:root {
  --bg: #ffffff;
  --fg: #0b1020;
  --muted: rgba(11, 16, 32, 0.68);
  --muted2: rgba(11, 16, 32, 0.46);
  --line: rgba(11, 16, 32, 0.10);
  --accent: #2563eb;
  --hero-bg: #1a2744;
  --solucion-bg: #eef4ff;
}

html[data-theme="dark"] {
  --bg: #0b0f19;
  --fg: #f4f6fb;
  --muted: rgba(244, 246, 251, 0.70);
  --muted2: rgba(244, 246, 251, 0.46);
  --line: rgba(244, 246, 251, 0.10);
  --hero-bg: #060d1f;
  --solucion-bg: #0d1829;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.65;
}

.docs-layout {
  display: flex;
  min-height: 100vh;
}

.docs-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.docs-header a {
  color: var(--fg);
  text-decoration: none;
  font-weight: 700;
  font-size: 16px;
}

.docs-sidebar {
  width: 280px;
  flex-shrink: 0;
  border-right: 1px solid var(--line);
  background: var(--bg);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  padding: 20px;
  overflow-y: auto;
  z-index: 40;
  transition: transform 220ms ease;
}

.docs-main {
  margin-left: 280px;
  flex: 1;
  padding: 40px 32px 80px;
  max-width: 920px;
}

.docs-nav-group {
  margin-bottom: 28px;
}

.docs-nav-group h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted2);
  margin: 0 0 10px;
  font-weight: 700;
}

.docs-nav-group a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  padding: 7px 10px;
  border-radius: 8px;
  transition: background-color 120ms, color 120ms;
}

.docs-nav-group a:hover,
.docs-nav-group a.active {
  background: color-mix(in srgb, var(--accent) 8%, var(--bg));
  color: var(--fg);
}

.docs-content h1 {
  font-size: 34px;
  letter-spacing: -0.03em;
  margin: 0 0 8px;
  line-height: 1.15;
}

.docs-content .subtitle {
  color: var(--muted);
  font-size: 17px;
  margin-bottom: 32px;
}

.docs-content h2 {
  font-size: 22px;
  margin-top: 42px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  letter-spacing: -0.01em;
  scroll-margin-top: 80px;
}

.docs-content h3 {
  font-size: 17px;
  margin-top: 28px;
  scroll-margin-top: 80px;
}

.docs-content p,
.docs-content ul,
.docs-content ol {
  color: var(--muted);
}

.docs-content ul,
.docs-content ol {
  padding-left: 22px;
}

.docs-content li {
  margin: 6px 0;
}

.docs-content a {
  color: var(--accent);
}

.docs-content code {
  background: color-mix(in srgb, var(--fg) 6%, var(--bg));
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.9em;
}

.docs-content .card {
  background: color-mix(in srgb, var(--fg) 2%, var(--bg));
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  margin: 16px 0;
}

.docs-content .card h3 {
  margin-top: 0;
  font-size: 16px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-right: 6px;
}

.kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.theme-toggle,
.mobile-toggle {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--fg);
  border-radius: 8px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.mobile-toggle {
  display: none;
  width: auto;
  padding: 6px 12px;
  font-size: 14px;
  gap: 6px;
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  z-index: 35;
}

@media (max-width: 900px) {
  .docs-sidebar {
    transform: translateX(-110%);
  }
  .docs-sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.12);
  }
  .docs-main {
    margin-left: 0;
    padding: 28px 18px 60px;
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .sidebar-backdrop.show {
    display: block;
  }
}

.docs-footer {
  border-top: 1px solid var(--line);
  margin-top: 60px;
  padding-top: 24px;
  color: var(--muted2);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.docs-footer a {
  color: var(--muted);
  text-decoration: none;
}

.docs-footer a:hover {
  color: var(--fg);
}

.next-prev {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
}

.next-prev a {
  display: block;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  text-decoration: none;
  color: var(--fg);
  background: color-mix(in srgb, var(--fg) 2%, var(--bg));
}

.next-prev a span {
  display: block;
  font-size: 12px;
  color: var(--muted2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.next-prev a:hover {
  border-color: var(--accent);
}

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

.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin: 28px 0;
}

.home-grid a {
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  transition: transform 120ms, border-color 120ms, box-shadow 120ms;
}

.home-grid a:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.08);
}

.home-grid h3 {
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--fg);
}

.home-grid p {
  margin: 0;
  font-size: 14px;
  color: var(--muted2);
}