/* Self-hosted variable fonts — one woff2 per family covers every weight,
   so the whole page needs just two same-origin font requests and no
   third-party (Google Fonts) connection. */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-display: swap;
  font-weight: 300 700;
  src: url('./fonts/space-grotesk-latin.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 100 800;
  src: url('./fonts/jetbrains-mono-latin.woff2') format('woff2');
}

:root {
  --bg: #0a0b0f; --bg-soft: #0f1117; --card: #13151d; --card-2: #1a1d27; --border: #262a37;
  --text: #e9ebf2; --muted: #888f9f; --accent: #e74c3c; --accent-soft: rgba(231, 76, 60, .13);
  --accent-2: #ff7a5c; --get: #34c08a; --post: #f0a14b; --grid: rgba(255, 255, 255, .045);
  --glow: rgba(231, 76, 60, .45);
}

.light {
  --bg: #f6f4f1; --bg-soft: #fffdfb; --card: #ffffff; --card-2: #f1eee9; --border: #e6e0d8;
  --text: #191b22; --muted: #6a7080; --accent: #e74c3c; --accent-soft: rgba(231, 76, 60, .10);
  --accent-2: #d8442f; --get: #1f9d63; --post: #cf7a1f; --grid: rgba(0, 0, 0, .05);
  --glow: rgba(231, 76, 60, .30);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }

::selection { background: var(--accent); color: #fff; }

.app {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  position: relative;
  /* `clip` keeps the hero glows from causing horizontal scroll without
     creating a scroll container — `hidden` here would break the sticky nav. */
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

/* Theme cross-fade — scoped so it doesn't touch the float / underline animations. */
.app *,
.app *::before,
.app *::after {
  transition: background-color .4s ease, border-color .4s ease, color .3s ease, fill .4s ease;
}

/* Decorative grid backdrop, masked to a top-centred glow. */
.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 100% 36px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 36px 100%;
  -webkit-mask-image: radial-gradient(circle at 50% -5%, #000 30%, transparent 72%);
  mask-image: radial-gradient(circle at 50% -5%, #000 30%, transparent 72%);
}

.content { position: relative; z-index: 1; }
.container { width: min(1000px, 92vw); margin: 0 auto; }

/* ---------- Hero ---------- */
.hero { padding: 7rem 0 3.8rem; text-align: center; position: relative; overflow: hidden; }

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(30px);
  pointer-events: none;
  background: radial-gradient(circle, var(--accent-soft), transparent 65%);
}
.hero-glow.a {
  top: -120px; left: 50%; width: 520px; height: 520px; margin-left: -380px;
  animation: floatA 14s ease-in-out infinite;
}
.hero-glow.b {
  top: -40px; left: 50%; width: 460px; height: 460px; margin-left: -60px;
  filter: blur(34px); animation: floatB 17s ease-in-out infinite;
}

@keyframes floatA { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(60px, -40px); } }
@keyframes floatB { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(-50px, 40px); } }

.hero-inner { width: min(1000px, 92vw); margin: 0 auto; position: relative; }

.eyebrow {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .34rem 1rem;
  background: var(--accent-soft);
}

.title {
  font-size: clamp(3.2rem, 10vw, 6rem);
  margin: 1.5rem 0 .5rem;
  font-weight: 700;
  letter-spacing: -.04em;
  line-height: 1;
  background: linear-gradient(135deg, var(--text) 8%, var(--accent) 56%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead { max-width: 640px; margin: 0 auto; color: var(--muted); font-size: 1.15rem; }
.lead strong { color: var(--text); font-weight: 600; }

.hero-badges { display: flex; gap: .5rem; justify-content: center; flex-wrap: wrap; margin: 2rem 0 1.8rem; }
.hero-badges img { height: 22px; }

.cta-row { display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  padding: .78rem 1.7rem;
  border-radius: 11px;
  font-weight: 600;
  font-size: .96rem;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #c0392b);
  color: #fff;
  box-shadow: 0 12px 34px -8px var(--glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 44px -8px var(--glow); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--accent); }

/* ---------- Sticky nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  width: min(1000px, 92vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav-links { display: flex; gap: 1.9rem; overflow-x: auto; padding: .9rem 0; }

.nav-link {
  position: relative;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 600;
  white-space: nowrap;
  padding: .2rem 0;
  text-decoration: none;
}
.nav-link:hover { color: var(--text); }
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.nav-link.active::after { transform: scaleX(1); }

.theme-toggle {
  display: flex;
  align-items: center;
  gap: .6rem;
  flex: none;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .34rem .5rem .34rem .85rem;
  cursor: pointer;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: .66rem;
  letter-spacing: .1em;
  font-weight: 600;
}
.knob-track {
  position: relative;
  width: 48px;
  height: 24px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid var(--border);
  flex: none;
}
.knob {
  position: absolute;
  top: 2px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--glow);
  transform: translateX(0);
  transition: transform .35s cubic-bezier(.4, 0, .2, 1);
}
.light .knob { transform: translateX(24px); }

/* ---------- Sections ---------- */
.section { padding: 4rem 0 1rem; scroll-margin-top: 64px; }
.section h2 {
  font-size: 2.1rem;
  margin: 0 0 .4rem;
  font-weight: 700;
  letter-spacing: -.02em;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.section-desc { color: var(--muted); margin: 0 0 1.6rem; max-width: 680px; }

.tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .22rem .75rem;
  background: var(--accent-soft);
}

/* ---------- Endpoint card ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem 1.6rem;
  margin-bottom: 1rem;
  transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease;
}
.card:hover {
  border-color: var(--accent);
  box-shadow: 0 16px 50px -18px var(--glow);
  transform: translateY(-3px);
}

.endpoint { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }

.method {
  font-family: 'JetBrains Mono', monospace;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  padding: .26rem .5rem;
  border-radius: 6px;
}
.method.get {
  color: var(--get);
  background: color-mix(in srgb, var(--get) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--get) 38%, transparent);
}
.method.post {
  color: var(--post);
  background: color-mix(in srgb, var(--post) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--post) 38%, transparent);
}

.path {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1rem;
  color: var(--text);
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .28rem .7rem;
}

.card-desc { color: var(--muted); margin: .9rem 0 0; }
.card-desc code { font-family: 'JetBrains Mono', monospace; color: var(--accent); }

/* ---------- Params table ---------- */
.params { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: .9rem; }
.params th {
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .5rem .9rem .5rem 0;
  border-bottom: 1px solid var(--border);
}
.params td {
  padding: .55rem .9rem .55rem 0;
  border-bottom: 1px solid var(--card-2);
  vertical-align: top;
}
.params td.name { white-space: nowrap; }
code.param { font-family: 'JetBrains Mono', monospace; color: var(--accent); }
.required { color: var(--post); font-size: .82rem; }

/* ---------- Demo / code ---------- */
.demo {
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--card-2);
}
.demo img { height: 22px; }

.code-wrap { position: relative; margin-top: 1rem; }
.copy-btn {
  position: absolute;
  top: .7rem;
  right: .7rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: .64rem;
  letter-spacing: .05em;
  color: #9aa0b0;
  background: rgba(255, 255, 255, .05);
  border: 1px solid #2a2e3a;
  border-radius: 7px;
  padding: .3rem .6rem;
  cursor: pointer;
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.code-wrap pre {
  margin: 0;
  padding: 1.1rem 1.2rem;
  background: #0a0b0f;
  border: 1px solid #1c1f29;
  border-radius: 12px;
  overflow-x: auto;
}
.code-wrap code {
  font-family: 'JetBrains Mono', monospace;
  font-size: .85rem;
  line-height: 1.6;
  color: #c9d4e3;
}

/* ---------- Scroll reveal (progressive enhancement) ----------
   Only active once JS adds `.js` to <html>; no-JS users see everything. */
.js .reveal:not(.in) { opacity: 0; }
.js .reveal.in { animation: revealUp .6s cubic-bezier(.4, 0, .2, 1) backwards; }

@keyframes revealUp {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal:not(.in) { opacity: 1; }
  .js .reveal.in { animation: none; }
}

/* ---------- Footer ---------- */
.footer {
  margin-top: 4rem;
  padding: 2.6rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
}
.footer p { margin: .2rem 0; font-size: .82rem; color: var(--muted); }
.footer a { color: var(--accent); text-decoration: none; font-weight: 600; }