/* AllNutrition docs — minimal, readable, semantic. */
:root {
  --bg: #ffffff;
  --bg-soft: #f8faf9;
  --bg-code: #0f172a;
  --fg: #0f172a;
  --fg-muted: #475569;
  --fg-subtle: #64748b;
  --accent: #16704a;
  --accent-soft: #d8efe3;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --warn: #b45309;
  --warn-soft: #fef3c7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1115;
    --bg-soft: #0f1820;
    --bg-code: #020617;
    --fg: #e2e8f0;
    --fg-muted: #94a3b8;
    --fg-subtle: #64748b;
    --accent: #4ade80;
    --accent-soft: #14532d;
    --border: #1e293b;
    --border-strong: #334155;
    --warn: #fbbf24;
    --warn-soft: #422006;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

code, pre {
  font-family: "SF Mono", "Menlo", "Monaco", "Consolas", monospace;
  font-size: 0.9em;
}

p code, li code, td code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

pre {
  background: var(--bg-code);
  color: #e2e8f0;
  padding: 1rem 1.15rem;
  border-radius: 8px;
  overflow-x: auto;
  line-height: 1.5;
  font-size: 0.875rem;
}

pre code { background: transparent; border: none; padding: 0; color: inherit; }

/* ── Layout ─────────────────────────────────────────────────────────────── */

.layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; border-right: none; border-bottom: 1px solid var(--border); }
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  padding: 1.5rem 1.25rem;
  background: var(--bg-soft);
}

.sidebar h1 {
  font-size: 1rem;
  margin: 0 0 1.25rem 0;
  letter-spacing: -0.01em;
}

.sidebar h1 a { color: var(--fg); }

.sidebar h1 .tag {
  display: inline-block;
  margin-left: 0.5em;
  font-size: 0.7em;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
  vertical-align: middle;
}

.nav-section {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  margin: 1rem 0 0.4rem 0;
}

.sidebar nav ul {
  list-style: none;
  padding: 0;
  margin: 0 0 0.5rem 0;
}

.sidebar nav li a {
  display: block;
  padding: 0.3rem 0.6rem;
  margin: 0;
  border-radius: 6px;
  color: var(--fg-muted);
  font-size: 0.92rem;
}

.sidebar nav li a:hover {
  background: var(--bg);
  color: var(--fg);
  text-decoration: none;
}

.sidebar nav li a[aria-current="page"] {
  background: var(--bg);
  color: var(--accent);
  font-weight: 600;
}

main {
  max-width: 800px;
  padding: 2.5rem 2rem 5rem 2rem;
  width: 100%;
}

@media (max-width: 600px) {
  main { padding: 1.5rem 1.25rem 4rem 1.25rem; }
}

main h1 { font-size: 2rem; margin-top: 0; letter-spacing: -0.02em; }
main h2 { font-size: 1.35rem; margin-top: 2.5rem; letter-spacing: -0.01em; }
main h3 { font-size: 1.1rem; margin-top: 1.75rem; }

main p, main li { color: var(--fg); }
main hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }

.lede {
  font-size: 1.1rem;
  color: var(--fg-muted);
  margin-bottom: 2rem;
}

/* ── UI helpers ─────────────────────────────────────────────────────────── */

.callout {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  color: var(--fg);
  padding: 0.85rem 1rem;
  border-radius: 6px;
  margin: 1.5rem 0;
}

.callout--warn {
  border-color: var(--warn);
  background: var(--warn-soft);
  color: var(--fg);
}

.callout strong { display: block; margin-bottom: 0.25rem; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem 0;
  font-size: 0.93rem;
}

th, td {
  text-align: left;
  padding: 0.55rem 0.7rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  background: var(--bg-soft);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.endpoint {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: "SF Mono", monospace;
  font-size: 0.92rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  margin: 0.25rem 0;
}

.endpoint .method {
  color: white;
  background: var(--accent);
  padding: 0.05em 0.5em;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
  margin: 1.5rem 0;
}

.card {
  display: block;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.1rem;
  color: var(--fg);
  background: var(--bg-soft);
  transition: border-color 0.15s, transform 0.15s;
}

.card:hover {
  border-color: var(--accent);
  text-decoration: none;
  transform: translateY(-1px);
}

.card h3 {
  margin: 0 0 0.35rem 0;
  font-size: 1rem;
}

.card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--fg-muted);
}

.tabs {
  display: flex;
  gap: 0.25rem;
  margin: 1rem 0 0 0;
  border-bottom: 1px solid var(--border);
}

.tabs button {
  background: none;
  border: none;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--fg-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  font-family: inherit;
}

.tabs button[aria-selected="true"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.tabpanel { display: none; }
.tabpanel[data-active="true"] { display: block; }

footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--fg-subtle);
}

footer a { color: var(--fg-muted); }