:root {
  --bg: #f6f4ef; --fg: #1b1d1c; --muted: #5f6461; --line: #dcd8cf; --card: #ffffff;
  --accent: #1f5c43; --accent-fg: #ffffff; --danger: #b3261e; --warn-bg: #fff4e0; --warn-line: #e8c58a; --ok: #1f5c43;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141615; --fg: #ecebe6; --muted: #a2a7a3; --line: #2e3230; --card: #1c1f1e;
    --accent: #5fbf92; --accent-fg: #0d1a14; --danger: #ff8a80; --warn-bg: #2a2416; --warn-line: #6b5726; --ok: #5fbf92; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 24px 20px 64px; }
.top { max-width: 720px; margin: 0 auto; padding: 16px 20px 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--fg); text-decoration: none; letter-spacing: -0.01em; }
nav { display: flex; align-items: center; gap: 14px; }
.usage { color: var(--muted); font-size: 14px; }
h1 { font-size: 28px; line-height: 1.2; margin: 8px 0 12px; letter-spacing: -0.02em; }
.welcome h1 { font-size: 36px; margin-top: 32px; }
.hero { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius); background: #05060a; margin-top: 16px; }
h2 { font-size: 18px; margin: 0 0 8px; }
section { border-top: 1px solid var(--line); padding: 20px 0 8px; margin-top: 12px; }
.lede { font-size: 18px; color: var(--muted); max-width: 34em; }
.facts { list-style: none; padding: 0; margin: 28px 0; display: grid; gap: 10px; }
.facts li { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.small, .hint { color: var(--muted); font-size: 14px; }
a { color: var(--accent); }
button { font: inherit; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--fg); cursor: pointer; }
button:hover:not(:disabled) { border-color: var(--muted); }
button:disabled { opacity: .55; cursor: default; }
button.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 600; }
button.danger { color: var(--danger); border-color: var(--danger); background: transparent; }
button.link { background: none; border: 0; padding: 4px 0; color: var(--accent); }
button.link.danger { color: var(--danger); }
button:focus-visible, input:focus-visible, textarea:focus-visible, a:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent); outline-offset: 2px; }
.back { margin-bottom: 8px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin: 14px 0; }
.row.end { justify-content: flex-end; }
.stack { display: grid; gap: 10px; max-width: 420px; margin: 18px 0; }
label { display: block; font-weight: 600; margin: 14px 0 6px; }
.check label { display: inline; font-weight: 400; }
input[type=text], textarea { width: 100%; font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--fg); }
.row input[type=text] { width: auto; flex: 1 1 200px; }
input.title { font-size: 20px; font-weight: 600; margin: 8px 0 10px; }
textarea { resize: vertical; min-height: 260px; line-height: 1.6; }
.list { display: grid; gap: 8px; margin: 12px 0; }
.item { display: grid; grid-template-columns: 1fr auto; text-align: left; gap: 2px 10px; width: 100%; padding: 12px 14px; border-radius: var(--radius); }
.item.static { background: var(--card); border: 1px solid var(--line); }
.item-title { font-weight: 600; overflow-wrap: anywhere; display: flex; gap: 8px; align-items: center; }
.item-sub { grid-column: 1; color: var(--muted); font-size: 14px; }
.item > .pill, .item > button { grid-column: 2; grid-row: 1 / span 2; align-self: center; }
.pill { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 99px; border: 1px solid var(--accent); color: var(--accent); }
.empty { color: var(--muted); padding: 28px 0; }
.status { color: var(--muted); }
.status.error { color: var(--danger); }
.status.ok { color: var(--ok); }
.rk { font: 600 20px/1.5 ui-monospace, "SF Mono", Menlo, Consolas, monospace; letter-spacing: .04em; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; overflow-wrap: anywhere; user-select: all; }
.code { font: 700 32px/1.2 ui-monospace, "SF Mono", Menlo, Consolas, monospace; letter-spacing: .08em; margin: 8px 0 16px; }
.qr { width: 220px; height: 220px; image-rendering: pixelated; border-radius: 8px; border: 1px solid var(--line); }
.warn { background: var(--warn-bg); border: 1px solid var(--warn-line); border-radius: var(--radius); padding: 4px 16px; margin: 18px 0; }
.public { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 16px; margin: 20px 0; }
.publink { overflow-wrap: anywhere; }
.filename { overflow-wrap: anywhere; }
.danger-zone { margin-top: 28px; }
.hidden, .sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: grid; place-items: center; padding: 20px; z-index: 10; }
.modal-box { background: var(--bg); color: var(--fg); border-radius: 14px; padding: 20px 22px 8px; max-width: 440px; width: 100%; box-shadow: 0 10px 40px rgba(0,0,0,.25); }
.modal-box h2 { font-size: 20px; }
@media (max-width: 520px) { h1 { font-size: 24px; } .welcome h1 { font-size: 30px; } .code { font-size: 26px; } }
.viewer { margin: 16px 0; }
.player { display: block; width: 100%; max-width: 100%; max-height: 70vh; border-radius: var(--radius); background: #000; }
audio.player { background: none; max-height: none; }
img.player { width: auto; height: auto; background: none; }