/* Layout: a 9:16 stage (the actual video frame) beside a narrow control rail, like an editing app. Single dark look on purpose: the output video is black. */
:root{
  --bg:#0c0d11;
  --panel:#15171e;
  --line:#272b36;
  --fg:#e9ecf3;
  --muted:#8f96a8;
  --accent:#8fb2ea;
  --accent-deep:#3e66b6;
  --danger:#e57a7a;
  --f-display:"Zen Maru Gothic","Hiragino Maru Gothic ProN","Yu Gothic",sans-serif;
  --f-body:"Zen Kaku Gothic New","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{background:var(--bg);color:var(--fg)}
body{font-family:var(--f-body);font-size:14px;line-height:1.6;padding-inline:16px;padding-block:20px 40px}
.app{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:minmax(0,auto) minmax(0,1fr);gap:28px;align-items:start}
header{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 16px}
h1{font-family:var(--f-display);font-weight:700;font-size:26px;margin:0;letter-spacing:.02em}
header p{margin:0;color:var(--muted);font-size:13px}
.stage{position:relative;width:min(400px,calc((100vh - 140px) * 9 / 16));min-width:260px;max-width:100%}
.stage canvas{display:block;width:100%;height:auto;aspect-ratio:9/16;border-radius:10px;background:#000;border:1px solid var(--line)}
.stage.drag canvas{outline:2px dashed var(--accent);outline-offset:4px}
.transport{display:flex;align-items:center;gap:10px;margin-top:12px}
.transport input[type=range]{flex:1;min-width:0;accent-color:var(--accent)}
.time{font-family:var(--f-mono);font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.rail{display:flex;flex-direction:column;gap:18px;min-width:0}
section{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px;display:flex;flex-direction:column;gap:12px;min-width:0}
section h2{margin:0;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
label.f{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted);min-width:0}
select,textarea,input[type=text]{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:7px 9px;width:100%;min-width:0}
textarea{resize:vertical;min-height:84px;line-height:1.5}
button{font:inherit;font-weight:500;color:var(--fg);background:transparent;border:1px solid var(--line);border-radius:6px;padding:8px 14px;cursor:pointer;white-space:nowrap}
button:hover{border-color:var(--accent)}
button.primary{background:var(--accent);border-color:var(--accent);color:#0c0d11;font-weight:700}
button.primary:hover{filter:brightness(1.08)}
button:disabled{opacity:.45;cursor:not-allowed}
button:disabled:has(.pro){opacity:1;color:color-mix(in srgb,var(--fg) 45%,transparent)}
button:focus-visible,select:focus-visible,textarea:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.play{width:42px;height:42px;padding:0;border-radius:50%;display:grid;place-items:center;flex:none}
.play svg{width:16px;height:16px;fill:currentColor}
.drop{border:1px dashed var(--line);border-radius:8px;padding:14px;text-align:center;color:var(--muted);cursor:pointer}
.vh{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
#file:focus-visible+.drop{outline:2px solid var(--accent);outline-offset:2px}
.drop{display:block}
.drop:hover{border-color:var(--accent);color:var(--fg)}
.drop strong{color:var(--fg)}
.file{font-size:13px;color:var(--muted);margin:0}
.file b{color:var(--fg);font-weight:500}
.chords{max-height:300px;overflow-y:auto;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:6px}
.chords .c{display:grid;grid-template-columns:62px minmax(0,1fr) auto auto auto;align-items:center;border-bottom:1px solid var(--line)}
.chords .c button.mod{font-family:var(--f-body);font-size:11px;color:var(--muted);border-left:1px solid var(--line);padding:6px 10px;opacity:.55}
.chords .c:hover button.mod,.chords .c button.mod:focus-visible{opacity:1;color:var(--accent)}
.chords .c .deg{font-family:var(--f-display);font-size:13px;color:var(--muted);padding:0 10px;white-space:nowrap}
.chords .c .deg:empty{padding:0}
.chords .c select.col{width:auto;border:0;border-left:1px solid var(--line);border-radius:0;background:transparent;font-size:11px;padding:6px 4px;color:var(--muted)}
.chords .c select.col[data-c="gold"]{color:#f0c040}
.chords .c select.col[data-c="rainbow"]{color:#ff8fd0}
.chords .k{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:6px 8px;background:color-mix(in srgb,var(--accent) 8%,var(--panel));border-bottom:1px solid var(--line);border-top:1px solid color-mix(in srgb,var(--accent) 45%,transparent)}
.chords .k span{font-size:12px;font-weight:700;color:var(--accent);min-width:54px}
.chords .k select{width:auto;padding:4px 8px}
.chords .k button{padding:4px 10px;font-size:12px}
.chords>:last-child{border-bottom:0}
.chords .c.now{background:color-mix(in srgb,var(--accent) 14%,transparent)}
.chords .c button{border:0;border-radius:0;padding:6px 8px;font-family:var(--f-mono);font-size:12px;color:var(--muted);text-align:left;font-variant-numeric:tabular-nums}
.chords .c input{border:0;border-left:1px solid var(--line);border-radius:0;background:transparent;font-family:var(--f-display);font-size:15px;padding:6px 10px}
.chords .c input.edited{color:var(--accent)}
.themes{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:8px}
.themes button{display:flex;flex-direction:column;align-items:stretch;gap:6px;padding:6px;font-size:12px;text-align:center}
.themes button[aria-checked="true"]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.themes canvas{width:100%;height:auto;aspect-ratio:2/1;border-radius:4px;display:block}
.climax{display:flex;flex-direction:column;gap:6px}
.climax .r{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:6px 8px;border:1px solid var(--line);border-radius:6px}
.climax .r input{width:76px;font-family:var(--f-mono);font-size:12px;padding:5px 6px}
.climax .r button{padding:5px 9px;font-size:12px}
.climax .r .tag{font-size:11px;color:var(--accent)}
.climax .empty{font-size:12px;color:var(--muted)}
.seekwrap{position:relative;flex:1;min-width:0;display:flex;align-items:center}
.seekwrap input{width:100%}
.seekmarks{position:absolute;left:0;right:0;bottom:-4px;height:4px;pointer-events:none}
.seekmarks i{position:absolute;top:0;height:4px;border-radius:2px;background:#ff8fbf}
.hint{font-size:12px;color:var(--muted);margin:0}
.msg{font-size:13px;margin:0}
.msg:empty{display:none}
.msg.err{color:var(--danger)}
.rec-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--danger);margin-right:6px;animation:blink 1s infinite}
@keyframes blink{50%{opacity:.25}}
video{width:100%;max-width:260px;border-radius:8px;border:1px solid var(--line)}
@media (max-width:760px){.app{grid-template-columns:minmax(0,1fr)}.stage{margin:0 auto;width:min(360px,100%)}}
@media (prefers-reduced-motion:reduce){.rec-dot{animation:none}}
.credits{grid-column:1/-1;font-size:11px;color:var(--muted,#8a8d99);padding:8px 0 16px}.credits a{color:inherit}
.pro{display:inline-block;font-size:10px;font-weight:700;letter-spacing:.06em;line-height:1;padding:3px 5px;border-radius:4px;background:linear-gradient(135deg,#f6cf55,#e3a91f);color:#2a1d02;vertical-align:middle;text-transform:none}
.is-pro .pro{display:none}
.themes button{position:relative}.themes button .pro{position:absolute;top:2px;right:2px}
dialog{background:var(--panel,#16171d);color:var(--fg);border:1px solid var(--line);border-radius:10px;padding:20px;max-width:min(420px,calc(100vw - 32px))}
dialog::backdrop{background:rgba(0,0,0,.6)}
dialog h3{margin:0 0 8px;font-size:16px}dialog ul{margin:8px 0 12px;padding-left:20px}
/* locked Pro designs and buttons are dimmed, but their PRO badge keeps its full colour */
.themes button[aria-disabled="true"]{cursor:not-allowed}.themes button[aria-disabled="true"]>:not(.pro){opacity:.55}
.is-pro .free-only{display:none}