/* Roustix Docs Hub — índice maestro */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

:root {
  --bb-primario: #042c53;
  --bb-acento: #185fa5;
  --bb-secundario: #888780;
  --bb-borde: rgba(4, 44, 83, 0.1);
  --bb-nav-w: 260px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: #444441;
  background: #f4f7fb;
  line-height: 1.55;
}

.docs-shell {
  display: grid;
  grid-template-columns: var(--bb-nav-w) 1fr;
  min-height: 100vh;
}

.docs-nav {
  background: #1a2332;
  color: rgba(255, 255, 255, 0.88);
  padding: 1.75rem 1.15rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.docs-nav-brand .wordmark {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0;
}

.docs-nav-brand .sub {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  margin: 0.35rem 0 0;
  text-transform: uppercase;
}

.docs-nav-label {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  margin: 1.25rem 0 0.5rem;
  text-transform: uppercase;
}

.docs-nav a {
  color: rgba(255, 255, 255, 0.75);
  display: block;
  font-size: 0.82rem;
  padding: 0.28rem 0;
  text-decoration: none;
}

.docs-nav a:hover { color: #fff; }
.docs-nav a.is-active { color: #63b3ed; font-weight: 600; }
.docs-nav a.is-soon { color: rgba(255, 255, 255, 0.35); }

.docs-main { min-width: 0; }

.docs-hero {
  background: linear-gradient(160deg, var(--bb-primario) 0%, #0d3d6b 100%);
  color: #fff;
  padding: 3rem 2.5rem 2.5rem;
  text-align: center;
}

.docs-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

.docs-hero .lead {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1rem;
  margin: 0 auto;
  max-width: 36rem;
}

.docs-hero .tagline {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.82rem;
  margin-top: 1.25rem;
}

.docs-tree {
  background: #0f2744;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.85);
  font-family: ui-monospace, monospace;
  font-size: 0.78rem;
  line-height: 1.85;
  margin: 2rem auto 0;
  max-width: 28rem;
  padding: 1.15rem 1.35rem;
  text-align: left;
}

.docs-section {
  padding: 2rem 2.5rem 3rem;
}

.docs-section h2 {
  color: var(--bb-primario);
  font-size: 1.15rem;
  margin: 0 0 1.25rem;
}

.docs-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.docs-card {
  background: #fff;
  border: 1px solid var(--bb-borde);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  padding: 1.15rem 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s, border-color 0.15s;
}

.docs-card:hover {
  border-color: var(--bb-acento);
  box-shadow: 0 6px 20px rgba(4, 44, 83, 0.08);
}

.docs-card.is-soon {
  opacity: 0.72;
  pointer-events: none;
}

.docs-card-num {
  color: var(--bb-acento);
  font-family: ui-monospace, monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.docs-card h3 {
  color: var(--bb-primario);
  font-size: 1rem;
  margin: 0.35rem 0 0.2rem;
}

.docs-card .code {
  color: var(--bb-secundario);
  font-family: ui-monospace, monospace;
  font-size: 0.72rem;
}

.docs-card p {
  color: var(--bb-secundario);
  flex: 1;
  font-size: 0.84rem;
  margin: 0.5rem 0 0;
}

.docs-card-foot {
  border-top: 1px solid var(--bb-borde);
  display: flex;
  gap: 0.5rem;
  justify-content: space-between;
  margin-top: 0.85rem;
  padding-top: 0.65rem;
}

.docs-badge {
  border-radius: 4px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.4rem;
  text-transform: uppercase;
}

.docs-badge--done { background: #c6f6d5; color: #22543d; }
.docs-badge--frozen { background: #bee3f8; color: #2a4365; }
.docs-badge--wip { background: #fefcbf; color: #744210; }
.docs-badge--soon { background: #edf2f7; color: #718096; }

.docs-release {
  background: linear-gradient(135deg, #042c53 0%, #185fa5 100%);
  border-radius: 12px;
  color: #fff;
  margin-bottom: 2rem;
  padding: 1.75rem 2rem;
}

.docs-release h2 {
  color: #fff;
  font-size: 1.35rem;
  margin: 0 0 0.5rem;
}

.docs-release p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  margin: 0 0 1rem;
  max-width: 52rem;
}

.docs-release-grid {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.docs-release-item {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  font-size: 0.82rem;
  padding: 0.65rem 0.85rem;
}

.docs-release-item strong { color: #fff; display: block; }
.docs-release-item span { color: rgba(255, 255, 255, 0.75); font-size: 0.75rem; }

.docs-release-foot {
  font-size: 0.75rem;
  margin-top: 1rem;
  opacity: 0.8;
}

.docs-release-foot a { color: #90cdf4; }

.docs-pillars {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-top: 1rem;
}

.docs-pillar {
  background: #fff;
  border-left: 4px solid var(--bb-acento);
  border-radius: 8px;
  padding: 1rem 1.15rem;
}

.docs-pillar h4 {
  color: var(--bb-primario);
  font-size: 0.88rem;
  margin: 0 0 0.35rem;
}

.docs-pillar p {
  color: var(--bb-secundario);
  font-size: 0.8rem;
  margin: 0;
}

@media (max-width: 900px) {
  .docs-shell { grid-template-columns: 1fr; }
  .docs-nav { height: auto; position: relative; }
  .docs-section { padding: 1.5rem 1.25rem 2rem; }
}