:root {
  --bg: #09090b;
  --bg-soft: #0c0c0f;
  --panel: #101014;
  --line: #26262c;
  --line-soft: #1a1a1f;
  --fg: #e8e8ec;
  --muted: #a3a3ad;
  --dim: #7a7a84;
  --accent: #818cf8;
  --ok: #4ade80;
  --bad: #f87171;
  --warn: #fbbf24;
  --radius: 8px;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(129, 140, 248, 0.25); }

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

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.02em; margin: 0; color: var(--fg); }

code, kbd, pre { font-family: var(--mono); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--fg);
  color: var(--bg);
  padding: 0.6rem 1rem;
  border-radius: 0 0 6px 0;
  font-weight: 600;
  z-index: 99;
}
.skip:focus { left: 0; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; }

/* ---------- header ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(9, 9, 11, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.site-nav-in { display: flex; align-items: center; gap: 1rem; height: 60px; }
.brand { display: flex; align-items: center; gap: 0.6rem; color: var(--fg); font-weight: 650; font-size: 0.95rem; }
.brand:hover { text-decoration: none; }
.mark {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--panel);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--fg);
}
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 0.15rem; }
/* Links and the disabled entries share one box model, otherwise the disabled
   spans get no padding and read as a single run of words. */
.nav-links a,
.nav-links .soon {
  color: var(--muted);
  font-size: 0.88rem;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
}
.nav-links a:hover { color: var(--fg); text-decoration: none; }
.nav-links a.active { color: var(--fg); background: rgba(255, 255, 255, 0.04); }
.nav-links .soon { color: var(--dim); cursor: default; }
.nav-links .soon:hover { color: var(--dim); }
.nav-ver {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  margin-left: 0.4rem;
}
@media (max-width: 720px) {
  .nav-links a, .nav-links .soon { display: none; }
  .nav-links a.active { display: block; }
}

/* ---------- page ---------- */
.page { padding: 2.5rem 0 4rem; }
.page-head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1.75rem; }
.page-head h1 { font-size: 1.6rem; font-weight: 650; letter-spacing: -0.03em; }
.page-head p { color: var(--muted); font-size: 0.94rem; margin: 0.4rem 0 0; }
.local-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  white-space: nowrap;
}
.local-chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }

/* ---------- upload ---------- */
.dropzone {
  border: 1.5px dashed var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.dropzone:hover, .dropzone.drag { border-color: var(--accent); background: rgba(129, 140, 248, 0.04); }
.dropzone .dz-title { font-size: 1.02rem; font-weight: 600; }
.dropzone .dz-or { color: var(--dim); font-size: 0.85rem; margin: 0.6rem 0; }
.dropzone input[type="file"] {
  position: absolute;
  width: 1px; height: 1px; margin: -1px;
  clip: rect(0 0 0 0); overflow: hidden; white-space: nowrap;
}
.dz-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  background: var(--fg);
  color: var(--bg);
  border: 1px solid transparent;
  cursor: pointer;
}
.dz-btn:hover { background: #d4d4d8; }
.privacy-note {
  margin-top: 1.1rem;
  font-size: 0.84rem;
  color: var(--dim);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
/* Text-and-border tag instead of an emoji: renders identically everywhere and
   does not depend on an installed emoji font. */
.privacy-tag {
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.05rem 0.4rem;
  white-space: nowrap;
}

/* ---------- file bar ---------- */
.filebar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 0.85rem 1rem;
  margin-top: 1.25rem;
}
.filebar .fname { font-family: var(--mono); font-size: 0.85rem; color: var(--fg); word-break: break-all; }
.filebar .fmeta { font-family: var(--mono); font-size: 0.74rem; color: var(--dim); }
.filebar .status { margin-left: auto; font-family: var(--mono); font-size: 0.74rem; color: var(--muted); display: flex; align-items: center; gap: 0.5rem; }
.filebar .status .spinner {
  width: 13px; height: 13px; border-radius: 50%;
  border: 2px solid var(--line); border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.filebar .status.ok { color: var(--ok); }
.filebar .status.err { color: var(--bad); }
.reset-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
}
.reset-btn:hover { color: var(--fg); border-color: #3f3f46; }

/* ---------- results ---------- */
.results { margin-top: 1.5rem; }
.results.hidden { display: none; }
.result-section { border: 1px solid var(--line-soft); border-radius: var(--radius); margin-bottom: 1rem; overflow: hidden; }
.result-section > h2 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.result-section > h2 .count { color: var(--dim); font-family: var(--mono); font-size: 0.72rem; }
.r-table { width: 100%; border-collapse: collapse; }
.r-table th, .r-table td {
  text-align: left;
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
.r-table th { color: var(--dim); font-weight: 500; width: 12rem; font-family: var(--mono); }
.r-table td { color: var(--fg); font-family: var(--mono); overflow-wrap: anywhere; }
/* Only the 64-char digest needs mid-token breaking; other values ("198 B (198
   bytes)") must not split inside a word. */
.r-table td.hash { word-break: break-all; }
.r-table tr:last-child td, .r-table tr:last-child th { border-bottom: 0; }
.kv-row { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.kv-row .kv {
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  background: var(--bg-soft);
  padding: 0.4rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--fg);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.kv .k { color: var(--dim); }

/* ---------- contract specification ---------- */
/* Signatures are short, so a full-width column on a wide viewport is mostly
   empty space. Cap the whole group — heading, count, divider and entries share
   one right edge, so the narrower measure reads as deliberate. Below the cap the
   group shrinks normally, so narrow viewports are unaffected. */
.spec-group {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  max-width: 46rem;
}
.spec-group:last-child { border-bottom: 0; }
.spec-group > h3 {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--dim);
  margin: 0 0 0.55rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.spec-group > h3 .count {
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: none;
  letter-spacing: 0;
}
.spec-list { display: grid; gap: 0.4rem; }
.spec-item {
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  background: var(--bg-soft);
  padding: 0.5rem 0.7rem;
}
/* An entry with no detail rows does not need card chrome around a single name. */
.spec-item.is-bare {
  border-color: transparent;
  background: none;
  padding: 0.15rem 0.7rem;
}
.spec-name {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--fg);
  overflow-wrap: anywhere;
}
.spec-kind {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--dim);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.05rem 0.4rem;
  margin-left: 0.5rem;
  white-space: nowrap;
}
.params { margin: 0.4rem 0 0; display: grid; gap: 0.2rem; }
.param {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  padding-left: 0.9rem;
  font-family: var(--mono);
  font-size: 0.76rem;
}
.param dt { color: var(--muted); overflow-wrap: anywhere; }
.param dt::after { content: ":"; color: var(--dim); }
.param dd { margin: 0; color: var(--accent); overflow-wrap: anywhere; }
/* Return type: separated from the inputs above and visually de-emphasised. */
.param.is-meta {
  margin-top: 0.3rem;
  padding-top: 0.3rem;
  border-top: 1px solid var(--line-soft);
}
.param.is-meta dt { color: var(--dim); }
.param.is-meta dt::after { content: ""; }
.param.is-meta dd { color: var(--muted); }
.param.is-meta dd::before { content: "→ "; color: var(--dim); }
.spec-doc {
  margin: 0.35rem 0 0;
  padding-left: 0.9rem;
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--dim);
}
/* A doc attached to one parameter, indented past the parameter row itself. */
.spec-doc.param-doc { margin: 0.05rem 0 0.15rem; padding-left: 1.8rem; font-size: 0.73rem; }
.spec-members { padding-left: 0.9rem; margin: 0.4rem 0 0; list-style: none; }
.spec-members li { font-family: var(--mono); font-size: 0.76rem; color: var(--muted); overflow-wrap: anywhere; }
.spec-none { margin: 0; font-family: var(--mono); font-size: 0.76rem; color: var(--dim); }

.copy-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 0.12rem 0.5rem;
  border-radius: 5px;
  cursor: pointer;
  margin-left: 0.5rem;
}
.copy-btn:hover { color: var(--fg); border-color: #3f3f46; }

/* ---------- error ---------- */
.error-box {
  border: 1px solid rgba(248, 113, 113, 0.35);
  background: rgba(248, 113, 113, 0.06);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin-top: 1.25rem;
  color: var(--fg);
  font-size: 0.9rem;
}
.error-box .err-title { font-weight: 600; color: var(--bad); font-family: var(--mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; }
.error-box p { margin: 0.4rem 0 0; color: var(--muted); }

/* ---------- cli / footer ---------- */
.cli-note {
  margin-top: 2.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  padding: 1.4rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.cli-note h2 { font-size: 0.95rem; }
.cli-note p { color: var(--muted); font-size: 0.86rem; margin: 0.3rem 0 0; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.88rem;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary { background: var(--fg); color: var(--bg); }
.btn-primary:hover { background: #d4d4d8; text-decoration: none; }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--fg); }
.btn-ghost:hover { border-color: #3f3f46; text-decoration: none; }

.site-foot {
  border-top: 1px solid var(--line-soft);
  padding: 1.6rem 0 2.2rem;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.74rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}