/* Permadata — get · dark, sharp, typographic. One accent. System fonts only. */

:root {
  --bg: #0b0c0f;
  --bg-elev: #111318;
  --bg-code: #0f1114;
  --fg: #e9eaee;
  --muted: #9aa1ac;
  --dim: #6b727d;
  --accent: #53dcf4;
  --accent-ink: #0b0c0f;
  --border: #23262d;
  --border-strong: #2e323b;
  --radius: 6px;
  --maxw: 780px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ── header ─────────────────────────────────────────────── */
.site-head {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; }
.wordmark {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: var(--fg);
}
.wordmark:hover { text-decoration: none; }
.wordmark .accent { color: var(--accent); }
.site-head .nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  align-items: center;
  margin-left: auto;
  margin-right: 0;
}
.site-head .nav a {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 10px 2px;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  white-space: nowrap;
}
.site-head .nav a:hover { color: var(--fg); text-decoration: none; }
.back-home { font-family: var(--mono); font-size: 13px; margin: 32px 0 0; }
.site-head .tag { color: var(--dim); font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; }

/* ── hero ───────────────────────────────────────────────── */
.hero { padding: 72px 0 40px; }
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin: 0 0 20px;
}
.hero h1 {
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  font-weight: 800;
}
.lede {
  font-size: clamp(18px, 2.6vw, 22px);
  line-height: 1.5;
  color: var(--muted);
  margin: 0;
  max-width: 40em;
  font-weight: 400;
}
.lede em { color: var(--fg); font-style: normal; }
.browser-link { color: var(--muted); font-size: 15px; margin: 18px 0 0; }

/* ── specs strip ────────────────────────────────────────── */
.specs { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.specs .wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); }
.spec { background: var(--bg); padding: 22px 18px; }
.spec .k { display: block; font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dim); margin-bottom: 8px; }
.spec .v { font-family: var(--mono); font-size: 15px; color: var(--fg); word-break: break-word; }
.spec .v.small { font-size: 13px; }

/* ── sections ───────────────────────────────────────────── */
section.block { padding: 56px 0 8px; }
section.block:first-of-type { padding-top: 48px; }

h2 {
  font-size: clamp(22px, 3vw, 28px);
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  font-weight: 750;
}
h2 .num { color: var(--accent); font-family: var(--mono); font-size: 0.72em; margin-right: 10px; }
.sub { color: var(--muted); margin: 0 0 26px; max-width: 46em; }

h3 { font-size: 16px; margin: 0 0 8px; font-weight: 650; }

/* ── copy rows / code ───────────────────────────────────── */
.code-block, .copy-row {
  display: flex;
  align-items: stretch;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.copy-row { margin: 12px 0; }
.copy-row code, .code-block code {
  flex: 1;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.55;
  padding: 14px 16px;
  color: var(--fg);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}
.copy-btn {
  flex-shrink: 0;
  border: 0;
  border-left: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 0 18px;
  cursor: pointer;
  transition: color 120ms ease, background 120ms ease;
}
.copy-btn:hover { color: var(--fg); background: var(--border-strong); }
.copy-btn.copied { color: var(--accent-ink); background: var(--accent); }
.copy-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

.label { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dim); display: block; margin: 20px 0 4px; }
.label:first-child { margin-top: 0; }

/* ── download button ────────────────────────────────────── */
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  padding: 14px 22px;
  border-radius: var(--radius);
  border: 0;
  cursor: pointer;
  text-decoration: none;
}
.dl-btn:hover { text-decoration: none; filter: brightness(1.06); }
.dl-btn .meta { font-weight: 400; opacity: 0.65; font-size: 12px; }

/* ── steps ──────────────────────────────────────────────── */
.step { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.step:last-of-type { border-bottom: 0; }
.step .n {
  flex-shrink: 0;
  width: 34px; height: 34px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 14px; color: var(--accent);
}
.step .body { flex: 1; min-width: 0; }
.step p { margin: 0 0 10px; color: var(--muted); }
.step p strong { color: var(--fg); }
.step .code-block { margin: 10px 0 4px; }
.hint { color: var(--dim); font-size: 13px; margin: 6px 0 0; }

/* ── player ─────────────────────────────────────────────── */
.dropzone {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease;
  background: var(--bg-code);
}
.dropzone:hover, .dropzone.drag { border-color: var(--accent); background: var(--bg-elev); }
.dropzone .strong { color: var(--fg); font-weight: 600; }
.dropzone .mono { font-family: var(--mono); font-size: 13px; color: var(--dim); }
.dropzone input { display: none; }

#player { margin-top: 18px; }
#player video, #player audio, #player img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #000;
  display: block;
}
#player img { height: auto; }
#player-meta { font-family: var(--mono); font-size: 12.5px; color: var(--muted); margin: 10px 0 0; word-break: break-all; }
.local-note { color: var(--dim); font-size: 13.5px; margin-top: 14px; }

/* ── tables ─────────────────────────────────────────────── */
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 14px; min-width: 480px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--dim); font-weight: 600; background: var(--bg-code); }
tr:last-child td { border-bottom: 0; }
td.mono, td code { font-family: var(--mono); font-size: 13px; }
td .status { font-family: var(--mono); font-size: 12px; }
td .status.ok { color: var(--accent); }
td .status.na { color: var(--dim); }
.notes { list-style: none; padding: 0; margin: 18px 0 0; }
.notes li { position: relative; padding-left: 20px; margin: 8px 0; color: var(--muted); font-size: 14.5px; }
.notes li::before { content: "—"; position: absolute; left: 0; color: var(--dim); }

/* ── verification ───────────────────────────────────────── */
.hash-value { font-family: var(--mono); font-size: 15px; }

/* ── footer ─────────────────────────────────────────────── */
footer { border-top: 1px solid var(--border); margin-top: 64px; padding: 40px 0 64px; color: var(--dim); }
footer .mono { font-family: var(--mono); font-size: 13px; }
footer .row { margin: 8px 0; }
footer .col { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* ── docs page ──────────────────────────────────────────── */
.doc { padding: 48px 0 24px; }
.doc h1 { font-size: clamp(26px, 4vw, 34px); letter-spacing: -0.01em; margin: 0 0 6px; }
.doc h2 { font-size: 20px; margin-top: 44px; border-top: 1px solid var(--border); padding-top: 26px; }
.doc h3 { font-size: 15px; margin-top: 24px; }
.doc p, .doc li { color: var(--muted); }
.doc li { margin: 6px 0; }
.doc .code-block, .doc .copy-row { margin: 14px 0; }
.doc code.inline { font-family: var(--mono); font-size: 13px; background: var(--bg-code); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; color: var(--fg); }
.doc blockquote {
  margin: 16px 0; padding: 12px 16px;
  border-left: 3px solid var(--accent);
  background: var(--bg-code); border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--muted);
}
.doc hr { border: 0; border-top: 1px solid var(--border); margin: 32px 0; }
.doc a.back { font-family: var(--mono); font-size: 13px; }

/* ── responsive ─────────────────────────────────────────── */
@media (max-width: 720px) {
  .site-head .nav { order: 3; width: 100%; margin-left: 0; gap: 4px 14px; }
  .site-head .nav a { padding: 8px 2px; min-height: 44px; }
  .site-head .tag { display: none; }
}
@media (max-width: 620px) {
  .specs .wrap { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 32px; }
  section.block { padding: 40px 0 4px; }
  .copy-btn { padding: 0 14px; }
  .step { gap: 14px; }
  .site-head .nav { gap: 14px; margin-right: 0; }
  .site-head .nav a { font-size: 12px; }
}
@media (max-width: 420px) {
  .site-head .tag { display: none; }
  .site-head .nav { margin-right: 0; }
}