/* moon-egui Documentation & Wiki Shared Stylesheet (docs.css)
 * Studio Light Porcelain Aesthetic matching index.html and gallery.html
 */

:root {
  --bg: #ffffff;
  --bg-subtle: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text-main: #0f172a;
  --text-sub: #334155;
  --text-muted: #64748b;
  --brand: #2563eb;
  --brand-hover: #1d4ed8;
  --brand-subtle: #eff6ff;
  --brand-border: #bfdbfe;
  --dark-btn: #0f172a;
  --dark-btn-hover: #1e293b;
  --code-bg: #0f172a;
  --code-header: #1e293b;
  --code-text: #e2e8f0;
  --sidebar-w: 270px;
  --toc-w: 230px;
  --header-h: 60px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Sticky Navigation */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.brand-logo {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  object-fit: cover;
}

.brand-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-subtle);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
  position: relative;
  padding: 4px 0;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link.active {
  color: var(--brand);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -18px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  background: var(--dark-btn);
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.15s ease;
}

.nav-cta:hover {
  background: var(--dark-btn-hover);
}

/* Three-column Layout */
.docs-layout {
  display: flex;
  min-height: calc(100vh - var(--header-h));
  position: relative;
}

/* Left Sidebar */
.docs-sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  border-right: 1px solid var(--border);
  padding: 24px 16px 48px;
  background: #ffffff;
  scrollbar-width: thin;
  scrollbar-color: #cbd5e1 transparent;
}

.docs-sidebar::-webkit-scrollbar {
  width: 5px;
}

.docs-sidebar::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 3px;
}

.sidebar-search-box {
  margin-bottom: 20px;
  position: relative;
}

.sidebar-search {
  width: 100%;
  padding: 8px 12px 8px 32px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-main);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
  transition: all 0.15s ease;
}

.sidebar-search:focus {
  border-color: var(--brand);
  background: #ffffff;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.12);
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  width: 14px;
  height: 14px;
}

.sidebar-group {
  margin-bottom: 24px;
}

.sidebar-group-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 6px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-group-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  background: var(--bg-subtle);
  color: var(--text-muted);
  padding: 1px 5px;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.sidebar-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-sub);
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.sidebar-link:hover {
  color: var(--text-main);
  background: var(--bg-subtle);
}

.sidebar-link.active {
  color: var(--brand);
  font-weight: 600;
  background: var(--brand-subtle);
}

.sidebar-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--text-muted);
  background: #ffffff;
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.sidebar-link.active .sidebar-tag {
  color: var(--brand);
  border-color: var(--brand-border);
  background: #ffffff;
}

/* Center Main Content */
.docs-main {
  flex: 1;
  min-width: 0;
  padding: 40px 48px 80px;
  max-width: 900px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.breadcrumb-sep {
  color: var(--border-strong);
}

/* Header Banner */
.page-header {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.page-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-subtle);
  border: 1px solid var(--brand-border);
  padding: 3px 8px;
  border-radius: 5px;
  margin-bottom: 12px;
}

.page-title {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  line-height: 1.25;
  margin-bottom: 12px;
}

.page-desc {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.6;
}

/* Headings & Anchors */
.docs-content h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin: 48px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}

.docs-content h3 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-main);
  margin: 32px 0 12px;
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}

.docs-content h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-sub);
  margin: 20px 0 8px;
}

.heading-anchor {
  color: var(--text-muted);
  text-decoration: none;
  opacity: 0;
  transition: opacity 0.15s ease, color 0.15s ease;
  font-size: 0.85em;
  margin-left: 2px;
}

h2:hover .heading-anchor,
h3:hover .heading-anchor {
  opacity: 0.7;
}

.heading-anchor:hover {
  opacity: 1 !important;
  color: var(--brand);
}

.docs-content p {
  font-size: 14.5px;
  color: var(--text-sub);
  margin-bottom: 16px;
  line-height: 1.7;
}

.docs-content ul,
.docs-content ol {
  margin-bottom: 16px;
  padding-left: 20px;
  color: var(--text-sub);
  font-size: 14.5px;
}

.docs-content li {
  margin-bottom: 6px;
  line-height: 1.65;
}

.docs-content code:not(pre code) {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  padding: 2px 6px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: #0f172a;
}

/* Callout / Admonition */
.callout {
  border-radius: 8px;
  padding: 16px 18px;
  margin: 20px 0;
  border-left: 4px solid;
  font-size: 14px;
  line-height: 1.6;
}

.callout-title {
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 13.5px;
}

.callout-note {
  background: #f0f7ff;
  border-color: #3b82f6;
  color: #1e3a8a;
}

.callout-note .callout-title {
  color: #1d4ed8;
}

.callout-tip {
  background: #f0fdf4;
  border-color: #10b981;
  color: #064e3b;
}

.callout-tip .callout-title {
  color: #047857;
}

.callout-warning {
  background: #fffbeb;
  border-color: #f59e0b;
  color: #78350f;
}

.callout-warning .callout-title {
  color: #b45309;
}

/* Code Snippets */
.code-wrapper {
  position: relative;
  margin: 18px 0 24px;
  border-radius: 8px;
  background: var(--code-bg);
  border: 1px solid #1e293b;
  overflow: hidden;
  box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.15);
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--code-header);
  border-bottom: 1px solid #334155;
}

.code-lang-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  color: #94a3b8;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.code-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: inherit;
  font-size: 11.5px;
  font-weight: 500;
  color: #cbd5e1;
  background: #334155;
  border: 1px solid #475569;
  border-radius: 5px;
  padding: 3px 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.code-copy-btn:hover {
  background: #475569;
  color: #ffffff;
}

.code-copy-btn.copied {
  color: #86efac;
  border-color: #86efac;
  background: #064e3b;
}

.code-wrapper pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  color: var(--code-text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
  scrollbar-width: thin;
  scrollbar-color: #334155 transparent;
}

.code-wrapper pre::-webkit-scrollbar {
  height: 6px;
}

.code-wrapper pre::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 3px;
}

/* Syntax Highlighting Utilities */
.syn-kw { color: #f472b6; font-weight: 600; }
.syn-fn { color: #60a5fa; }
.syn-type { color: #38bdf8; }
.syn-str { color: #a7f3d0; }
.syn-num { color: #fde047; }
.syn-cmt { color: #64748b; font-style: italic; }
.syn-id { color: #e2e8f0; }
.syn-op { color: #cbd5e1; }

/* Tables */
.table-container {
  overflow-x: auto;
  margin: 18px 0 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
}

.props-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13.5px;
}

.props-table th {
  background: var(--bg-subtle);
  padding: 10px 14px;
  font-weight: 600;
  color: var(--text-main);
  border-bottom: 1px solid var(--border);
  font-size: 12.5px;
}

.props-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-sub);
  line-height: 1.5;
}

.props-table tr:last-child td {
  border-bottom: none;
}

.type-pill {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  background: #f1f5f9;
  color: #0284c7;
  border: 1px solid #e0e7ff;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 12px;
}

.status-badge.implemented {
  background: #ecfdf5;
  color: #059669;
  border: 1px solid #a7f3d0;
}

.status-badge.proposed {
  background: #fff7ed;
  color: #ea580c;
  border: 1px solid #fed7aa;
}

/* Right TOC */
.docs-toc {
  width: var(--toc-w);
  flex-shrink: 0;
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 40px 16px 48px;
  scrollbar-width: none;
}

.docs-toc::-webkit-scrollbar {
  display: none;
}

.toc-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.toc-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-left: 2px solid var(--border);
  padding-left: 12px;
}

.toc-link {
  font-size: 12.5px;
  color: var(--text-muted);
  text-decoration: none;
  line-height: 1.4;
  transition: all 0.15s ease;
  display: block;
}

.toc-link:hover {
  color: var(--text-main);
}

.toc-link.active {
  color: var(--brand);
  font-weight: 600;
  position: relative;
}

.toc-link.active::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 14px;
  background: var(--brand);
  border-radius: 2px;
}

.toc-actions {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toc-action-link {
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: color 0.15s ease;
}

.toc-action-link:hover {
  color: var(--brand);
}

/* Footer in docs */
.docs-footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
}

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

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

/* Responsive */
@media (max-width: 1200px) {
  .docs-toc {
    display: none;
  }
  .docs-main {
    max-width: 100%;
    padding: 32px 32px 64px;
  }
}

@media (max-width: 840px) {
  .docs-sidebar {
    position: fixed;
    top: var(--header-h);
    left: -100%;
    z-index: 990;
    transition: left 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.1);
  }

  .docs-sidebar.open {
    left: 0;
  }

  .docs-main {
    padding: 24px 16px 64px;
  }

  .sidebar-toggle-btn {
    display: inline-flex !important;
  }
}

.sidebar-toggle-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-main);
}

/* Interactive MoonBit Wasm Micro-Sandboxes */
.doc-sandbox {
  margin: 20px 0 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.02);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.doc-sandbox:hover {
  border-color: var(--border-strong);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06), 0 8px 20px rgba(0, 0, 0, 0.03);
}

.doc-sandbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}

.doc-sandbox-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.doc-sandbox-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
  display: inline-block;
}

.doc-sandbox-title {
  font-weight: 600;
  color: var(--text-sub);
  letter-spacing: -0.01em;
}

.doc-sandbox-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--brand);
  background: var(--brand-subtle);
  border: 1px solid var(--brand-border);
  padding: 1px 6px;
  border-radius: 4px;
}

.doc-sandbox-ctrls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.doc-sandbox-tag {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.04);
  padding: 2px 7px;
  border-radius: 4px;
}

.doc-sandbox-body {
  position: relative;
  width: 100%;
  background: #ffffff;
  overflow: hidden;
}

.doc-sandbox-canvas {
  width: 100%;
  height: 100%;
  display: block;
  outline: none;
  cursor: default;
}

.doc-sandbox-canvas:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.35);
  outline-offset: -2px;
}

/* Interactive Wiki Pipeline Stepper & DrawCmd Inspector */
.pipeline-card {
  margin: 24px 0 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 6px 16px rgba(0, 0, 0, 0.02);
}

.pipeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
}

.pipeline-stepper {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  overflow-x: auto;
}

.pipeline-step-node {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

.step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.pipeline-step-node.active {
  color: var(--brand);
  font-weight: 700;
}

.pipeline-step-node.active .step-num {
  background: var(--brand);
  border-color: var(--brand);
  color: #ffffff;
}

.pipeline-step-node.completed .step-num {
  background: #10b981;
  border-color: #10b981;
  color: #ffffff;
}

.step-arrow {
  color: var(--border-strong);
  font-size: 12px;
}

.pipeline-content {
  padding: 20px;
  background: #fafbfc;
}

.pipeline-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.pipeline-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.pipeline-desc {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 14px;
  line-height: 1.6;
}

.pipeline-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
}

.inspector-card {
  margin: 24px 0 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.inspector-body {
  display: grid;
  grid-template-columns: 360px 1fr;
  height: 280px;
}

.inspector-canvas-pane {
  position: relative;
  background: #ffffff;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.inspector-canvas-pane canvas {
  width: 100%;
  height: 240px;
  display: block;
}

.inspector-stream-pane {
  background: #0f172a;
  color: #e2e8f0;
  padding: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  overflow-y: auto;
  line-height: 1.7;
}

.cmd-line {
  display: flex;
  gap: 8px;
  align-items: baseline;
}

.cmd-idx {
  color: #64748b;
  min-width: 24px;
}

.cmd-tag {
  color: #38bdf8;
  font-weight: 600;
}

.cmd-meta {
  color: #94a3b8;
  word-break: break-all;
}

.cmd-more {
  color: #64748b;
  font-style: italic;
  margin-top: 6px;
}

@media (max-width: 840px) {
  .inspector-body {
    grid-template-columns: 1fr;
    height: auto;
  }
  .inspector-canvas-pane {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .inspector-stream-pane {
    height: 240px;
  }
}