/* VitalCheck API — Self-contained styles (no CDN dependencies) */

:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-card-hover: #1c2128;
  --bg-input: #0d1117;
  --border: #30363d;
  --border-focus: #388bfd;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --text-dim: #6e7681;
  --accent: #00c9a7;
  --accent-dark: #009e84;
  --accent-glow: rgba(0, 201, 167, 0.15);
  --danger: #f85149;
  --warning: #d29922;
  --success: #3fb950;
  --blue: #388bfd;
  --purple: #bc8cff;
  --tag-post: #1f4b3a;
  --tag-post-text: #3fb950;
  --tag-get: #1b3461;
  --tag-get-text: #79c0ff;
  --radius: 8px;
  --radius-sm: 4px;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --font-mono: 'SFMono-Regular', 'Consolas', 'Liberation Mono', 'Menlo', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --transition: 0.15s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

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

/* ─── Layout ─────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 64px 0; }

/* ─── Nav ─────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo-icon {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), #007cf0);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}
.nav-logo-text { font-weight: 700; font-size: 18px; letter-spacing: -0.3px; }
.nav-links { display: flex; gap: 4px; }
.nav-links a {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  background: var(--bg-card);
  text-decoration: none;
}

/* ─── Hero ────────────────────────────────────────── */
.hero {
  padding: 96px 0 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 400px;
  background: radial-gradient(ellipse, rgba(0,201,167,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid rgba(0,201,167,0.3);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(0,201,167,0.08);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.hero-title .accent { color: var(--accent); }
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover { background: var(--accent-dark); text-decoration: none; }
.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-secondary:hover { background: var(--bg-card); border-color: var(--text-muted); text-decoration: none; }
.btn-run {
  background: var(--accent);
  color: #000;
  padding: 9px 20px;
  font-size: 13px;
}
.btn-run:hover { background: var(--accent-dark); }
.btn-run:disabled { opacity: 0.5; cursor: not-allowed; }

.stats-row {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.stat-chip {
  text-align: center;
  padding: 16px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.stat-chip .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  display: block;
}
.stat-chip .label { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

/* ─── Section Headers ─────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}
.section-header p { color: var(--text-muted); max-width: 500px; margin: 0 auto; }

/* ─── Endpoint Reference ─────────────────────────── */
.endpoints-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: start;
}
.endpoints-nav {
  position: sticky;
  top: 72px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
}
.endpoints-nav-item {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: all var(--transition);
}
.endpoints-nav-item:hover, .endpoints-nav-item.active {
  background: var(--accent-glow);
  color: var(--accent);
}
.endpoints-nav-group { font-size: 11px; font-weight: 700; color: var(--text-dim); text-transform: uppercase; padding: 8px 12px 4px; letter-spacing: 0.8px; }

.endpoint-group { margin-bottom: 40px; }
.endpoint-group-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.endpoint-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 12px;
  transition: border-color var(--transition);
}
.endpoint-card:hover { border-color: var(--text-dim); }
.endpoint-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  user-select: none;
}
.endpoint-header:hover { background: var(--bg-card-hover); }
.method-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.method-post { background: var(--tag-post); color: var(--tag-post-text); }
.method-get  { background: var(--tag-get);  color: var(--tag-get-text); }
.endpoint-path { font-family: var(--font-mono); font-size: 13px; font-weight: 500; flex: 1; }
.endpoint-desc { color: var(--text-muted); font-size: 13px; flex: 2; }
.endpoint-chevron { color: var(--text-dim); font-size: 12px; transition: transform var(--transition); }
.endpoint-card.open .endpoint-chevron { transform: rotate(90deg); }
.endpoint-body { display: none; padding: 0 16px 16px; border-top: 1px solid var(--border); }
.endpoint-card.open .endpoint-body { display: block; }

.endpoint-body h4 { font-size: 12px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin: 14px 0 8px; }
.field-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.field-table th { color: var(--text-dim); font-size: 11px; font-weight: 600; text-transform: uppercase; text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); }
.field-table td { padding: 7px 8px; border-bottom: 1px solid rgba(48,54,61,0.5); vertical-align: top; }
.field-table tr:last-child td { border-bottom: none; }
.field-name { font-family: var(--font-mono); color: var(--blue); }
.field-type { font-family: var(--font-mono); color: var(--purple); }
.field-req { font-size: 11px; font-weight: 700; }
.field-req.yes { color: var(--danger); }
.field-req.no  { color: var(--text-dim); }
.field-desc { color: var(--text-muted); }

/* ─── Code blocks ─────────────────────────────────── */
.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
  color: var(--text);
}
.code-block .key   { color: var(--blue); }
.code-block .str   { color: #a5d6ff; }
.code-block .num   { color: #79c0ff; }
.code-block .bool  { color: var(--accent); }
.code-block .null  { color: var(--text-dim); }
.code-label { font-size: 11px; font-weight: 700; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }

/* ─── Playground ─────────────────────────────────── */
.playground-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.playground-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.playground-toolbar label { font-size: 13px; font-weight: 600; color: var(--text-muted); flex-shrink: 0; }
.endpoint-select {
  flex: 1;
  min-width: 200px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--font-mono);
  appearance: none;
  cursor: pointer;
}
.endpoint-select:focus { outline: none; border-color: var(--border-focus); }
.playground-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.playground-pane { padding: 16px; }
.playground-pane + .playground-pane { border-left: 1px solid var(--border); }
.playground-pane-label { font-size: 11px; font-weight: 700; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; display: flex; justify-content: space-between; align-items: center; }
.request-textarea {
  width: 100%;
  min-height: 280px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  padding: 12px;
  resize: vertical;
  transition: border-color var(--transition);
}
.request-textarea:focus { outline: none; border-color: var(--border-focus); }
.response-area {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  min-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.response-area.error { border-color: var(--danger); color: var(--danger); }
.response-area.success { border-color: rgba(63,185,80,0.3); }
.status-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
}
.status-200 { background: rgba(63,185,80,0.15); color: var(--success); }
.status-4xx, .status-5xx { background: rgba(248,81,73,0.15); color: var(--danger); }

/* ─── Models Table ─────────────────────────────────── */
.models-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.models-table th {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 2px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.models-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.models-table tr:last-child td { border-bottom: none; }
.models-table tr:hover td { background: var(--bg-card-hover); }
.model-name { font-family: var(--font-mono); color: var(--blue); font-weight: 600; }
.accuracy-bar {
  display: flex;
  align-items: center;
  gap: 8px;
}
.accuracy-bar .bar-track {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  flex: 1;
  overflow: hidden;
}
.accuracy-bar .bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), #007cf0);
  transition: width 0.6s ease;
}
.accuracy-val { font-size: 12px; font-weight: 700; color: var(--text); min-width: 36px; }

/* ─── Footer ─────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-inner {
  display: flex;
  gap: 32px;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
}
.footer-disclaimer {
  flex: 2;
  min-width: 280px;
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.7;
  background: rgba(248,81,73,0.06);
  border: 1px solid rgba(248,81,73,0.2);
  border-radius: var(--radius);
  padding: 12px 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 8px; flex-shrink: 0; }
.footer-links a { font-size: 13px; color: var(--text-muted); }
.footer-links a:hover { color: var(--text); }

/* ─── Scrollbar ──────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ─── Responsive ─────────────────────────────────── */
@media (max-width: 900px) {
  .endpoints-layout { grid-template-columns: 1fr; }
  .endpoints-nav { position: static; }
  .playground-body { grid-template-columns: 1fr; }
  .playground-pane + .playground-pane { border-left: none; border-top: 1px solid var(--border); }
}
@media (max-width: 600px) {
  .hero { padding: 64px 0 48px; }
  .stats-row { gap: 12px; }
  .stat-chip { padding: 12px 20px; }
  .endpoint-desc { display: none; }
  .nav-links { display: none; }
}

/* ─── Loading spinner ────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(0,201,167,0.3);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

/* ─── Utilities ──────────────────────────────────── */
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }