/* EOS API Doc 门户 · 设计系统
   间距 4px 网格 · 双主题 prefers-color-scheme · 零构建 */

:root {
  /* color */
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --ink: #111827;
  --ink-2: #374151;
  --muted: #6b7280;
  --faint: #9ca3af;
  --line: #e5e7eb;
  --line-strong: #d1d5db;
  --accent: #2563eb;
  --accent-soft: #eff6ff;
  --accent-ink: #ffffff;
  --danger: #b91c1c;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-md: 0 8px 24px rgba(16, 24, 40, 0.08);
  --code-bg: #0f172a;
  --code-ink: #e2e8f0;
  --get: #047857;
  --get-bg: #ecfdf5;
  --post: #1d4ed8;
  --post-bg: #eff6ff;
  --put: #b45309;
  --put-bg: #fffbeb;
  --patch: #6d28d9;
  --patch-bg: #f5f3ff;
  --delete: #b91c1c;
  --delete-bg: #fef2f2;
  --other: #4b5563;
  --other-bg: #f3f4f6;

  /* type */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Consolas",
    "JetBrains Mono", monospace;

  /* layout */
  --wrap: 1040px;
  --pad-x: 24px;
  --header-h: 60px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --surface: #111827;
    --surface-2: #0f172a;
    --ink: #f3f4f6;
    --ink-2: #d1d5db;
    --muted: #9ca3af;
    --faint: #6b7280;
    --line: #1f2937;
    --line-strong: #374151;
    --accent: #60a5fa;
    --accent-soft: #1e3a5f;
    --accent-ink: #0b1220;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.45);
    --code-bg: #020617;
    --code-ink: #cbd5e1;
    --get-bg: #064e3b33;
    --post-bg: #1e3a5f33;
    --put-bg: #78350f33;
    --patch-bg: #4c1d9533;
    --delete-bg: #7f1d1d33;
    --other-bg: #1f2937;
  }
}

*,
*::before,
*::after { box-sizing: border-box; }

html { height: 100%; }

body {
  margin: 0;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

/* ── layout ─────────────────────────────────────── */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* ── header ─────────────────────────────────────── */

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid var(--line);
}

.top .wrap {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 650;
  font-size: 15px;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

.brand-tag {
  margin-left: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.top nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
}

.top nav a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
}
.top nav a:hover {
  color: var(--ink);
  background: var(--surface-2);
  text-decoration: none;
}
.top nav a.on {
  color: var(--accent);
  background: var(--accent-soft);
}

/* ── main ───────────────────────────────────────── */

main {
  flex: 1;
  width: 100%;
  padding: 32px 0 56px;
}

main > .wrap > :first-child { margin-top: 0; }

/* page title block */
.page-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.crumb {
  margin: 0;
  font-size: 13px;
}
.crumb a {
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.crumb a:hover { color: var(--accent); }

h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.25;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h1 .sub {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--muted);
}

h1 small {
  margin-left: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--faint);
  letter-spacing: 0.02em;
  text-transform: none;
}

.page-desc {
  margin: 0;
  max-width: 62ch;
  color: var(--ink-2);
  font-size: 14px;
}

h2 {
  margin: 36px 0 14px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

h2 small {
  font-size: 12px;
  font-weight: 500;
  color: var(--faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
}
.meta-line span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-line span::before {
  content: "";
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--faint);
}
.meta-line span:first-child::before { display: none; }

/* ── cards / project grid ───────────────────────── */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px 20px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.card:hover {
  text-decoration: none;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.card-head strong {
  font-size: 16px;
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.chip {
  flex-shrink: 0;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
}

.card .desc {
  margin: 0;
  flex: 1;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
  min-height: 2.9em;
}

.card .meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 12px;
}
.card .meta .count {
  color: var(--accent);
  font-weight: 600;
}

/* ── endpoint list ──────────────────────────────── */

.group {
  margin-bottom: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.group > h2 {
  margin: 0;
  padding: 14px 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  letter-spacing: 0.01em;
}
.group > h2 small {
  font-size: 11px;
  color: var(--faint);
  font-weight: 500;
}

.ep-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ep-list li + li { border-top: 1px solid var(--line); }

.ep-list a {
  display: grid;
  grid-template-columns: 72px minmax(160px, 240px) 1fr;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  color: inherit;
  text-decoration: none;
  transition: background 0.12s ease;
}
.ep-list a:hover {
  background: var(--accent-soft);
  text-decoration: none;
}

.ep-list .path {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ep-list .summary {
  color: var(--muted);
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* method badge */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  height: 22px;
  padding: 0 8px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.m-get    { background: var(--get-bg);    color: var(--get); }
.m-post   { background: var(--post-bg);   color: var(--post); }
.m-put    { background: var(--put-bg);    color: var(--put); }
.m-patch  { background: var(--patch-bg);  color: var(--patch); }
.m-delete { background: var(--delete-bg); color: var(--delete); }
.m-other  { background: var(--other-bg);  color: var(--other); }

/* ── endpoint detail ────────────────────────────── */

.ep-hero {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ep-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.ep-title-row .path {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  word-break: break-all;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.panel > h2 {
  margin: 0;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
  font-size: 13px;
}
.panel > h2 small {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.panel-body { padding: 8px 4px 12px; }

/* tables */
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.tbl th,
.tbl td {
  padding: 10px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}
.tbl tr:last-child td { border-bottom: none; }
.tbl th {
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.tbl td code {
  font-size: 12.5px;
  color: var(--ink);
}
.req-yes { color: var(--danger); font-weight: 600; font-size: 12px; }
.req-no  { color: var(--faint); font-size: 12px; }

/* schema tree */
.schema-tree {
  padding: 4px 8px 8px;
}

.nodes {
  list-style: none;
  margin: 0;
  padding-left: 18px;
  border-left: 1px solid var(--line);
}
.schema-tree > .nodes {
  padding-left: 8px;
  border-left: none;
}
.nodes > li { padding: 4px 0 4px 8px; }

.node {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}
.nodes > li > .node:hover { background: var(--surface-2); }

.n-name {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
}
.n-type {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}
.n-req {
  font-size: 11px;
  font-weight: 600;
  color: var(--danger);
  background: var(--delete-bg);
  padding: 1px 6px;
  border-radius: 4px;
}
.n-desc {
  color: var(--muted);
  font-size: 12.5px;
}
.n-ex {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
  background: var(--surface-2);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 4px;
  max-width: 36ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* responses */
.resp {
  padding: 14px 18px 16px;
}
.resp + .resp { border-top: 1px solid var(--line); }

.resp-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.code-badge {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 9px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  background: var(--accent-soft);
  color: var(--accent);
}

.resp-desc {
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 500;
}

.resp-types {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
}

pre.code {
  margin: 0;
  padding: 14px 16px;
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: var(--radius);
  overflow: auto;
  font-size: 12.5px;
  line-height: 1.55;
  max-height: 420px;
}

/* empty state */
.empty {
  padding: 40px 28px;
  text-align: center;
  background: var(--surface);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  color: var(--muted);
}
.empty p { margin: 0 0 8px; }
.empty pre {
  display: inline-block;
  margin: 12px 0 0;
  text-align: left;
}

/* ── footer ─────────────────────────────────────── */

.foot {
  margin-top: auto;
  border-top: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
}
.foot .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 16px var(--pad-x);
}

/* ── utilities / responsive ─────────────────────── */

.muted { color: var(--muted); }
.faint { color: var(--faint); }

@media (max-width: 720px) {
  :root { --pad-x: 16px; }
  main { padding: 24px 0 40px; }
  h1 { font-size: 22px; }
  .ep-title-row .path { font-size: 16px; }
  .ep-list a {
    grid-template-columns: 64px 1fr;
    gap: 10px 12px;
  }
  .ep-list .summary {
    grid-column: 1 / -1;
    white-space: normal;
  }
  .brand-tag { display: none; }
  .resp-types { margin-left: 0; width: 100%; }
}