/* ── IMDAA Studio Documentation Portal ────────────────────────────────── */

:root {
  --doc-sidebar-w: 260px;
  --doc-accent: #00bcd4;
  --doc-accent-dim: rgba(0, 188, 212, 0.1);
  --doc-green: #22c55e;
  --doc-orange: #f59e0b;
  --doc-red: #ef4444;
}

/* ── Layout ───────────────────────────────────────────────────────────── */
.doc-layout { display: flex; min-height: 100vh; }

.doc-sidebar {
  width: var(--doc-sidebar-w);
  background: var(--surface, #f0ede4);
  border-right: 1px solid var(--border, #ddd);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; bottom: 0; z-index: 100; overflow-y: auto;
}

.doc-sidebar-header { padding: 20px 18px 16px; border-bottom: 1px solid var(--border, #ddd); }

.doc-sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--fg, #1a1a1a);
}

.doc-sidebar-brand-icon {
  width: 30px; height: 30px; border-radius: 6px;
  background: linear-gradient(135deg, var(--doc-accent), #0097a7);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 0.7rem; font-weight: 800;
}

.doc-sidebar-brand-text {
  font-family: var(--font-mono, monospace); font-size: 0.78rem;
  font-weight: 800; letter-spacing: 0.5px;
}

.doc-sidebar-version {
  font-size: 0.58rem; color: var(--fg-dim, #888);
  margin-top: 4px; font-family: var(--font-mono, monospace);
}

.doc-nav { padding: 12px 0; flex: 1; }
.doc-nav-group { padding: 0 14px; margin-bottom: 8px; }

.doc-nav-group-title {
  font-size: 0.55rem; font-weight: 800; color: var(--fg-dim, #888);
  letter-spacing: 1.5px; padding: 6px 8px; margin-bottom: 2px;
}

.doc-nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: 6px;
  font-family: var(--font-mono, monospace); font-size: 0.68rem; font-weight: 600;
  color: var(--fg-dim, #666); cursor: pointer;
  border: none; background: none; width: 100%; text-align: left; transition: all 0.15s;
}

.doc-nav-item:hover { background: var(--doc-accent-dim); color: var(--fg, #1a1a1a); }
.doc-nav-item.active { background: var(--doc-accent-dim); color: var(--doc-accent); font-weight: 800; }
.doc-nav-item i { width: 16px; text-align: center; font-size: 0.72rem; }

.doc-sidebar-footer {
  padding: 14px 18px; border-top: 1px solid var(--border, #ddd);
  font-size: 0.6rem; color: var(--fg-dim, #888);
}
.doc-sidebar-footer a { color: var(--doc-accent); text-decoration: none; }

/* ── Main Content ─────────────────────────────────────────────────────── */
.doc-main {
  flex: 1; margin-left: var(--doc-sidebar-w);
  padding: 32px 40px 80px; max-width: 860px;
}

.doc-page { display: none; }
.doc-page.active { display: block; }

.doc-page h1 { font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; }
.doc-page h2 {
  font-size: 1.1rem; font-weight: 700; margin: 28px 0 12px;
  padding-bottom: 8px; border-bottom: 1px solid var(--border, #ddd);
  scroll-margin-top: 24px;
}
.doc-page h3 {
  font-size: 0.9rem; font-weight: 700; margin: 20px 0 8px;
  scroll-margin-top: 24px;
}
.doc-page p, .doc-page li { font-size: 0.82rem; line-height: 1.7; margin-bottom: 10px; }
.doc-page ul, .doc-page ol { padding-left: 20px; margin-bottom: 14px; }
.doc-page li { margin-bottom: 4px; }
.doc-subtitle { font-size: 0.82rem; color: var(--fg-dim, #888); margin-bottom: 12px; }

/* ── Studio Action Link ───────────────────────────────────────────────── */
.doc-studio-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono, monospace); font-size: 0.7rem; font-weight: 700;
  color: var(--doc-accent); text-decoration: none;
  padding: 6px 14px; border: 1px solid rgba(0, 188, 212, 0.3);
  border-radius: 6px; background: var(--doc-accent-dim);
  margin-bottom: 18px; transition: all 0.2s;
}
.doc-studio-link:hover { background: rgba(0, 188, 212, 0.15); border-color: var(--doc-accent); }

/* ── On-Page TOC ──────────────────────────────────────────────────────── */
.doc-toc {
  border: 1px solid var(--border, #ddd); border-radius: 8px;
  padding: 14px 18px; margin-bottom: 24px; background: var(--surface, #faf8f3);
}

.doc-toc-label {
  font-size: 0.58rem; font-weight: 800; letter-spacing: 1.5px;
  color: var(--fg-dim, #888); margin-bottom: 8px;
}

.doc-toc-list { list-style: none; padding: 0; margin: 0; }

.doc-toc-list li {
  margin: 0; padding: 0;
}

.doc-toc-list a {
  display: block; padding: 4px 0; font-size: 0.72rem;
  font-family: var(--font-mono, monospace); color: var(--fg-dim, #666);
  text-decoration: none; transition: color 0.15s;
}

.doc-toc-list a:hover { color: var(--doc-accent); }
.doc-toc-list a.sub { padding-left: 16px; font-size: 0.68rem; }

/* ── Prev/Next Nav ────────────────────────────────────────────────────── */
.doc-page-nav {
  display: flex; justify-content: space-between; align-items: stretch;
  gap: 12px; margin-top: 40px; padding-top: 24px;
  border-top: 1px solid var(--border, #ddd);
}

.doc-page-nav-btn {
  flex: 1; padding: 14px 18px; border: 1px solid var(--border, #ddd);
  border-radius: 8px; background: var(--surface, #fff);
  cursor: pointer; text-decoration: none; transition: all 0.2s;
  display: flex; flex-direction: column; gap: 4px;
}

.doc-page-nav-btn:hover { border-color: var(--doc-accent); }

.doc-page-nav-btn .nav-dir {
  font-size: 0.58rem; font-weight: 800; letter-spacing: 1px;
  color: var(--fg-dim, #888);
}

.doc-page-nav-btn .nav-label {
  font-size: 0.78rem; font-weight: 700; color: var(--doc-accent);
  font-family: var(--font-mono, monospace);
}

.doc-page-nav-btn.next { text-align: right; }
.doc-page-nav-btn.placeholder { visibility: hidden; }

/* ── Code Blocks ──────────────────────────────────────────────────────── */
.doc-code {
  background: #0d1117; color: #c9d1d9;
  font-family: var(--font-mono, monospace); font-size: 0.72rem;
  padding: 14px 18px; border-radius: 8px; margin: 12px 0 16px;
  overflow-x: auto; border: 1px solid #30363d; line-height: 1.7;
  white-space: pre; position: relative;
}

.doc-code .pfx { color: #7ee787; user-select: none; }
.doc-code .comment { color: #8b949e; }
.doc-code .kw { color: #ff7b72; }
.doc-code .fn { color: #d2a8ff; }
.doc-code .str { color: #a5d6ff; }
.doc-code .num { color: #79c0ff; }

.doc-code-copy {
  position: absolute; top: 8px; right: 8px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  color: #8b949e; border-radius: 5px; padding: 4px 10px;
  font-family: var(--font-mono, monospace); font-size: 0.6rem;
  cursor: pointer; transition: all 0.15s; z-index: 2;
}
.doc-code-copy:hover { background: rgba(255,255,255,0.15); color: #c9d1d9; }

code.doc-inline {
  font-family: var(--font-mono, monospace); font-size: 0.78em;
  background: var(--surface, #f0ede4); padding: 2px 6px;
  border-radius: 4px; border: 1px solid var(--border, #ddd);
}

/* ── Cards ────────────────────────────────────────────────────────────── */
.doc-card {
  border: 1px solid var(--border, #ddd); border-radius: 10px;
  padding: 18px 20px; margin-bottom: 14px; background: var(--surface, #fff);
  transition: all 0.2s;
}
.doc-card:hover { border-color: var(--doc-accent); }
.doc-card-title { font-size: 0.85rem; font-weight: 700; margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.doc-card-body { font-size: 0.75rem; line-height: 1.6; color: var(--fg-dim, #666); }

/* ── Formula ──────────────────────────────────────────────────────────── */
.doc-formula {
  background: var(--doc-accent-dim); border: 1px solid rgba(0, 188, 212, 0.2);
  border-radius: 8px; padding: 14px 18px; margin: 12px 0;
  font-family: var(--font-mono, monospace); font-size: 0.75rem; line-height: 1.8;
}
.doc-formula .label { font-size: 0.62rem; font-weight: 800; color: var(--doc-accent); letter-spacing: 1px; margin-bottom: 6px; }

/* ── Alerts ───────────────────────────────────────────────────────────── */
.doc-alert {
  border-radius: 8px; padding: 12px 16px; margin: 14px 0;
  font-size: 0.75rem; line-height: 1.6; display: flex; gap: 10px;
}
.doc-alert-icon { font-size: 0.9rem; flex-shrink: 0; margin-top: 1px; }
.doc-alert.info { background: rgba(0,188,212,0.06); border: 1px solid rgba(0,188,212,0.2); }
.doc-alert.warning { background: rgba(245,158,11,0.06); border: 1px solid rgba(245,158,11,0.2); }
.doc-alert.success { background: rgba(34,197,94,0.06); border: 1px solid rgba(34,197,94,0.2); }

/* ── Table ────────────────────────────────────────────────────────────── */
.doc-table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 0.75rem; }
.doc-table th, .doc-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border, #ddd); }
.doc-table th { font-weight: 700; font-size: 0.68rem; letter-spacing: 0.5px; color: var(--fg-dim, #888); background: var(--surface, #f5f5f5); }

/* ── Steps ────────────────────────────────────────────────────────────── */
.doc-step { display: flex; gap: 16px; margin-bottom: 20px; padding: 16px; border: 1px solid var(--border, #ddd); border-radius: 10px; background: var(--surface, #fff); }
.doc-step-num {
  width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--doc-accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono, monospace); font-size: 0.72rem; font-weight: 800;
  color: var(--doc-accent); flex-shrink: 0;
}
.doc-step-content { flex: 1; }
.doc-step-title { font-size: 0.85rem; font-weight: 700; margin-bottom: 6px; }
.doc-step-body { font-size: 0.75rem; line-height: 1.6; color: var(--fg-dim, #666); }

/* ── Module Grid ──────────────────────────────────────────────────────── */
.doc-module-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; margin: 16px 0; }

/* ── Mobile ───────────────────────────────────────────────────────────── */
.doc-mobile-toggle {
  display: none; position: fixed; top: 12px; left: 12px; z-index: 200;
  background: var(--surface, #fff); border: 1px solid var(--border, #ddd);
  border-radius: 6px; padding: 8px 12px; cursor: pointer; font-size: 0.8rem;
}

@media (max-width: 768px) {
  .doc-sidebar { transform: translateX(-100%); transition: transform 0.3s; }
  .doc-sidebar.open { transform: translateX(0); }
  .doc-main { margin-left: 0; padding: 24px 16px 80px; }
  .doc-mobile-toggle { display: block; }
}