:root {
  --bg: #eef0ec; --paper: #f8f9f6; --ink: #15181a; --body: #3d4347; --muted: #596165;
  --line: #d9ddd6; --line-strong: #c3c9c1;
  --stage: #111417; --stage-2: #1a1f23; --stage-line: #262c31; --stage-ink: #c9d0d4;
  --s6: #e8b04a; --s5: #ec8160; --s4: #c779d8; --s3: #5ea8ea; --s2: #4ec9a2; --s1: #cfdc5c;
  --r: 14px; --r-sm: 9px;
  --sans: "Avenir Next", "Segoe UI", "Helvetica Neue", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0d0f11; --paper: #15191c; --ink: #eef1f2; --body: #c2c9cd; --muted: #8c959a;
    --line: #262c31; --line-strong: #353d43; color-scheme: dark; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--body); font: 16px/1.55 var(--sans); }
h1, h2 { color: var(--ink); font-weight: 600; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: clamp(2rem, 1.3rem + 3.2vw, 3.4rem); line-height: 1.04; max-width: 15ch; letter-spacing: -0.035em; }
h2 { font-size: 1.15rem; }
a { color: inherit; }
.small { font-size: .85rem; } .muted { color: var(--muted); }
main { max-width: 1180px; margin: 0 auto; padding: 0 20px 48px; }

.top { max-width: 1180px; margin: 0 auto; padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 650; font-size: 1.08rem; letter-spacing: -0.01em; }
.brand svg { color: var(--stage); }
@media (prefers-color-scheme: dark) { .brand svg { color: #252b30; } }

.btn { appearance: none; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); font: 600 .92rem/1 var(--sans);
  padding: 12px 16px; min-height: 44px; border-radius: 999px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: transform .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: .45; cursor: default; transform: none; }
.btn-quiet { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); padding: 10px 14px; min-height: 40px; font-size: .86rem; }
.btn-big { padding: 16px 24px; font-size: 1rem; }
:focus-visible { outline: 3px solid var(--s3); outline-offset: 2px; }

.hero { display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: center; padding: 40px 0 36px; }
.lede { font-size: 1.1rem; max-width: 52ch; margin: 18px 0 12px; }
.trial-line { margin: 0; font-size: .9rem; color: var(--muted); }
.drop { border: 1.5px dashed var(--line-strong); border-radius: 22px; background: var(--paper); padding: 34px 24px; text-align: center; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 6px; transition: border-color .15s, background .15s; }
.drop.over, .drop:hover { border-color: var(--ink); }
.drop-ic { color: var(--s6); margin-bottom: 4px; }
.drop-main { margin: 0; color: var(--ink); font-size: 1.05rem; }
.drop-sub { margin: 0 0 12px; font-size: .86rem; color: var(--muted); }

.work { background: var(--paper); border: 1px solid var(--line); border-radius: 22px; padding: 18px; margin-bottom: 40px; }
.filebar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.fileinfo { min-width: 0; display: flex; gap: 10px; align-items: baseline; }
.fname { color: var(--ink); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fdur { color: var(--muted); font: .85rem var(--mono); white-space: nowrap; }
.trim { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.trim label { display: inline-flex; align-items: center; gap: 6px; font-size: .92rem; }
.trim input { width: 5.4em; font: .95rem var(--mono); padding: 9px 8px; border: 1px solid var(--line-strong); border-radius: var(--r-sm); background: var(--bg); color: var(--ink); min-height: 42px; }
.trim-note { flex-basis: 100%; margin: 0; font-size: .85rem; color: var(--muted); }
.caution { font-size: .86rem; margin: 12px 0 16px; padding: 10px 12px; border-left: 3px solid var(--s6); background: color-mix(in srgb, var(--s6) 9%, transparent); border-radius: 0 var(--r-sm) var(--r-sm) 0; }
.caution strong { color: var(--ink); }

.roll-wrap { background: var(--stage); border-radius: var(--r); padding: 10px 10px 8px; position: relative; color: var(--stage-ink); }
.roll-head { display: flex; justify-content: space-between; align-items: center; padding: 0 2px 8px; }
.legend { display: flex; gap: 10px; font: 600 .78rem var(--mono); }
.legend span { display: inline-flex; align-items: center; gap: 4px; }
.legend span::before { content: ""; width: 9px; height: 9px; border-radius: 3px; background: var(--c); }
.zoom { display: flex; gap: 6px; }
.zoom button { width: 36px; height: 32px; border-radius: 8px; border: 1px solid var(--stage-line); background: var(--stage-2); color: var(--stage-ink); font-size: 1.1rem; cursor: pointer; }
.roll { overflow-x: auto; overflow-y: hidden; border-radius: 8px; -webkit-overflow-scrolling: touch; overscroll-behavior-x: contain; }
.roll canvas { display: block; height: 280px; touch-action: pan-x; cursor: crosshair; }
.roll-hint { margin: 6px 2px 0; font-size: .78rem; color: #8e999f; }
.busy { position: absolute; inset: 0; background: rgba(17,20,23,.86); border-radius: var(--r); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; font-size: .9rem; }
.busy[hidden] { display: none; }
.busy .bar { width: min(260px, 70%); height: 4px; background: var(--stage-line); border-radius: 4px; overflow: hidden; }
.busy .bar i { display: block; height: 100%; width: 0; background: var(--s6); transition: width .1s linear; }

.transport { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; padding: 14px 2px 6px; }
.play { width: 52px; height: 52px; border-radius: 50%; border: 0; background: var(--ink); color: var(--paper); display: grid; place-items: center; cursor: pointer; }
.clock { font: 600 1.05rem var(--mono); color: var(--ink); min-width: 6ch; }
.speed { display: inline-flex; align-items: center; gap: 8px; font-size: .92rem; }
.speed input { width: 130px; accent-color: var(--ink); }
.speed output { font: .9rem var(--mono); min-width: 4ch; color: var(--ink); }
.loopbox { display: inline-flex; align-items: center; gap: 6px; font-size: .92rem; }
.loopbox input { width: 18px; height: 18px; accent-color: var(--ink); }
.loopbox .muted { font: .82rem var(--mono); }

.results { display: grid; grid-template-columns: 1.1fr 1fr; gap: 16px; margin-top: 12px; }
.panel { border: 1px solid var(--line); border-radius: var(--r); padding: 14px; min-width: 0; background: var(--bg); }
.panel-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.count { font: .85rem var(--mono); color: var(--muted); font-weight: 400; }
.tablewrap { max-height: 380px; overflow: auto; border-radius: var(--r-sm); }
table.notes { width: 100%; border-collapse: collapse; font: .88rem var(--mono); }
.notes th { position: sticky; top: 0; background: var(--bg); text-align: left; font: 600 .76rem var(--sans); color: var(--muted); padding: 6px 6px; border-bottom: 1px solid var(--line); }
.notes td { padding: 7px 6px; border-bottom: 1px solid var(--line); color: var(--ink); white-space: nowrap; }
.notes tbody tr { cursor: pointer; }
.notes tbody tr:hover, .notes tbody tr.on { background: color-mix(in srgb, var(--s3) 14%, transparent); }
.notes .nn { font-weight: 700; }
.notes .nn i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 6px; background: var(--c, var(--muted)); vertical-align: 1px; }
.notes .flat { color: #3c88d6; } .notes .sharp { color: #c9572f; }
.notes .slur { color: var(--muted); font-size: .76rem; }
.notes .empty td { color: var(--muted); font-family: var(--sans); white-space: normal; cursor: default; }
.tab { font: .84rem/1.35 var(--mono); color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 12px; overflow-x: auto; margin: 0; min-height: 120px; }
.exports { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.exports .btn { padding: 11px 14px; font-size: .88rem; }
.keys { margin: 14px 2px 0; }

.how { display: grid; grid-template-columns: 1fr 2fr; gap: 24px; padding: 32px 0; border-top: 1px solid var(--line); }
.how dl { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 12px 20px; }
.how dt { color: var(--ink); font-weight: 600; }
.how dd { margin: 0; max-width: 62ch; }
.full { display: grid; grid-template-columns: 1.3fr 1fr; gap: 24px; align-items: center; padding: 28px; background: var(--stage); color: var(--stage-ink); border-radius: 22px; }
.full h2 { color: #fff; font-size: 1.5rem; }
.full p { max-width: 54ch; }
.full strong { color: #fff; }
.gets { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.gets li::before { content: ""; display: inline-block; width: 14px; height: 3px; border-radius: 2px; background: var(--s2); margin-right: 10px; vertical-align: 4px; }
.full-cta { display: flex; flex-direction: column; gap: 10px; align-items: stretch; }
.full .btn-big { background: #fff; color: var(--stage); border-color: #fff; }
.full .btn-quiet { color: #fff; border-color: #3a434a; }
.foot { max-width: 1180px; margin: 0 auto; padding: 20px 20px 90px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: .82rem; color: var(--muted); }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 24px; padding-top: 20px; }
  .results { grid-template-columns: 1fr; }
  .how { grid-template-columns: 1fr; }
  .full { grid-template-columns: 1fr; padding: 22px; }
}
@media (max-width: 520px) {
  main { padding: 0 14px 40px; }
  .top { padding: 12px 14px; }
  .work { padding: 12px; border-radius: 18px; }
  .how dl { grid-template-columns: 1fr; gap: 2px; }
  .how dd { margin-bottom: 12px; }
  .roll canvas { height: 240px; }
  .speed input { width: 110px; }
  .notes td, .notes th { padding: 6px 4px; }
  table.notes { font-size: .8rem; }
}
@media print {
  .top, .hero, .trim, .caution, .roll-wrap, .transport, .exports, .how, .full, .keys, .foot { display: none !important; }
  body, .work, .panel { background: #fff; color: #000; border: 0; }
  .results { display: block; } .tablewrap { max-height: none; overflow: visible; }
  .tab { white-space: pre-wrap; border: 0; }
}
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }
.drop-btns { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
footer.legal { max-width: 1100px; margin: 0 auto; padding: 4px 18px 32px; font-size: .78rem; line-height: 1.5; color: var(--muted); text-align: center; }
footer.legal a { color: inherit; display: inline-block; min-height: 24px; line-height: 24px; }