/* ============================================
   Zubo Docs — docs.css
   Layout & typography for documentation pages
   ============================================ */

/* --- Docs Layout --- */
.docs-layout {
  display: flex;
  min-height: calc(100vh - var(--nav-h));
  margin-top: var(--nav-h);
}

/* --- Docs Sidebar --- */
.docs-sidebar {
  width: 260px;
  flex-shrink: 0;
  position: sticky;
  top: var(--nav-h);
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
  padding: 32px 24px;
  border-right: 1px solid var(--border);
  background: var(--bg-elevated);
}

.docs-sidebar-section {
  margin-bottom: 28px;
}

.docs-sidebar-heading {
  font-family: var(--display);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding-left: 12px;
}

.docs-sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.docs-sidebar-links a {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: all 0.2s;
  text-decoration: none;
}

.docs-sidebar-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.docs-sidebar-links a.active {
  color: #c4b5fd;
  background: rgba(124, 58, 237, 0.1);
  font-weight: 600;
}

/* --- Mobile sidebar toggle --- */
.docs-sidebar-toggle {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient);
  border: none;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.4);
  align-items: center;
  justify-content: center;
}

/* --- Docs Content --- */
.docs-content {
  flex: 1;
  min-width: 0;
  max-width: 800px;
  padding: 40px 48px 80px;
}

/* --- Typography --- */
.docs-content h1 {
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
  color: #fff;
}

.docs-content h2 {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  color: #fff;
}

.docs-content h3 {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--text);
}

.docs-content h4 {
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 8px;
  color: var(--text);
}

.docs-content p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.docs-content a {
  color: #a78bfa;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

.docs-content a:hover {
  color: #c4b5fd;
}

.docs-content strong {
  font-weight: 600;
  color: #fff;
}

.docs-content em {
  font-style: italic;
  color: var(--text);
}

/* --- Inline code --- */
.docs-content code {
  font-family: var(--mono);
  font-size: 0.875em;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 7px;
  border-radius: 5px;
  color: #c4b5fd;
}

/* --- Code blocks --- */
.docs-content pre {
  margin: 20px 0;
  background: #0c0c10;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
}

.docs-content pre code {
  display: block;
  padding: 20px 24px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.8;
  border-radius: 0;
}

/* --- Tables --- */
.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}

.docs-content th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.docs-content td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: top;
}

.docs-content td code {
  font-size: 12px;
  white-space: nowrap;
}

.docs-content tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* --- Lists --- */
.docs-content ul,
.docs-content ol {
  margin: 12px 0 20px;
  padding-left: 24px;
}

.docs-content li {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.docs-content li code {
  font-size: 0.85em;
}

/* --- Blockquote / Callouts --- */
.docs-content blockquote {
  margin: 20px 0;
  padding: 16px 20px;
  background: rgba(124, 58, 237, 0.06);
  border-left: 3px solid var(--violet);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.docs-content blockquote p {
  margin: 0;
  color: var(--text);
}

/* --- Horizontal rule --- */
.docs-content hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 40px 0;
}

/* --- Docs breadcrumb --- */
.docs-breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

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

.docs-breadcrumb a:hover {
  color: var(--text);
}

.docs-breadcrumb span {
  margin: 0 6px;
  opacity: 0.5;
}

/* --- Architecture diagram (ASCII block) --- */
.docs-arch {
  background: #0c0c10;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-secondary);
  overflow-x: auto;
  white-space: pre;
  margin: 20px 0;
}

/* --- Docs page nav (prev/next) --- */
.docs-page-nav {
  display: flex;
  gap: 16px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.docs-page-nav a {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.2s;
}

.docs-page-nav a:hover {
  border-color: rgba(124, 58, 237, 0.3);
  background: var(--bg-card-hover);
}

.docs-page-nav .nav-dir {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.docs-page-nav .nav-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.docs-page-nav a:last-child {
  text-align: right;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .docs-sidebar {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    bottom: 0;
    z-index: 99;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: none;
  }

  .docs-sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
  }

  .docs-sidebar-toggle {
    display: flex;
  }

  .docs-content {
    padding: 28px 20px 60px;
  }

  .docs-content h1 {
    font-size: 1.8rem;
  }

  .docs-content h2 {
    font-size: 1.3rem;
  }

  .docs-page-nav {
    flex-direction: column;
  }

  .docs-page-nav a:last-child {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .docs-content {
    padding: 20px 16px 60px;
  }

  .docs-content pre code {
    font-size: 11px;
    padding: 14px 16px;
  }

  .docs-content table {
    font-size: 12px;
  }

  .docs-content th,
  .docs-content td {
    padding: 8px 10px;
  }
}