/* beads-superpowers documentation site — shared styles */
:root {
  --bg: #0f172a;
  --bg-alt: #0b1120;
  --surface: #1e293b;
  --surface-hover: #263349;
  --border: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --green: #22c55e;
  --yellow: #eab308;
  --blue: #3b82f6;
  --red: #ef4444;
  --code-bg: #0d1117;
  --sidebar-w: 260px;
  --content-max: 860px;
  --toc-w: 200px;
}

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

a { color: var(--accent-light); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Layout ─── */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

/* ─── Sidebar ─── */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  overflow-y: auto;
  background: var(--bg-alt);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  z-index: 100;
}

.sidebar-header {
  padding: 0 20px 16px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.sidebar-header a { color: var(--text); }
.sidebar-header a:hover { text-decoration: none; color: var(--accent-light); }
.sidebar-header .version {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-weight: 400;
  margin-left: 6px;
}

.sidebar-section {
  padding: 6px 0;
}
.sidebar-section-title {
  padding: 4px 20px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.sidebar a.nav-link {
  display: block;
  padding: 6px 20px 6px 24px;
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: all 0.15s ease;
  border-left: 3px solid transparent;
}
.sidebar a.nav-link:hover {
  color: var(--text);
  background: var(--surface);
  text-decoration: none;
}
.sidebar a.nav-link.active {
  color: var(--accent-light);
  border-left-color: var(--accent);
  background: var(--accent-glow);
  font-weight: 500;
}

.sidebar-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 12px 20px;
}

.sidebar-external {
  padding: 6px 20px 6px 24px;
  font-size: 0.8rem;
}
.sidebar-external a {
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.sidebar-external a:hover { color: var(--text-muted); }

.sidebar-github { padding: 16px 16px; }
.btn-github-sidebar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #fff;
  color: #0f172a;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 8px;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
}
.btn-github-sidebar:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
  text-decoration: none;
}
.btn-github-sidebar svg { width: 18px; height: 18px; fill: #0f172a; }

/* ─── Main content ─── */
.content {
  grid-column: 2;
  padding: 40px 48px 80px;
  max-width: calc(var(--content-max) + var(--toc-w) + 96px);
  display: grid;
  grid-template-columns: 1fr var(--toc-w);
  gap: 40px;
}

.content article {
  max-width: var(--content-max);
  min-width: 0;
}

/* ─── On This Page (right TOC) ─── */
.on-this-page {
  position: sticky;
  top: 32px;
  align-self: start;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
}
.on-this-page-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.on-this-page a {
  display: block;
  padding: 3px 0 3px 12px;
  font-size: 0.8rem;
  color: var(--text-dim);
  border-left: 2px solid var(--border);
  transition: all 0.15s ease;
}
.on-this-page a:hover {
  color: var(--text-muted);
  border-left-color: var(--text-muted);
  text-decoration: none;
}
.on-this-page a.active {
  color: var(--accent-light);
  border-left-color: var(--accent);
}

/* ─── Typography ─── */
article h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
article .subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}
article h2 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
article h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 32px;
  margin-bottom: 12px;
}
article h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 24px;
  margin-bottom: 8px;
}
article p { margin-bottom: 16px; color: var(--text-muted); }
article strong { color: var(--text); }
article ul, article ol { margin-bottom: 16px; padding-left: 24px; color: var(--text-muted); }
article li { margin-bottom: 6px; }
article li strong { color: var(--text); }
article blockquote {
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  margin: 16px 0;
  background: var(--accent-glow);
  border-radius: 0 6px 6px 0;
  color: var(--text-muted);
  font-style: italic;
}

/* ─── Code ─── */
code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.88em;
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--green);
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  overflow-x: auto;
  margin: 16px 0;
  line-height: 1.5;
}
pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
}

/* ─── Tables ─── */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.9rem;
}
th {
  text-align: left;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}
tr:nth-child(even) td { background: rgba(30, 41, 59, 0.4); }

/* ─── Callouts ─── */
.callout {
  padding: 16px 20px;
  margin: 20px 0;
  border-radius: 0 8px 8px 0;
  border-left: 4px solid;
}
.callout-title {
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.callout p { margin-bottom: 8px; }
.callout p:last-child { margin-bottom: 0; }
.callout-info { border-color: var(--blue); background: rgba(59, 130, 246, 0.08); }
.callout-info .callout-title { color: var(--blue); }
.callout-warning { border-color: var(--yellow); background: rgba(234, 179, 8, 0.08); }
.callout-warning .callout-title { color: var(--yellow); }
.callout-tip { border-color: var(--green); background: rgba(34, 197, 94, 0.08); }
.callout-tip .callout-title { color: var(--green); }
.callout-danger { border-color: var(--red); background: rgba(239, 68, 68, 0.08); }
.callout-danger .callout-title { color: var(--red); }

/* ─── Cards ─── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin: 20px 0;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  transition: border-color 0.2s, transform 0.15s;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.card a { color: var(--text); text-decoration: none; display: block; }
.card a:hover { text-decoration: none; }
.card-title { font-weight: 600; margin-bottom: 6px; font-size: 1rem; }
.card-desc { color: var(--text-muted); font-size: 0.85rem; }

/* ─── Skill tags ─── */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
  margin: 16px 0;
}
.skill-tag {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.85rem;
}
.skill-tag .name { color: var(--accent-light); font-weight: 600; }
.skill-tag .desc { color: var(--text-muted); font-size: 0.78rem; }
a.skill-tag { text-decoration: none; transition: border-color 0.15s, transform 0.15s; }
a.skill-tag:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }

/* ─── Badge row ─── */
.badges { margin: 16px 0; }
.badges img { margin: 0 4px; vertical-align: middle; }

/* ─── Install box ─── */
.install-box {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 20px;
  display: inline-block;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.9rem;
  color: var(--green);
  max-width: 100%;
  overflow-x: auto;
}
.install-box .prompt { color: var(--text-muted); }

/* ─── CTA button ─── */
.btn-github {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  color: #0f172a;
  font-size: 1rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 10px;
  border: none;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.25);
}
.btn-github:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.4);
  text-decoration: none;
}
.btn-github svg { width: 20px; height: 20px; fill: #0f172a; }

/* ─── Page navigation (prev/next) ─── */
.page-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.page-nav a {
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: 45%;
  transition: border-color 0.15s;
}
.page-nav a:hover { border-color: var(--accent); text-decoration: none; }
.page-nav .label { font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; }
.page-nav .title { color: var(--accent-light); font-weight: 500; }

/* ─── Last Updated ─── */
.last-updated {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.last-updated svg {
  width: 14px;
  height: 14px;
  fill: var(--text-dim);
  flex-shrink: 0;
}

/* ─── Mermaid ─── */
.mermaid {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin: 20px 0;
  text-align: center;
  overflow-x: auto;
  cursor: pointer;
  position: relative;
  transition: border-color 0.15s;
}
.mermaid:hover {
  border-color: var(--accent);
}
.mermaid::after {
  content: '\2922';
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 1.1rem;
  color: var(--text-dim);
  opacity: 0;
  transition: opacity 0.15s;
}
.mermaid:hover::after {
  opacity: 1;
}
.mermaid svg {
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ─── Mermaid Lightbox ─── */
.mermaid-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.92);
  cursor: zoom-out;
}
.mermaid-lightbox.active {
  display: flex;
  align-items: center;
  justify-content: center;
}
.mermaid-lightbox-inner {
  width: 90vw;
  height: 90vh;
  overflow: hidden;
  cursor: grab;
}
.mermaid-lightbox-inner:active {
  cursor: grabbing;
}
.mermaid-lightbox-inner svg {
  max-width: none;
  width: auto;
  height: auto;
}
.mermaid-lightbox-close {
  position: absolute;
  top: 16px;
  right: 24px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 2rem;
  cursor: pointer;
  z-index: 10000;
  line-height: 1;
  padding: 4px 8px;
}
.mermaid-lightbox-close:hover {
  color: var(--text);
}
.mermaid-lightbox-hint {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-dim);
  font-size: 0.75rem;
  pointer-events: none;
}

/* ─── Hamburger (mobile) ─── */
.hamburger {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
  color: var(--text);
  font-size: 1.2rem;
  line-height: 1;
}

/* ─── Footer ─── */
.site-footer {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
  padding: 32px 48px;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
}
.site-footer a { color: var(--text-dim); }

/* ─── Mobile ─── */
@media (max-width: 1100px) {
  .content { grid-template-columns: 1fr; }
  .on-this-page { display: none; }
}

@media (max-width: 768px) {
  .hamburger { display: block; }
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: none;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
  }
  .content { padding: 60px 20px 80px; }
  .card-grid { grid-template-columns: 1fr; }
  .skill-grid { grid-template-columns: 1fr; }
  .page-nav { flex-direction: column; gap: 12px; }
  .page-nav a { max-width: 100%; }
}