/* master-spec.css — NovaReelOS Master Spec document styles.
   Owns: spec layout, sidebar TOC, section cards, tables, diagrams.
   Does NOT own: sidebar nav (sidebar.css), app-shell layout. */

:root {
  --ms-bg: #000000;
  --ms-card: #111111;
  --ms-card-alt: #0D0D0D;
  --ms-border: #1E1E1E;
  --ms-coral: #FF4D6D;
  --ms-cyan: #00F2EA;
  --ms-purple: #A855F7;
  --ms-gold: #F59E0B;
  --ms-green: #22C55E;
  --ms-text: #D4D4D4;
  --ms-muted: #777;
  --ms-heading: #FFFFFF;
  --ms-code-bg: #0A0A0A;
}

/* ── Spec Layout ─────────────────────────────────────── */
.spec-layout {
  display: flex;
  min-height: 100vh;
  background: var(--ms-bg);
  color: var(--ms-text);
  font-family: 'Inter', -apple-system, sans-serif;
}

/* ── Left TOC ────────────────────────────────────────── */
.spec-toc {
  position: sticky;
  top: 0;
  width: 280px;
  min-width: 280px;
  height: 100vh;
  overflow-y: auto;
  padding: 1.5rem 0.75rem 2rem 1rem;
  border-right: 1px solid var(--ms-border);
  background: var(--ms-bg);
  scrollbar-width: thin;
  scrollbar-color: #222 transparent;
  z-index: 10;
}

.spec-toc-header {
  padding: 0 0.5rem 1rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--ms-border);
}
.spec-toc-brand {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--ms-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0 0 0.25rem;
}
.spec-toc-title {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--ms-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.spec-toc-controls {
  display: flex;
  gap: 0.5rem;
  padding: 0 0.5rem;
  margin-bottom: 0.75rem;
}
.spec-toc-controls button {
  flex: 1;
  padding: 0.3rem 0;
  border: 1px solid var(--ms-border);
  border-radius: 4px;
  background: transparent;
  color: var(--ms-muted);
  font-size: 0.6875rem;
  cursor: pointer;
  transition: all 0.15s;
}
.spec-toc-controls button:hover {
  color: #fff;
  border-color: var(--ms-coral);
}

.spec-toc-group {
  margin-bottom: 0.5rem;
}
.spec-toc-group-label {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ms-muted);
  padding: 0.5rem 0.5rem 0.25rem;
  opacity: 0.7;
}

.spec-toc a {
  display: block;
  font-size: 0.8rem;
  color: var(--ms-muted);
  text-decoration: none;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  border-left: 2px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
  line-height: 1.4;
}
.spec-toc a:hover {
  color: #fff;
  background: rgba(255,255,255,0.03);
}
.spec-toc a.active {
  color: var(--ms-coral);
  background: rgba(255,77,109,0.06);
  border-left-color: var(--ms-coral);
}
.spec-toc a .toc-num {
  display: inline-block;
  width: 1.5rem;
  color: var(--ms-muted);
  font-size: 0.7rem;
  opacity: 0.6;
}

/* ── Main Content ────────────────────────────────────── */
.spec-content {
  flex: 1;
  max-width: 900px;
  height: 100vh;
  overflow-y: auto;
  padding: 2.5rem 3rem 6rem;
  scroll-behavior: smooth;
}

/* ── Hero header ─────────────────────────────────────── */
.spec-hero {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--ms-border);
}
.spec-hero-badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ms-cyan);
  background: rgba(0,242,234,0.08);
  border: 1px solid rgba(0,242,234,0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.spec-hero h1 {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--ms-heading);
  margin: 0 0 0.75rem;
  line-height: 1.15;
}
.spec-hero h1 span { color: var(--ms-coral); }
.spec-hero-sub {
  font-size: 1rem;
  color: var(--ms-muted);
  line-height: 1.6;
  max-width: 640px;
}
.spec-hero-meta {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.25rem;
  font-size: 0.75rem;
  color: var(--ms-muted);
}
.spec-hero-meta span { display: flex; align-items: center; gap: 0.35rem; }
.spec-hero-meta .dot { color: var(--ms-coral); }

/* ── Sections ────────────────────────────────────────── */
.spec-section {
  margin-bottom: 2.5rem;
  border: 1px solid var(--ms-border);
  border-radius: 8px;
  background: var(--ms-card);
  overflow: hidden;
  transition: border-color 0.2s;
}
.spec-section:hover { border-color: rgba(255,255,255,0.08); }

.spec-section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.spec-section:not(.collapsed) .spec-section-header {
  border-bottom-color: var(--ms-border);
}

.spec-section-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.spec-section-num.coral   { background: rgba(255,77,109,0.12); color: var(--ms-coral); }
.spec-section-num.cyan    { background: rgba(0,242,234,0.12); color: var(--ms-cyan); }
.spec-section-num.purple  { background: rgba(168,85,247,0.12); color: var(--ms-purple); }
.spec-section-num.gold    { background: rgba(245,158,11,0.12); color: var(--ms-gold); }
.spec-section-num.green   { background: rgba(34,197,94,0.12); color: var(--ms-green); }

.spec-section-header h2 {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ms-heading);
  margin: 0;
  flex: 1;
}

.spec-section-toggle {
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  background: none;
  color: var(--ms-muted);
  cursor: pointer;
  transition: transform 0.2s;
  flex-shrink: 0;
}
.spec-section.collapsed .spec-section-toggle { transform: rotate(-90deg); }

.spec-section-body {
  padding: 1.5rem;
  max-height: 5000px;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.2s;
  opacity: 1;
}
.spec-section.collapsed .spec-section-body {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
}

/* ── Content typography ──────────────────────────────── */
.spec-section-body p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ms-text);
  margin: 0 0 1rem;
}
.spec-section-body h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ms-heading);
  margin: 1.75rem 0 0.75rem;
}
.spec-section-body h3:first-child { margin-top: 0; }
.spec-section-body h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ms-cyan);
  margin: 1.25rem 0 0.5rem;
}
.spec-section-body ul, .spec-section-body ol {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}
.spec-section-body li {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--ms-text);
  margin-bottom: 0.35rem;
}
.spec-section-body strong { color: var(--ms-heading); }
.spec-section-body em { color: var(--ms-cyan); font-style: normal; }

/* ── Code / Pre blocks ───────────────────────────────── */
.spec-code {
  background: var(--ms-code-bg);
  border: 1px solid var(--ms-border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--ms-text);
  overflow-x: auto;
  margin: 0.75rem 0 1.25rem;
  white-space: pre;
}
.spec-code .kw { color: var(--ms-coral); }
.spec-code .fn { color: var(--ms-cyan); }
.spec-code .cm { color: var(--ms-muted); }
.spec-code .str { color: var(--ms-green); }

/* ── Tables ──────────────────────────────────────────── */
.spec-table-wrap { overflow-x: auto; margin: 0.75rem 0 1.25rem; }
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.825rem;
}
.spec-table th {
  text-align: left;
  font-weight: 600;
  color: var(--ms-heading);
  border-bottom: 2px solid var(--ms-border);
  padding: 0.6rem 0.75rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.spec-table td {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--ms-border);
  color: var(--ms-text);
  vertical-align: top;
}
.spec-table tr:last-child td { border-bottom: none; }
.spec-table tr:hover td { background: rgba(255,255,255,0.02); }

/* ── Stat cards / metrics grids ──────────────────────── */
.spec-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  margin: 0.75rem 0 1.25rem;
}
.spec-stat {
  background: var(--ms-code-bg);
  border: 1px solid var(--ms-border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  text-align: center;
}
.spec-stat-value {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--ms-coral);
}
.spec-stat-label {
  font-size: 0.7rem;
  color: var(--ms-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
}

/* ── Diagram / flow blocks ───────────────────────────── */
.spec-diagram {
  background: var(--ms-code-bg);
  border: 1px solid var(--ms-border);
  border-radius: 6px;
  padding: 1.25rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--ms-text);
  overflow-x: auto;
  white-space: pre;
  margin: 0.75rem 0 1.25rem;
}

/* ── Inline badges ───────────────────────────────────── */
.spec-badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}
.spec-badge.coral   { background: rgba(255,77,109,0.15); color: var(--ms-coral); }
.spec-badge.cyan    { background: rgba(0,242,234,0.15); color: var(--ms-cyan); }
.spec-badge.purple  { background: rgba(168,85,247,0.15); color: var(--ms-purple); }
.spec-badge.gold    { background: rgba(245,158,11,0.15); color: var(--ms-gold); }
.spec-badge.green   { background: rgba(34,197,94,0.15); color: var(--ms-green); }

/* ── Split bar (revenue) ─────────────────────────────── */
.spec-split-bar {
  display: flex;
  height: 2rem;
  border-radius: 6px;
  overflow: hidden;
  margin: 0.75rem 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
}
.spec-split-bar .creator {
  background: var(--ms-cyan);
  color: #000;
  display: flex; align-items: center; justify-content: center;
}
.spec-split-bar .platform {
  background: var(--ms-coral);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 900px) {
  .spec-toc { display: none; }
  .spec-content { padding: 1.5rem 1.25rem 4rem; }
  .spec-hero h1 { font-size: 1.75rem; }
}
@media (max-width: 600px) {
  .spec-content { padding: 1rem 0.75rem 3rem; }
  .spec-section-body { padding: 1rem; }
  .spec-stats { grid-template-columns: 1fr 1fr; }
}