:root {
  --bg: #0f0f14;
  --panel: #17171f;
  --line: #2a2a36;
  --text: #ece9e2;
  --muted: #8d8a99;
  --accent: #ffd666;
  --accent-2: #7cc6c2;
  --radius: 14px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
header { padding: 28px 24px 8px; max-width: 1280px; margin: 0 auto; display: flex; gap: 16px; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; }
header h1 { margin: 0; font-size: 26px; letter-spacing: -0.02em; }
header p { margin: 4px 0 0; color: var(--muted); }
main { max-width: 1280px; margin: 0 auto; padding: 16px 24px 48px; display: grid; gap: 20px; }

#upload-zone {
  border: 1.5px dashed var(--line); border-radius: var(--radius); padding: 28px;
  display: flex; gap: 16px; align-items: center; justify-content: space-between; flex-wrap: wrap;
  cursor: pointer; transition: border-color .15s, background .15s;
}
#upload-zone:hover, #upload-zone:focus-visible, #upload-zone.drag { border-color: var(--accent); background: #1b1a16; outline: none; }
#upload-zone strong { font-size: 17px; }
.privacy { color: var(--muted); font-size: 13px; }

button {
  font: inherit; color: var(--text); background: #262633; border: 1px solid var(--line);
  border-radius: 10px; padding: 9px 16px; cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--accent); color: #18150a; border-color: var(--accent); font-weight: 600; }

#stage { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr); gap: 20px; }
#stage[hidden] { display: none; }
@media (max-width: 900px) { #stage { grid-template-columns: 1fr; } }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; min-width: 0; }
.canvas-wrap { display: flex; justify-content: center; }
#canvas { border-radius: 10px; display: block; max-width: 100%; }
#status { margin: 12px 2px 0; color: var(--muted); font-size: 14px; min-height: 1.5em; }
#status.error { color: #ff8a80; }

.transport { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 14px; }
.transport label { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; }
.transport input[type=range] { width: 110px; accent-color: var(--accent); }

#chord-strip { display: flex; gap: 8px; margin-top: 16px; }
.chord {
  flex: 1 1 0; border-radius: 10px; padding: 10px 12px; background: #1e1e28;
  border: 1px solid var(--line); border-top: 4px solid var(--chord-color); transition: transform .25s, background .25s;
}
.chord.active { background: #2a2718; border-color: var(--accent); transform: translateY(-3px); }
.chord .roman { font-weight: 700; font-size: 18px; }
.chord .symbol { color: var(--accent-2); }
.chord .notes { color: var(--muted); font: 12px ui-monospace, Menlo, monospace; }

#voice-graph { width: 100%; height: auto; margin-top: 12px; }
#voice-graph .voice { fill: none; stroke: var(--accent-2); stroke-width: 1.6; opacity: .75; }
#voice-graph .col rect { fill: transparent; transition: fill .2s; }
#voice-graph .col.active rect { fill: rgba(255, 214, 102, .14); }
#voice-graph circle { fill: var(--text); }
#voice-graph text { fill: var(--muted); font: 11px ui-monospace, Menlo, monospace; text-anchor: middle; }

h2 { font-size: 15px; margin: 0 0 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
h3 { font-size: 14px; margin: 18px 0 6px; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; }
.facts div { background: #1e1e28; border-radius: 10px; padding: 8px 10px; }
.facts dt { color: var(--muted); font-size: 12px; }
.facts dd { margin: 0; font-weight: 600; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 5px 6px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 500; }
.swatch { display: inline-block; width: 18px; height: 18px; border-radius: 5px; border: 1px solid #fff3; vertical-align: middle; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

/* ── Controls ── */
select {
  font: inherit; color: var(--text); background: #262633; border: 1px solid var(--line);
  border-radius: 10px; padding: 8px 10px; max-width: 260px;
}
.transport.secondary { margin-top: 8px; }
.graph-caption { margin: 2px 0 0; }

/* ── Tabs ── */
.tabs { display: flex; gap: 6px; margin-bottom: 14px; border-bottom: 1px solid var(--line); }
.tabs button {
  background: none; border: none; border-bottom: 2px solid transparent; border-radius: 0;
  padding: 8px 4px; margin-right: 12px; color: var(--muted);
}
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }

/* ── Why panel ── */
.headline { font-size: 18px; font-weight: 650; margin: 0 0 10px; }
details.why { border-top: 1px solid var(--line); padding: 10px 0 4px; }
details.why summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; }
details.why summary::-webkit-details-marker { display: none; }
details.why summary::after { content: '+'; color: var(--muted); font-weight: 400; }
details.why[open] summary::after { content: '−'; }
details.why p { margin: 8px 0; color: #d9d5cc; }
details.why b { color: var(--text); }
.why-items { padding-left: 0; list-style: none; margin: 8px 0; display: grid; gap: 8px; font-size: 14px; color: #d9d5cc; }
.why-items .swatch { margin-right: 6px; width: 14px; height: 14px; }

.fingerprint { margin: 10px 0 6px; display: grid; gap: 5px; }
.fp-row { display: grid; grid-template-columns: 96px 1fr 38px; gap: 8px; align-items: center; font-size: 13px; color: var(--muted); }
.fp-row.supporting { color: var(--text); font-weight: 600; }
.fp-track { position: relative; height: 8px; background: #23232e; border-radius: 99px; }
.fp-fill { position: absolute; inset: 0 auto 0 0; background: var(--accent-2); border-radius: 99px; opacity: .8; }
.fp-row.supporting .fp-fill { background: var(--accent); opacity: 1; }
.fp-target { position: absolute; top: -4px; width: 2px; height: 16px; background: var(--text); border-radius: 2px; transform: translateX(-1px); }
.fp-value { text-align: right; font: 12px ui-monospace, Menlo, monospace; }
.fp-legend { margin-top: 4px; }
.fp-swatch { display: inline-block; width: 18px; height: 8px; border-radius: 99px; background: var(--accent-2); vertical-align: middle; }
.fp-tick { display: inline-block; width: 2px; height: 12px; background: var(--text); vertical-align: middle; }

/* ── How it works dialog ── */
dialog {
  max-width: 760px; width: calc(100% - 32px); max-height: 86vh; overflow: auto;
  background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 26px;
}
dialog::backdrop { background: rgba(0, 0, 0, .6); }
dialog h2 { text-transform: none; letter-spacing: -0.01em; font-size: 22px; color: var(--text); margin: 0 0 8px; }
.dialog-close { position: sticky; top: 0; float: right; margin: -6px -10px 0 0; }
.dialog-close button { padding: 4px 10px; }
.steps { padding-left: 20px; display: grid; gap: 10px; }
.steps ul { margin: 6px 0 0; padding-left: 18px; color: #d9d5cc; }
.library { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.lib-item { background: #1e1e28; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-size: 14px; display: grid; gap: 4px; }
.lib-head { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; }

.credits { color: var(--muted); padding-left: 18px; display: grid; gap: 2px; }

/* ── Dropdown menus (Export) ── */
details.menu { position: relative; }
details.menu > summary {
  list-style: none; cursor: pointer; color: var(--text); background: #262633; border: 1px solid var(--line);
  border-radius: 10px; padding: 9px 16px; user-select: none;
}
details.menu > summary::-webkit-details-marker { display: none; }
details.menu > summary:hover { border-color: var(--accent); }
details.menu > summary.disabled { opacity: .45; cursor: not-allowed; }
details.menu > summary.busy { opacity: .7; cursor: progress; }
.menu-items {
  position: absolute; z-index: 20; top: calc(100% + 6px); left: 0; min-width: 270px; width: max-content; max-width: min(360px, 90vw);
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 6px;
  box-shadow: 0 12px 30px rgba(0,0,0,.45); display: flex; flex-direction: column; gap: 2px;
}
.menu-items > * { flex-shrink: 0; }
.menu-items button { text-align: left; background: none; border: 1px solid transparent; display: grid; gap: 1px; padding: 8px 10px; }
.menu-items button:hover { background: #22222d; border-color: var(--line); }
.menu-items button span { color: var(--muted); font-size: 12px; }

/* ── Mood slider ── */
.transport label.mood input { width: 90px; }

/* ── Edit mode ── */
.edit-bar { display: flex; justify-content: flex-end; margin-top: 12px; }
#edit-btn[aria-pressed="true"] { background: var(--accent); color: #18150a; border-color: var(--accent); font-weight: 600; }
#canvas.editing { cursor: crosshair; touch-action: none; }
.edit-panel { margin-top: 10px; border: 1px solid var(--accent); border-radius: 12px; padding: 12px 14px; background: #1b1a14; }
.edit-help { margin: 0 0 10px; font-size: 14px; color: #d9d5cc; }
.palette-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.palette-bar button { display: flex; align-items: center; gap: 6px; padding: 6px 10px; font-size: 14px; }
.palette-bar .swatch { width: 16px; height: 16px; }
.harmony { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.harmony meter { width: 160px; height: 12px; }
.edit-tips { margin: 8px 0; padding-left: 0; list-style: none; display: grid; gap: 4px; font-size: 14px; }
.edit-tips li { padding: 6px 10px; border-radius: 8px; background: #22222d; }
.edit-tips li::before { margin-right: 6px; }
.edit-tips li.ok::before { content: '✓'; color: #7cd992; }
.edit-tips li.tip::before { content: '💡'; }
.edit-tips li.warn { background: #3a2a1c; }
.edit-tips li.warn::before { content: '⚠'; color: var(--accent); }
.edit-actions { display: flex; gap: 8px; }
#chord-strip.editable .chord { cursor: pointer; outline: 1px dashed rgba(255, 214, 102, .45); }
#chord-strip.editable .chord:hover { background: #2a2718; }
.chord-menu {
  position: absolute; z-index: 40; width: min(380px, calc(100vw - 16px)); max-height: 70vh; overflow: auto;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 6px;
  box-shadow: 0 14px 34px rgba(0,0,0,.5); display: grid; gap: 2px;
}
.chord-menu-head { display: flex; align-items: center; gap: 8px; padding: 6px 8px 8px; font-size: 14px; flex-wrap: wrap; }
.chord-menu button { text-align: left; background: none; border: 1px solid transparent; display: grid; grid-template-columns: 18px auto 1fr; column-gap: 6px; align-items: baseline; padding: 7px 8px; }
.chord-menu button:hover { background: #22222d; border-color: var(--line); }
.chord-menu button.current { border-color: var(--accent); }
.chord-menu .star { color: var(--accent); }
.chord-menu .why { grid-column: 2 / -1; color: var(--muted); font-size: 12px; }
.chord-menu button.original { display: block; color: var(--accent-2); }

/* ── Film mode (slideshow / video → MP4) ── */
#film-stage { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr); gap: 20px; }
#film-stage[hidden] { display: none; }
@media (max-width: 900px) { #film-stage { grid-template-columns: 1fr; } }
#film-canvas { border-radius: 10px; display: block; max-width: 100%; max-height: 62vh; background: #000; }
.film-scenes { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px 8px; margin-top: 8px; }
.film-scenes .scene { flex: 0 0 auto; display: grid; grid-template-columns: auto 1fr; gap: 2px 8px; padding: 6px; text-align: left; font-size: 12px; border-radius: 10px; }
.film-scenes .scene canvas { grid-row: span 3; width: 72px; height: 45px; border-radius: 6px; }
.film-scenes .scene.active { border-color: var(--accent); background: #2a2718; }
.film-scenes .scene .t { color: var(--muted); }
.film-scenes .scene .c { display: flex; gap: 2px; }
.film-scenes .scene .c i { width: 12px; height: 8px; border-radius: 2px; display: inline-block; }
.film-progress { display: flex; gap: 10px; align-items: center; margin-top: 12px; }
.film-progress progress { flex: 1; height: 10px; accent-color: var(--accent); }
.film-credits-box { margin-top: 12px; }
.film-credits-box summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.film-credits-box textarea { width: 100%; background: #111118; color: var(--text); border: 1px solid var(--line); border-radius: 8px; font: 12px/1.4 ui-monospace, monospace; padding: 8px; }
#film-why h3 { margin-top: 0; }
.scene-list { padding-left: 20px; font-size: 13px; }
.scene-list li { margin: 3px 0; }
.film-progress[hidden] { display: none; }

/* ── Camera mode ── */
.zone-actions { display: flex; gap: 10px; flex-wrap: wrap; }
#camera-stage { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr); gap: 20px; }
#camera-stage[hidden] { display: none; }
@media (max-width: 900px) { #camera-stage { grid-template-columns: 1fr; } }
.camera-wrap { position: relative; }
#cam-canvas { border-radius: 10px; display: block; max-width: 100%; max-height: 62vh; background: #000; }
.cam-flash { position: absolute; inset: 0; background: #fff; opacity: 0; pointer-events: none; border-radius: 10px; }
.cam-flash.go { animation: camflash .35s ease-out; }
@keyframes camflash { from { opacity: .85; } to { opacity: 0; } }
.rec-badge { position: absolute; top: 10px; left: 10px; background: rgba(0,0,0,.6); color: #ff5f56; font-weight: 700; font-size: 13px; padding: 4px 10px; border-radius: 999px; }
.rec-badge[hidden] { display: none; }
button.recording { border-color: #ff5f56; color: #ff8a80; }
#cam-motion { width: 90px; }
.cam-follows { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; margin-top: 12px; }
.cam-follows-label { color: var(--muted); font-size: 13px; }
.cam-follows label { cursor: pointer; }
.cam-follows input { position: absolute; opacity: 0; pointer-events: none; }
.cam-follows label span { display: inline-block; padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; background: #1b1b24; }
.cam-follows input:checked + span { border-color: var(--accent); color: var(--accent); background: rgba(255,214,102,.08); }
.cam-follows input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
#cam-follows-hint { flex-basis: 100%; }
.cam-result { margin-top: 14px; padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: #1b1b24; }
.cam-result[hidden] { display: none; }
.cam-result video { width: 100%; max-height: 300px; border-radius: 8px; background: #000; }
.cam-result-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
#cam-why h3 { margin-top: 0; }
.chip { display: inline-block; border: 1px solid; border-bottom-width: 3px; border-radius: 8px; padding: 1px 8px; margin: 2px 2px 2px 0; font-size: 13px; }
.menu-items hr { border: 0; border-top: 1px solid var(--line); margin: 4px 0; }

/* ── Export menu groups ── */
.menu-group { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 8px 10px 2px; }
.menu-items { max-height: 70vh; overflow-y: auto; }

/* ── This session (gallery) ── */
.gallery[hidden] { display: none; }
.gallery-head { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.gallery-head h2 { margin: 0; font-size: 17px; }
.gallery-items { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 10px; margin-top: 10px; }
.gitem { display: grid; grid-template-columns: 96px 1fr; gap: 6px 10px; align-items: center; padding: 8px; border: 1px solid var(--line); border-radius: 12px; background: #1b1b24; }
.gitem img { width: 96px; height: 60px; object-fit: cover; border-radius: 8px; grid-row: span 2; background: #000; }
.ginfo { display: grid; }
.gactions { display: flex; gap: 6px; flex-wrap: wrap; }
.gactions button { padding: 5px 10px; font-size: 13px; }
dialog.player { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; color: var(--text); max-width: min(900px, 92vw); }
dialog.player::backdrop { background: rgba(0,0,0,.6); }
dialog.player video { width: 100%; max-height: 75vh; border-radius: 8px; background: #000; display: block; margin-top: 8px; }

/* ── Upload zone: the three ways in ── */
.zone-main { flex: 1 1 520px; min-width: 0; }
.modes { list-style: none; padding: 0; margin: 10px 0 8px; display: grid; gap: 6px; }
.modes li { display: grid; grid-template-columns: 26px 1fr; gap: 6px; font-size: 14px; color: #d7d4cc; }
.mode-icon { font-size: 16px; line-height: 1.4; }

/* ── Start buttons ── */
.zone-actions { flex-direction: column; align-items: stretch; min-width: 240px; }
.zone-actions button.big { padding: 12px 18px; font-size: 16px; }
.zone-actions button.link { background: none; border-color: transparent; color: var(--muted); text-decoration: underline; padding: 4px; }
.zone-actions button.link:hover { color: var(--text); }
@media (max-width: 600px) { .zone-actions { width: 100%; } }

#upload-zone.drag { border-style: solid; }
@media (max-width: 600px) { #upload-zone .zone-actions { order: -1; } }   /* phones: the buttons come first */

/* ── Footer ── */
.site-footer { max-width: 1280px; margin: 0 auto; padding: 8px 24px 32px; display: flex; gap: 8px 18px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.site-footer b { color: var(--text); font-weight: 600; }
.site-footer a { color: var(--accent-2); }


/* ── Follow the dancer ── */
#film-dancer[aria-pressed="true"] { border-color: var(--accent); background: #2a2718; }
.film-plan-wrap { margin-top: 6px; }
.film-plan-wrap[hidden] { display: none; }
.film-plan { width: 100%; height: 64px; display: block; border-radius: 8px; background: #111118; }
.plan-legend { color: var(--muted); display: flex; gap: 6px 10px; flex-wrap: wrap; align-items: center; margin-top: 4px; }
.plan-legend .lg { display: inline-block; width: 12px; height: 8px; border-radius: 2px; margin-right: -4px; }
.lg.still { background: #3b3b4a; } .lg.calm { background: #2f5d7a; } .lg.groove { background: #2f7a6c; } .lg.peak { background: #b8922f; } .lg.acc { background: #fff; width: 3px; }

/* ── FAQ and landing pages ── */
.faq h2 { margin: 0 0 8px; font-size: 18px; }
.faq details { border-top: 1px solid var(--line); padding: 10px 2px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 8px 0 2px; color: #d7d4cc; }
.faq a, .landing a { color: var(--accent-2); }
.landing header { display: block; }
.landing header h1 { font-size: 34px; }
.landing .crumb { margin: 0 0 6px; font-size: 14px; }
.landing .crumb a { color: var(--muted); }
.landing header p { max-width: 760px; font-size: 17px; }
.cta { display: inline-block; background: var(--accent); color: #18150a !important; font-weight: 700; text-decoration: none; padding: 12px 20px; border-radius: 10px; }
.how { padding-left: 22px; line-height: 1.6; }
.how li { margin: 8px 0; }