: #fff; border-color: var(--color-header-border); }
.raga-picker button:not(.primary):hover { background: var(--color-header-hover); }
.raga-picker button.primary { background: var(--color-saffron); color: var(--color-header); border-color: var(--color-saffron); }
@media (max-width: 720px) {
  .wordmark .devanagari { display: none; }
  .topbar { padding: var(--space-2) var(--space-3); }
  .primary-nav { order: 3; width: 100%; justify-content: space-around; }
  .primary-nav a { flex: 1; text-align: center; }
  .raga-picker { order: 2; flex-basis: 100%; }
  .raga-picker input { max-width: none; }
}

.app-status { display: flex; align-items: center; gap: .5rem; padding: .6rem 1rem; background: var(--color-surface-warm); border-bottom: 1px solid var(--color-line); color: var(--color-muted); }
.app-status[hidden] { display: none; }
.app-status.error-state { color: var(--color-danger); background: var(--color-danger-soft); }
.spinner { width: 1rem; height: 1rem; border: 2px solid var(--color-line); border-top-color: var(--color-brand); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Sound bar: always visible while you scroll. */
.soundbar { position: sticky; top: 0; z-index: 10; background: var(--color-soundbar); border-bottom: 1px solid var(--color-line); padding: .3rem var(--space-4); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .3rem var(--space-4); }
.soundbar label { font-size: var(--text-sm); }
.soundbar .group { display: flex; gap: .45rem; align-items: center; flex-wrap: wrap; }
.soundbar .theka { display: none; flex-basis: 100%; overflow-x: auto; padding-bottom: .1rem; }
.soundbar.tabla-on .theka { display: flex; }
.record-time[hidden] { display: none; }
@media (max-width: 720px) {
  .soundbar { padding: .3rem var(--space-3); justify-content: flex-start; }
  .soundbar .unit { display: none; }
  .soundbar input[type=number] { width: 3.6rem; }
  /* On phones the sound bar scrolls away so the music has room. */
  .soundbar { position: static; }
}
.toggle[aria-pressed=true] { background: var(--color-success); color: #fff; border-color: var(--color-success); }
.toggle[aria-pressed=true]::before { content: "■"; font-size: .7em; }
.toggle[aria-pressed=false]::before { content: "▶"; font-size: .7em; }
.record .dot { display: inline-block; width: .7rem; height: .7rem; border-radius: 50%; background: var(--color-danger); }
.record[aria-pressed=true] { background: var(--color-danger); color: #fff; border-color: var(--color-danger); }
.record[aria-pressed=true] .dot { background: #fff; animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: .2; } }
.theka { display: flex; gap: 2px; font-size: var(--text-xs); font-family: var(--font-mono); }
.theka span { padding: 1px 4px; border-radius: 3px; white-space: nowrap; }
.theka span.vib { border-left: 2px solid var(--color-muted); }
.theka span.on { background: var(--color-saffron); color: var(--color-header); }
.popover { position: relative; }
.popover > summary { list-style: none; cursor: pointer; border: 1px solid var(--color-line-strong); background: #fff; border-radius: var(--radius-sm); padding: .35rem .75rem; font-size: var(--text-sm); min-height: 2rem; display: inline-flex; align-items: center; }
.popover > summary::-webkit-details-marker { display: none; }
.popover > summary::after { content: "▾"; color: var(--color-muted); margin-left: .3rem; }
.popover-body { position: absolute; z-index: 30; top: calc(100% + .3rem); left: 0; width: min(26rem, 92vw); background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); box-shadow: var(--shadow-md); display: grid; gap: .4rem; }
.popover-body h3 { font-size: var(--text-sm); margin: .3rem 0 0; color: var(--color-ink); }
.sound-drawer .popover-body { left: auto; right: 0; }
@media (max-width: 720px) { .sound-drawer .popover-body { position: fixed; left: var(--space-2); right: var(--space-2); top: auto; width: auto; } }

/* Welcome screen on the first visit. */
body.welcoming .raga-hero, body.welcoming .learn-nav, body.welcoming main { display: none; }
.welcome { max-width: var(--shell-max); margin: 0 auto; padding: var(--space-6) var(--space-4) var(--space-7); }
.welcome[hidden] { display: none; }
.welcome h1 { font-family: var(--font-serif); font-size: var(--text-2xl); font-weight: 600; }
.welcome-lead { font-size: var(--text-lg); color: var(--color-muted); max-width: 40rem; }
.path-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: var(--space-4); margin: var(--space-5) 0; }
.path-card { background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: var(--space-5); display: grid; gap: var(--space-2); align-content: start; box-shadow: var(--shadow-sm); }
.path-card h2 { font-family: var(--font-serif); font-size: var(--text-xl); margin: 0; }
.path-card p { margin: 0 0 var(--space-2); color: var(--color-muted); }
.path-card button { justify-self: start; min-height: var(--target-min); padding-inline: var(--space-5); }
.starter-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); color: var(--color-muted); }

/* Raga summary under the sound bar. */
.raga-hero { padding: var(--space-4) var(--space-4) var(--space-2); display: grid; gap: var(--space-2); max-width: var(--shell-max); margin: 0 auto; }
.raga-heading { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-2) var(--space-4); }
.raga-heading h1 { font-family: var(--font-serif); font-size: 2rem; font-weight: 600; }
.facts { display: flex; flex-wrap: wrap; gap: .35rem; }
.fact { font-size: var(--text-sm); background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-pill); padding: .1rem .65rem; display: inline-flex; align-items: center; gap: .3rem; }
.fact .term { font-weight: 600; }
.swara-strip { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: flex-start; }
.notation-keys { display: flex; flex-wrap: wrap; gap: .25rem; }
.script-switch { display: inline-flex; align-items: center; gap: .25rem; }
.script-switch button[aria-pressed=true] { background: var(--color-brand); color: #fff; border-color: var(--color-brand); }
/* Devanagari swaras need a Devanagari font and room for marks above and below. */
[data-script=deva] :is(.tok, .nkey b, .wkey .sw, .bkey .sw, .km-key span, .phrase-notes, .improv-beats, .cbeat .nt) { font-family: var(--font-devanagari); }
.mandra { position: relative; display: inline-block; }
.mandra::after { content: ""; position: absolute; left: 50%; bottom: -.2em; width: .24em; height: .24em; border-radius: 50%; background: currentColor; transform: translateX(-50%); }
[data-script=deva] :is(.tok, .phrase-notes span, .improv-beats span, .cbeat .nt) { line-height: 1.6; }
.nkey { min-width: 2.6rem; min-height: var(--target-min); flex-direction: column; gap: 0; text-align: center; border: 1px solid var(--color-line); border-radius: var(--radius-sm); padding: .15rem .3rem; background: #fff; }
.nkey b { display: block; font-family: var(--font-mono); font-size: 1.05rem; }
.nkey small { font-size: .65rem; color: var(--color-muted); }
.nkey.in-raga { background: var(--color-surface-warm); border-color: var(--color-saffron); }
.nkey.varjit { opacity: .4; }
.nkey.playing { background: var(--color-brand); border-color: var(--color-brand); color: #fff; opacity: 1; }
.nkey.playing small { color: var(--color-saffron-soft); }
.legend { font-size: var(--text-sm); max-width: 40rem; }
.legend summary { cursor: pointer; color: var(--color-brand); font-weight: 600; padding: .4rem 0; }
.legend ul { margin: .2rem 0; padding-left: 1.1rem; color: var(--color-muted); display: grid; gap: .2rem; }
@media (max-width: 720px) {
  .raga-heading h1 { font-size: 1.6rem; }
  .notation-keys { flex-wrap: nowrap; overflow-x: auto; max-width: 100%; padding-bottom: .2rem; }
  .swara-strip { display: grid; }
}

/* Term help. */
.term { border: 0; background: none; padding: 0; min-height: auto; color: inherit; font: inherit; text-decoration: underline dotted var(--color-brand); text-underline-offset: 3px; cursor: help; }
.term:hover { background: none; color: var(--color-brand); }
.term-pop { position: absolute; z-index: 60; max-width: min(22rem, 92vw); background: var(--color-header); color: #fff; padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); box-shadow: var(--shadow-md); font-size: var(--text-sm); }
.term-pop[hidden] { display: none; }
.term-pop strong { display: block; color: var(--color-saffron); text-transform: capitalize; }
.term-pop p { margin: .2rem 0 0; }
.glossary { display: grid; grid-template-columns: max-content 1fr; gap: var(--space-2) var(--space-4); margin: var(--space-3) 0 0; }
.glossary dt { font-weight: 700; text-transform: capitalize; }
.glossary dd { margin: 0; color: var(--color-muted); }

/* Learn tabs and the learning path. */
.learn-nav { position: sticky; top: var(--soundbar-h, 0px); z-index: 9; background: var(--color-bg); border-bottom: 1px solid var(--color-line); }
@media (max-width: 720px) { .learn-nav { top: 0; } }
.learn-nav[hidden] { display: none; }
.tabs { display: flex; gap: .2rem; }
.main-tabs { padding: 0 var(--space-4); overflow-x: auto; max-width: var(--shell-max); margin: 0 auto; }
.main-tabs button { border: 0; border-bottom: 3px solid transparent; border-radius: 0; background: none; font-weight: 600; color: var(--color-muted); padding: .6rem .9rem; min-height: var(--target-min); white-space: nowrap; }
.main-tabs button:hover { color: var(--color-ink); background: none; }
.main-tabs button[aria-selected=true] { color: var(--color-brand); border-bottom-color: var(--color-brand); }
.main-tabs .count { display: inline-block; min-width: 1.3rem; font-size: var(--text-xs); background: var(--color-line); color: var(--color-ink); border-radius: var(--radius-pill); padding: 0 .35rem; margin-left: .2rem; }
.main-tabs .count:empty { display: none; }
.learn-path { display: flex; align-items: center; gap: var(--space-2); overflow-x: auto; padding: var(--space-2) var(--space-4); max-width: var(--shell-max); margin: 0 auto; scroll-snap-type: x proximity; }
.learn-path:empty { display: none; }
.learn-path .lp-title { font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--color-muted); white-space: nowrap; }
.learn-path ol { display: flex; gap: var(--space-1); list-style: none; margin: 0; padding: 0; }
.lp-step { white-space: nowrap; scroll-snap-align: start; border-radius: var(--radius-pill); font-size: var(--text-sm); padding: .2rem .7rem; min-height: 2rem; }
.lp-step::before { content: attr(data-n); display: inline-grid; place-items: center; width: 1.2rem; height: 1.2rem; border-radius: 50%; background: var(--color-line); font-size: var(--text-xs); font-weight: 700; }
.lp-step.done { background: var(--color-success-soft); border-color: var(--color-success); }
.lp-step.done::before { content: "✓"; background: var(--color-success); color: #fff; }
.learn-path .lp-count { font-size: var(--text-sm); color: var(--color-muted); white-space: nowrap; }

main { padding: var(--space-4); max-width: var(--shell-max); margin: 0 auto; }
.view[hidden] { display: none; }
.view > * { min-width: 0; }
.panel { min-width: 0; background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: var(--space-4) var(--space-5); }
@media (max-width: 720px) { .panel { padding: var(--space-3); } main { padding: var(--space-3); } }
.panel-head { margin-bottom: var(--space-2); }
.panel-head h2 { margin-bottom: .2rem; }
.improv-panel .panel-head { align-items: center; gap: .6rem; }
.improv-panel .panel-head h2 { margin: 0 auto 0 0; }
.compose-view { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: var(--space-4); align-items: start; }
.library-view { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); align-items: start; }
@media (max-width: 960px) { .compose-view, .library-view { grid-template-columns: 1fr; } }
.step { display: inline-grid; place-items: center; width: 1.6rem; height: 1.6rem; border-radius: 50%; background: var(--color-brand); color: #fff; font-size: var(--text-sm); margin-right: .35rem; vertical-align: 1px; }
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem 1rem; background: var(--color-surface-warm); border-radius: var(--radius-md); padding: .45rem .75rem; margin: var(--space-2) 0; }
details.toolbar { display: block; }
details.toolbar summary { cursor: pointer; font-weight: 600; color: var(--color-brand); }
.toolbar-title { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .05em; color: var(--color-muted); font-weight: 700; }
.tool-groups { display: grid; gap: var(--space-2); margin: var(--space-3) 0; }
.tool-group { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem; }
.tool-group .toolbar-title { min-width: 6.5rem; }
.editor-grid { min-height: 4rem; border: 1px dashed var(--color-line-strong); border-radius: var(--radius-md); padding: var(--space-2); background: #fff; }
.actions { border-top: 1px solid var(--color-line); padding-top: var(--space-3); margin-top: var(--space-3); }
.label { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .05em; color: var(--color-muted); font-weight: 700; margin: var(--space-4) 0 var(--space-1); }
.empty-state { display: grid; gap: var(--space-2); justify-items: start; padding: var(--space-3); color: var(--color-muted); }
.empty-state strong { color: var(--color-ink); }
.empty-state ul { margin: 0; padding-left: 1.1rem; }

/* Overview. */
.overview { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: var(--space-4); align-items: start; }
@media (max-width: 960px) { .overview { grid-template-columns: 1fr; } }
.raga-notes { margin: 0; padding-left: 1.2rem; }
.raga-notes li { margin: .15rem 0; }
.overview h3 { margin: .2rem 0 .4rem; font-size: var(--text-lg); font-family: var(--font-serif); }
.next-steps { display: grid; gap: var(--space-3); }
.next-steps h3 { font-family: var(--font-sans); font-size: var(--text-md); }
.next-step { text-align: left; display: grid; justify-content: stretch; gap: .15rem; padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); background: #fff; border: 1px solid var(--color-line); }
.next-step:hover { border-color: var(--color-saffron); box-shadow: var(--shadow-sm); background: #fff; }
.next-step strong { color: var(--color-brand); }
.next-step span { font-size: var(--text-sm); color: var(--color-muted); }
.phrase-card { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); padding: var(--space-2) 0; border-top: 1px solid var(--color-line); }
.phrase-card:first-of-type { border-top: 0; }
.phrase-notes { display: flex; flex-wrap: wrap; gap: 2px; font-family: var(--font-mono); font-size: 1.05rem; background: var(--color-surface-warm); padding: .15rem .45rem; border-radius: var(--radius-sm); margin-right: auto; }
.phrase-notes span { padding: 0 3px; border-radius: 3px; }
.phrase-notes span.playing { background: var(--color-brand); color: #fff; }
.phrase-actions { display: flex; flex-wrap: wrap; gap: .3rem; }
.loop[aria-pressed=true] { background: var(--color-saffron-soft); border-color: var(--color-brand); }

/* Keyboard dock at the bottom of the window. */
.dock { position: sticky; bottom: 0; z-index: 10; background: var(--color-dock); border-top: 1px solid var(--color-line); box-shadow: 0 -4px 14px rgb(0 0 0 / 6%); padding: .3rem var(--space-4) .4rem; }
.dock .piano { height: 118px; }
.dock-head { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem var(--space-4); }
.dock-toggle { font-weight: 600; }
.dock-toggle::after { content: "▴"; }
.dock-toggle[aria-expanded=true]::after { content: "▾"; }
.dock .keyboard-hint { flex: 1; min-width: 12rem; font-size: var(--text-xs); }
.dock .vol input { width: 8rem; }
.dock-body { margin-top: .4rem; }
.dock-body[hidden] { display: none; }
.key-map-popover .popover-body { width: min(34rem, 92vw); bottom: calc(100% + .4rem); top: auto; left: auto; right: 0; }
@media (max-width: 720px) {
  .dock { padding: .3rem var(--space-2); }
  .dock .keyboard-hint { display: none; }
  .key-map-popover .popover-body { position: fixed; left: var(--space-2); right: var(--space-2); bottom: 3.5rem; width: auto; }
}

dialog { border: 1px solid var(--color-line); border-radius: var(--radius-lg); min-width: 320px; color: var(--color-ink); }
dialog::backdrop { background: var(--color-backdrop); }
dialog#raga-dialog, dialog#glossary-dialog { width: min(52rem, 94vw); max-height: 85vh; padding: var(--space-4); }
.dialog-head { display: flex; justify-content: space-between; align-items: center; }
.dialog-head h2 { margin: 0; }
#raga-filter { width: 100%; margin: .5rem 0; }
.raga-groups { max-height: 58vh; overflow-y: auto; }
.raga-chip .count { display: inline-block; margin-left: .3rem; font-size: .68rem; background: #fff; border-radius: 999px; padding: 0 .35rem; color: var(--color-muted); }
.raga-dialog-hint { margin: 0 0 .3rem; }
.chip[aria-pressed=true] { background: var(--color-brand); color: #fff; border-color: var(--color-brand); }

.chips { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem; margin: .4rem 0; }
.chip { font-size: var(--text-sm); border-radius: var(--radius-pill); padding: .15rem .7rem; background: var(--color-surface-warm); border-color: var(--color-line); }
.summary { font-size: var(--text-sm); color: var(--color-muted); margin: .3rem 0; }
.summary .tag { display: inline-block; background: var(--color-success-soft); color: var(--color-success); border-radius: 4px; padding: 0 .35rem; margin-right: .25rem; }

/* Compose: phrase builder and option cards. */
.builder { display: grid; grid-template-columns: repeat(auto-fill, minmax(10.5rem, 1fr)); gap: var(--space-2) var(--space-3); align-items: end; margin: var(--space-3) 0; }
.builder label:not(.check) { display: grid; gap: .15rem; }
.builder label:not(.check) select, .builder label:not(.check) input { width: 100%; }
.pattern { border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: var(--space-3); margin: var(--space-3) 0; background: #fff; }
.pattern.chosen { border-color: var(--color-brand); background: var(--color-surface-warm); }
.pattern h3 { margin: 0 0 var(--space-1); font-size: var(--text-md); }
.pattern .row { margin: .4rem 0 0; }
.pattern .meta { font-size: var(--text-xs); color: var(--color-muted); }
.fits { list-style: none; margin: var(--space-2) 0 0; padding: 0; font-size: var(--text-sm); display: grid; gap: .1rem; }
.fits li::before { content: "✓ "; color: var(--color-success); font-weight: 700; }
.fits li.tip::before { content: "△ "; color: var(--color-warning); }
.editor-head { margin-top: 0; }
.editor-head h2 { margin: 0; }
.play-in { background: var(--color-surface-warm); border-radius: var(--radius-md); padding: var(--space-2) var(--space-3); margin: var(--space-2) 0; display: grid; gap: .2rem; }
.editor-toolbar { margin-bottom: var(--space-2); }

/* Notation grid. */
.grid-wrap { overflow-x: auto; position: relative; }
.cycle { display: flex; gap: 0; margin: .3rem 0; }
.vibhag { display: flex; border-inline-start: 3px solid var(--color-line-strong); background: var(--color-surface-tint); border-radius: var(--radius-sm); padding-left: 2px; margin-right: 4px; position: relative; padding-top: 1rem; }
.vibhag.sam { border-inline-start-color: var(--color-brand); }
.vibhag .marker { position: absolute; top: 0; left: 4px; font-size: var(--text-xs); color: var(--color-brand); font-weight: 700; }
.beat { min-width: 2.6rem; min-height: 2.2rem; display: flex; justify-content: center; align-items: center; gap: 2px; padding: .15rem .2rem; margin: 0 1px; font-family: var(--font-mono); font-size: 1.05rem; }
.beat.multi { border-bottom: 2px solid var(--color-muted); border-radius: 0 0 10px 10px; }
.tok { padding: 0 3px; border-radius: 3px; cursor: pointer; }
.tok.sel { background: var(--color-saffron-soft); outline: 2px solid var(--color-brand); }
.tok.bad { color: var(--color-danger); text-decoration: underline wavy var(--color-danger); }
.tok.playing { background: var(--color-brand); color: #fff; }
.tok.hold, .tok.rest { color: var(--color-muted); }
.violations { font-size: var(--text-sm); color: var(--color-danger); display: grid; gap: var(--space-2); margin-top: var(--space-2); }
.violations.ok { color: var(--color-success); }
.fix-card { border: 1px solid var(--color-danger-line); background: var(--color-danger-soft); border-radius: var(--radius-md); padding: var(--space-2) var(--space-3); color: var(--color-ink); }
.fix-card strong { color: var(--color-danger); }
.fix-card .row { margin: .3rem 0 0; }

.piano { position: relative; height: 150px; user-select: none; display: flex; }
.wkey { flex: 1; border: 1px solid #bbb; border-radius: 0 0 6px 6px; background: #fff; position: relative; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; padding-bottom: 6px; cursor: pointer; }
.bkey { position: absolute; top: 0; height: 60%; background: #222; border-radius: 0 0 4px 4px; z-index: 2; color: #fff; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; padding-bottom: 4px; cursor: pointer; }
.wkey .sw, .bkey .sw { font-family: var(--font-mono); font-weight: 700; font-size: .85rem; }
.wkey .wn, .bkey .wn { font-size: .6rem; opacity: .6; }
.wkey.in-raga { background: var(--color-surface-warm); }
.bkey.in-raga { background: var(--color-key-in-raga); }
.wkey.sa, .bkey.sa { box-shadow: inset 0 -4px 0 var(--color-brand); }
.wkey.varjit .sw, .bkey.varjit .sw { opacity: .3; }
.wkey.active { background: var(--color-saffron) !important; }
.bkey.active { background: var(--color-brand) !important; }
.piano .kb { position: absolute; top: 4px; left: 50%; transform: translateX(-50%); font-size: .6rem; padding: 0 .25em; color: var(--color-muted); }
.bkey .kb { background: transparent; color: var(--color-key-label); border-color: #777; }
.wkey .kb { top: auto; bottom: 2.4rem; }
@media (max-width: 720px) { .wkey .wn, .bkey .wn { display: none; } }

.saved-line { border-bottom: 1px solid var(--color-line); padding: var(--space-2) 0; }
.saved-line .row { margin: .2rem 0; }
.recording { display: flex; gap: .6rem; align-items: center; border-bottom: 1px solid var(--color-line); padding: var(--space-2) 0; flex-wrap: wrap; }
.recording audio { height: 32px; max-width: 100%; }
.library-actions { margin-top: 0; }

dialog form { display: flex; flex-direction: column; gap: .5rem; min-width: min(22rem, 80vw); }
dialog label { display: flex; flex-direction: column; align-items: stretch; }
.toast { position: fixed; bottom: 4.5rem; left: 50%; transform: translateX(-50%); z-index: 70; background: var(--color-header); color: #fff; padding: .5rem 1rem; border-radius: var(--radius-md); opacity: 0; transition: opacity .2s; pointer-events: none; }
.toast.show { opacity: .95; }

.raga-group h4 { margin: .6rem 0 .25rem; font-size: var(--text-sm); color: var(--color-muted); font-weight: 600; }
.raga-group .chips { display: flex; flex-wrap: wrap; gap: .3rem; }
.chip.current { background: var(--color-brand); color: #fff; border-color: var(--color-brand); }

/* Compositions. */
.composition { border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); margin: var(--space-3) 0; background: #fff; scroll-margin-top: calc(var(--soundbar-h, 0px) + 6rem); }
.composition h3 { margin: 0; font-size: var(--text-lg); font-family: var(--font-serif); }
.composition .meta { margin: .15rem 0 .4rem; font-size: var(--text-sm); color: var(--color-muted); }
.composition .section-head { align-items: center; margin-top: var(--space-4); }
.composition .section-head h4 { margin: 0; font-size: var(--text-md); }
.comp-sections { display: flex; flex-wrap: wrap; gap: .3rem; margin: var(--space-2) 0; }
.comp-sections a { font-size: var(--text-sm); color: var(--color-brand); }
.taal-legend { font-size: var(--text-xs); color: var(--color-muted); margin: var(--space-1) 0; }
.taal-legend b { color: var(--color-brand); }
.line-row { display: flex; align-items: center; gap: var(--space-2); }
.line-row .grid-wrap { flex: 1; min-width: 0; }
.line-controls { display: flex; flex-direction: column; gap: 2px; }
.line-controls button { min-height: 1.6rem; padding: .05rem .45rem; font-size: var(--text-xs); }
.comp-line { display: flex; margin: .25rem 0; min-width: max-content; }
.cbeat { display: grid; grid-template-rows: .9rem 1.4rem 1.1rem; min-width: 3.1rem; padding: 0 .2rem; border-left: 1px solid var(--color-line); text-align: center; }
.cbeat.vib { border-left: 2px solid var(--color-line-strong); }
.cbeat.sam { border-left: 3px solid var(--color-brand); }
.cbeat .mk { font-size: .68rem; font-weight: 700; color: var(--color-brand); text-align: left; }
.cbeat .nt { font-family: var(--font-mono); font-size: .9rem; white-space: nowrap; }
.cbeat .wd { font-size: .78rem; color: var(--color-muted); white-space: nowrap; }
.cbeat.empty .nt { color: var(--color-line-strong); }
.cbeat.playing { background: var(--color-brand); border-radius: 4px; }
.cbeat.playing .nt, .cbeat.playing .wd, .cbeat.playing .mk { color: #fff; }
.comp-index { display: flex; flex-wrap: wrap; gap: .4rem; margin: .4rem 0; }
.comp-index a { display: grid; text-decoration: none; color: inherit; border: 1px solid var(--color-line); border-radius: var(--radius-md); padding: .35rem .7rem; background: #fff; }
.comp-index a:hover { border-color: var(--color-saffron); box-shadow: var(--shadow-sm); }
.comp-index strong { font-size: var(--text-sm); }
.comp-index span { font-size: var(--text-xs); color: var(--color-muted); }
.comp-notes summary { cursor: pointer; font-size: var(--text-sm); color: var(--color-muted); }
.comp-words { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(16rem, 100%), 1fr)); gap: .4rem 1.2rem; margin: .7rem 0 .3rem; padding: .6rem .9rem; background: var(--color-surface-tint); border-left: 3px solid var(--color-brand); border-radius: var(--radius-sm); }
.comp-words-section p { margin: .1rem 0 0; font-family: var(--font-serif); font-size: 1.05rem; line-height: 1.5; }
.comp-words-name { font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--color-muted); font-weight: 600; }
.perform-plan { margin-top: var(--space-3); border-top: 1px solid var(--color-line); padding-top: var(--space-2); }
.perform-plan summary { cursor: pointer; font-weight: 600; color: var(--color-brand); }
.perform-plan ol { margin: var(--space-2) 0 0; padding-left: 1.6rem; font-size: var(--text-sm); columns: 2 18rem; column-gap: var(--space-5); }
.perform-plan li { padding: .1rem .3rem; border-radius: var(--radius-sm); break-inside: avoid; }
.perform-plan li[aria-current=step] { background: var(--color-brand); color: #fff; font-weight: 600; }
.perform-status { margin-left: .3rem; }

/* Practice alaap and taan. */
.improv { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-2) var(--space-5); }
@media (max-width: 960px) { .improv { grid-template-columns: 1fr; } }
.improv-group h3 { margin: var(--space-3) 0 0; font-size: var(--text-lg); font-family: var(--font-serif); }
.improv-item { border-top: 1px solid var(--color-line); padding: var(--space-2) var(--space-2); border-radius: var(--radius-sm); }
.improv-item.is-current { background: var(--color-surface-warm); outline: 2px solid var(--color-saffron); }
.improv-head { align-items: center; gap: .3rem; flex-wrap: wrap; }
.improv-head > span { margin-right: auto; }
.improv-beats { display: flex; flex-wrap: wrap; gap: .2rem; margin-top: .25rem; font-size: var(--text-sm); }
.improv-beats span { padding: .05rem .3rem; border: 1px solid var(--color-line); border-radius: 4px; white-space: nowrap; }
.improv-beats span.sam { border-left: 3px solid var(--color-brand); }
.improv-beats span.playing { background: var(--color-brand); color: #fff; }

.km-row { display: flex; gap: .25rem; }
.km-row-1 { padding-left: 1.1rem; }
.key-map { display: grid; gap: .25rem; margin-top: .4rem; overflow-x: auto; }
.km-key { width: 2.5rem; height: 2.6rem; flex: none; border: 1px solid var(--color-line); border-radius: 5px; background: #fff; display: grid; place-items: center; align-content: center; gap: 1px; font-size: .78rem; }
.km-key kbd { font-size: .62rem; color: var(--color-muted); background: none; border: 0; padding: 0; }
.km-key span { font-family: var(--font-mono); font-weight: 600; }
.km-key.sa { background: var(--color-saffron-soft); border-color: var(--color-brand); }
.km-key.varjit span { color: var(--color-disabled-ink); text-decoration: line-through; }
.km-key.km-unused { opacity: .35; }
.km-key.km-octave { background: var(--color-octave-key); }
.km-key.km-octave span { font-size: .62rem; font-weight: 500; }
.not-found-page { min-height: 100vh; display: grid; place-items: center; }
.not-found { max-width: 28rem; text-align: center; background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 2rem; }

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }