:root {
  --shadow: 0 24px 76px rgba(0, 0, 0, 0.42);
  --radius-xl: 26px;
  --radius-lg: 18px;
  --max: 1180px;
  --sidebar: 280px;
}

body::after {
  z-index: -2;
  opacity: 0.56;
  background:
    radial-gradient(
      760px 520px at 16% 3%,
      rgba(238, 195, 28, 0.08),
      transparent 64%
    ),
    radial-gradient(
      860px 600px at 82% 84%,
      rgba(0, 0, 0, 0.34),
      transparent 60%
    );
  animation: ambientShift 18s ease-in-out infinite;
}

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

.surface {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.06),
      rgba(255, 255, 255, 0.03)
    ),
    rgba(11, 11, 12, 0.8);
  box-shadow: var(--shadow);
}

.surface::before {
  content: "";
  position: absolute;
  left: -90px;
  bottom: -130px;
  width: 280px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(238, 195, 28, 0.1),
    transparent 68%
  );
  pointer-events: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  transition:
    transform 0.22s var(--ease),
    background 0.22s var(--ease),
    border-color 0.22s var(--ease),
    box-shadow 0.22s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line);
}

.hero {
  padding: 44px 0 28px;
}

.hero-inner,
.panel,
.route,
.sidebar {
  padding: 24px;
}

.hero-inner {
  display: grid;
  gap: 22px;
  animation: heroIn 0.72s var(--ease) both;
}

.hero-copy h1 {
  margin-top: 16px;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 4rem);
  line-height: 0.95;
  letter-spacing: -0.055em;
}

.hero-copy p {
  margin-top: 14px;
}

.hero-actions,
.footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-meta,
.summary-grid,
.mini-grid,
.code-grid {
  display: grid;
  gap: 12px;
}

.hero-meta,
.summary-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mini-grid,
.code-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.meta-card,
.summary-card,
.mini {
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.meta-card span {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 8px;
}

.meta-card strong,
.summary-card strong,
.mini strong {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
}

.meta-card p,
.summary-card p,
.mini span {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.doc-layout {
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, 1fr);
  gap: 22px;
  padding: 0 0 60px;
}

.sidebar {
  position: sticky;
  top: 84px;
  align-self: start;
  max-height: calc(100vh - 104px);
  overflow: auto;
}

.sidebar .group + .group {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.group-label {
  display: block;
  padding: 0 8px 8px;
  color: var(--dim);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.sidebar nav {
  display: grid;
  gap: 4px;
}

.sidebar nav a {
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 13px;
  transition:
    background 0.16s ease,
    color 0.16s ease,
    transform 0.16s ease;
}

.sidebar nav a:hover,
.sidebar nav a.active {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  transform: translateX(2px);
}

.sidebar-note {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.sidebar-note p {
  font-size: 12px;
  line-height: 1.6;
}

.content {
  display: grid;
  gap: 16px;
}

.section-head {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.6vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.route-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.route-title {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.route-title h2 {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.method,
.auth {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.method {
  color: var(--accent);
  background: rgba(238, 195, 28, 0.12);
  border: 1px solid rgba(238, 195, 28, 0.24);
}

.auth {
  color: rgba(255, 255, 255, 0.74);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.route > p {
  margin-bottom: 16px;
}

.code-block {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.42);
}

.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.code-head strong {
  font-size: 13px;
}

.copy-btn {
  min-height: 30px;
  padding: 0 10px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  transition:
    background 0.16s ease,
    color 0.16s ease,
    transform 0.16s ease;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  transform: translateY(-1px);
}

pre {
  margin: 0;
  padding: 16px;
  overflow: auto;
  font-size: 12.5px;
  line-height: 1.68;
  color: rgba(255, 255, 255, 0.86);
}

.footer {
  margin-top: 24px;
  border-top: 1px solid var(--line);
  padding: 24px 0 32px;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.58s var(--ease),
    transform 0.58s var(--ease);
  transition-delay: calc(var(--delay, 0) * 1ms);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes heroIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .doc-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    top: 0;
    max-height: none;
  }
}

@media (max-width: 760px) {
  .container {
    width: calc(100% - 32px);
  }

  .hero-inner,
  .panel,
  .route,
  .sidebar {
    padding: 20px;
  }

  .hero-meta,
  .summary-grid,
  .mini-grid,
  .code-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}