:root {
  --ink: #0b1324;
  --ink-soft: #334158;
  --ink-muted: #64718a;
  --line: rgba(11, 19, 36, 0.1);
  --sea: #1f5f8b;
  --sea-deep: #15425f;
  --clay: #e39b5f;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: rgba(255, 255, 255, 0.96);
  --shadow: 0 16px 44px rgba(11, 19, 36, 0.12);
  --radius-md: 14px;
  --radius-lg: 22px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Manrope", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(31, 95, 139, 0.16), transparent 44%),
    radial-gradient(circle at 95% 6%, rgba(227, 155, 95, 0.18), transparent 38%),
    linear-gradient(180deg, #f4f7fb 0%, #edf2f8 52%, #f8fafc 100%);
}

a {
  color: var(--sea);
}

.docs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px clamp(20px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 5;
}

.docs-brand {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
}

.docs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.docs-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 600;
  padding: 8px 10px;
  border-radius: 10px;
}

.docs-nav a:hover,
.docs-nav a[aria-current="page"] {
  color: var(--sea-deep);
  background: rgba(31, 95, 139, 0.08);
}

.docs-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px clamp(20px, 5vw, 64px) 56px;
}

.docs-hero {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 4vw, 34px);
  background: linear-gradient(130deg, rgba(31, 95, 139, 0.14), rgba(227, 155, 95, 0.12));
  box-shadow: var(--shadow);
}

.docs-hero .eyebrow {
  margin: 0;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.76rem;
  color: var(--ink-muted);
  font-weight: 700;
}

.docs-hero h1 {
  margin: 12px 0 10px;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  letter-spacing: -0.02em;
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
}

.docs-hero p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.7;
}

.docs-grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.docs-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
  padding: 18px;
  box-shadow: 0 10px 24px rgba(11, 19, 36, 0.08);
}

.docs-card h2,
.docs-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

.docs-card p,
.docs-card li {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.65;
}

.docs-card ul,
.docs-card ol {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.docs-section {
  margin-top: 20px;
  display: grid;
  gap: 14px;
}

.docs-section h2 {
  margin: 0;
  font-size: 1.24rem;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

.docs-callout {
  border: 1px solid rgba(31, 95, 139, 0.2);
  background: rgba(31, 95, 139, 0.08);
  border-radius: var(--radius-md);
  padding: 14px;
}

.docs-callout p {
  margin: 0;
  color: var(--ink-soft);
}

.docs-footer {
  margin-top: 34px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  color: var(--ink-muted);
  font-size: 0.88rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}

.docs-muted {
  color: var(--ink-muted);
}

@media (max-width: 900px) {
  .docs-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .docs-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .docs-grid {
    grid-template-columns: 1fr;
  }
}