/* ========================================
   FLOPI Documentation — Shared Styles
   Light-first theme with dark mode support
   ======================================== */

/* ── Default: Light Theme ── */
:root {
  --bg: #f8fafc;
  --surface: rgba(255,255,255,0.8);
  --surface-hover: rgba(255,255,255,0.95);
  --border: rgba(0,0,0,0.08);
  --border-hover: rgba(16,185,129,0.25);
  --primary: #059669;
  --primary-dim: rgba(16,185,129,0.12);
  --accent: #2563eb;
  --accent-dim: rgba(59,130,246,0.12);
  --danger: #dc2626;
  --danger-dim: rgba(239,68,68,0.1);
  --warning: #d97706;
  --warning-dim: rgba(245,158,11,0.1);
  --purple: #7c3aed;
  --purple-dim: rgba(139,92,246,0.1);
  --cyan: #0891b2;
  --cyan-dim: rgba(6,182,212,0.1);
  --text: #1f2937;
  --text-secondary: #4b5563;
  --text-dim: #6b7280;
  --code-bg: #f1f5f9;
  --code-text: #1e293b;
  --code-border: rgba(0,0,0,0.08);
  --sidebar-w: 280px;
  --header-h: 64px;
}

/* ── Dark Theme ── */
html.dark {
  --bg: #030712;
  --surface: rgba(17,24,39,0.6);
  --surface-hover: rgba(17,24,39,0.8);
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(16,185,129,0.2);
  --primary: #10b981;
  --primary-dim: rgba(16,185,129,0.15);
  --accent: #3b82f6;
  --accent-dim: rgba(59,130,246,0.15);
  --danger: #ef4444;
  --danger-dim: rgba(239,68,68,0.15);
  --warning: #f59e0b;
  --warning-dim: rgba(245,158,11,0.15);
  --purple: #8b5cf6;
  --purple-dim: rgba(139,92,246,0.15);
  --cyan: #06b6d4;
  --cyan-dim: rgba(6,182,212,0.15);
  --text: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-dim: #6b7280;
  --code-bg: rgba(0,0,0,0.4);
  --code-text: #e2e8f0;
  --code-border: rgba(255,255,255,0.06);
}

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

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(16,185,129,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(59,130,246,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(139,92,246,0.03) 0%, transparent 50%);
  background-attachment: fixed;
}
html.dark body {
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(16,185,129,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(59,130,246,0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(139,92,246,0.02) 0%, transparent 50%);
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(128,128,128,0.25); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(128,128,128,0.4); }

/* ── Theme Toggle ── */
.theme-toggle {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text-secondary); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.3s; font-size: 18px;
}
.theme-toggle:hover { border-color: var(--primary); color: var(--primary); }

/* ── Header ── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(248,250,252,0.85);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  display: flex; align-items: center;
  padding: 0 32px;
}
html.dark .site-header { background: rgba(3,7,18,0.75); }
.header-logo { display: flex; align-items: center; gap: 12px; }
.header-logo .icon { font-size: 28px; color: var(--primary); }
.header-logo h1 {
  font-size: 20px; font-weight: 700;
  background: linear-gradient(135deg, #10b981, #3b82f6);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  letter-spacing: 2px;
}
.header-nav { display: flex; gap: 4px; margin-left: 24px; flex-wrap: wrap; }
.header-nav a {
  padding: 6px 14px; border-radius: 8px; font-size: 13px; font-weight: 500;
  color: var(--text-secondary); text-decoration: none; transition: all 0.2s;
}
.header-nav a:hover { background: rgba(0,0,0,0.05); color: var(--text); }
html.dark .header-nav a:hover { background: rgba(255,255,255,0.05); }
.header-nav a.active { background: var(--primary-dim); color: var(--primary); }
.header-right {
  margin-left: auto;
  display: flex; align-items: center; gap: 16px;
}
.header-badge {
  padding: 4px 12px; border-radius: 20px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.5px;
}
.badge-version { background: var(--primary-dim); color: var(--primary); }
.badge-date { background: var(--accent-dim); color: var(--accent); }
.badge-status { background: var(--warning-dim); color: var(--warning); }

/* ── Sidebar ── */
.sidebar {
  position: fixed; top: var(--header-h); left: 0;
  width: var(--sidebar-w);
  height: calc(100vh - var(--header-h));
  background: rgba(248,250,252,0.75);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 24px 0; z-index: 50;
}
html.dark .sidebar { background: rgba(3,7,18,0.6); }
.sidebar-section { padding: 0 20px; margin-bottom: 24px; }
.sidebar-section-title {
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--text-dim); margin-bottom: 8px; padding-left: 12px;
}
.sidebar a {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: 10px;
  color: var(--text-secondary); text-decoration: none;
  font-size: 13px; font-weight: 400;
  transition: all 0.2s ease; border: 1px solid transparent;
}
.sidebar a:hover { background: rgba(16,185,129,0.08); color: var(--text); border-color: rgba(16,185,129,0.1); }
.sidebar a.active { background: rgba(16,185,129,0.12); color: var(--primary); font-weight: 500; border-color: rgba(16,185,129,0.15); }
.sidebar a .material-icons-round { font-size: 16px; opacity: 0.6; }
.sidebar a.active .material-icons-round { opacity: 1; color: var(--primary); }
.nav-num { font-size: 10px; font-weight: 600; color: var(--text-dim); min-width: 18px; text-align: center; }

/* ── Main Content ── */
.main {
  margin-left: var(--sidebar-w);
  margin-top: var(--header-h);
  padding: 40px 48px 120px;
  max-width: 960px;
}

/* ── Typography ── */
h2 { font-size: 28px; font-weight: 700; margin: 64px 0 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 12px; }
h2 .material-icons-round { font-size: 28px; color: var(--primary); }
h2:first-child { margin-top: 0; }
h3 { font-size: 20px; font-weight: 600; margin: 40px 0 12px; color: var(--text); }
h4 { font-size: 16px; font-weight: 600; margin: 28px 0 8px; color: var(--text-secondary); }
p { margin-bottom: 16px; color: var(--text-secondary); }
p strong { color: var(--text); font-weight: 600; }
ul, ol { margin: 0 0 16px 24px; color: var(--text-secondary); }
li { margin-bottom: 6px; }
li strong { color: var(--text); }

/* ── Cards ── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 24px; margin: 16px 0;
  backdrop-filter: blur(16px); transition: border-color 0.3s ease;
}
.card:hover { border-color: var(--border-hover); }
.card-header { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.card-icon { width: 36px; height: 36px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.card-icon.green { background: var(--primary-dim); color: var(--primary); }
.card-icon.blue { background: var(--accent-dim); color: var(--accent); }
.card-icon.red { background: var(--danger-dim); color: var(--danger); }
.card-icon.yellow { background: var(--warning-dim); color: var(--warning); }
.card-icon.purple { background: var(--purple-dim); color: var(--purple); }
.card-icon.cyan { background: var(--cyan-dim); color: var(--cyan); }
.card-title { font-size: 16px; font-weight: 600; color: var(--text); }
.card-subtitle { font-size: 12px; color: var(--text-dim); }

/* ── Callout ── */
.callout { border-radius: 12px; padding: 16px 20px; margin: 16px 0; display: flex; gap: 12px; font-size: 14px; }
.callout .material-icons-round { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.callout-problem { background: var(--danger-dim); border: 1px solid rgba(220,38,38,0.2); color: #991b1b; }
.callout-problem .material-icons-round { color: var(--danger); }
.callout-solution { background: var(--primary-dim); border: 1px solid rgba(16,185,129,0.2); color: #065f46; }
.callout-solution .material-icons-round { color: var(--primary); }
.callout-info { background: var(--accent-dim); border: 1px solid rgba(59,130,246,0.2); color: #1e40af; }
.callout-info .material-icons-round { color: var(--accent); }
.callout-warn { background: var(--warning-dim); border: 1px solid rgba(245,158,11,0.2); color: #92400e; }
.callout-warn .material-icons-round { color: var(--warning); }

html.dark .callout-problem { color: #fca5a5; }
html.dark .callout-solution { color: #6ee7b7; }
html.dark .callout-info { color: #93c5fd; }
html.dark .callout-warn { color: #fcd34d; }

/* ── Code ── */
code {
  font-family: 'JetBrains Mono', monospace; font-size: 13px;
  background: var(--code-bg); padding: 2px 6px; border-radius: 4px;
  color: var(--code-text); border: 1px solid var(--code-border);
}
pre {
  background: var(--code-bg); border: 1px solid var(--code-border);
  border-radius: 12px; padding: 20px; margin: 16px 0;
  overflow-x: auto; font-family: 'JetBrains Mono', monospace;
  font-size: 13px; line-height: 1.6; color: var(--code-text);
}
pre code { background: none; border: none; padding: 0; }
.code-block {
  background: var(--code-bg); border: 1px solid var(--code-border);
  border-radius: 12px; padding: 20px; margin: 16px 0;
  overflow-x: auto; font-family: 'JetBrains Mono', monospace;
  font-size: 13px; line-height: 1.6; color: var(--code-text);
}
.ddl-code {
  background: var(--code-bg); border: 1px solid var(--code-border);
  border-radius: 12px; padding: 20px; margin: 16px 0;
  overflow-x: auto; font-family: 'JetBrains Mono', monospace;
  font-size: 13px; line-height: 1.6; color: var(--code-text);
}

/* ── Syntax Highlighting (light default) ── */
.kw { color: #059669; font-weight: 600; }
.tp { color: #2563eb; }
.st { color: #d97706; }
.fn { color: #7c3aed; }
.cm { color: #6b7280; font-style: italic; }
.op { color: #dc2626; }

html.dark .kw { color: #34d399; }
html.dark .tp { color: #60a5fa; }
html.dark .st { color: #fbbf24; }
html.dark .fn { color: #c084fc; }
html.dark .cm { color: #6b7280; }
html.dark .op { color: #f87171; }

/* Inline colored spans in pre blocks (playbook.html etc.) */
pre span[style*="color:#60a5fa"],
pre span[style*="color:#34d399"],
pre span[style*="color:#c084fc"],
pre span[style*="color:#fbbf24"],
pre span[style*="color:#f472b6"],
pre span[style*="color:#6b7280"] {
  /* Keep hardcoded colors in dark mode — they look good on dark bg */
}

/* ── Table ── */
table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
th {
  text-align: left; padding: 10px 14px;
  background: rgba(0,0,0,0.04); border-bottom: 1px solid var(--border);
  color: var(--text-dim); font-weight: 600; font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
html.dark th { background: rgba(255,255,255,0.04); border-bottom-color: rgba(255,255,255,0.1); }
td { padding: 10px 14px; border-bottom: 1px solid var(--border); color: var(--text-secondary); }
tr:hover td { background: rgba(16,185,129,0.05); }
html.dark tr:hover td { background: rgba(255,255,255,0.02); }

/* ── Flow Diagram ── */
.flow-diagram {
  background: var(--code-bg); border: 1px solid var(--code-border);
  border-radius: 16px; padding: 32px; margin: 24px 0;
  font-family: 'JetBrains Mono', monospace; font-size: 13px;
  line-height: 2; color: var(--code-text); overflow-x: auto; white-space: pre;
}
.flow-highlight { color: var(--primary); font-weight: 600; }
.flow-accent { color: var(--accent); font-weight: 600; }
.flow-warning { color: var(--warning); font-weight: 600; }
.flow-purple { color: var(--purple); font-weight: 600; }
.flow-danger { color: var(--danger); font-weight: 600; }
.flow-dim { color: var(--text-dim); }
.flow-cyan { color: var(--cyan); font-weight: 600; }

/* ── Stats Grid ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin: 24px 0; }
.stats-grid > div { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; text-align: center; }
.stats-grid .stat-value { font-size: 32px; font-weight: 700; }
.stats-grid .stat-label { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

/* ── Module Cards ── */
.module-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 24px; margin: 16px 0;
  backdrop-filter: blur(16px); transition: border-color 0.3s ease;
}
.module-card:hover { border-color: var(--border-hover); }

/* ── Hero Section ── */
.hero-section {
  background: rgba(0,0,0,0.02); border: 1px solid var(--border);
  border-radius: 16px; padding: 40px; margin: 24px 0; text-align: center;
}
html.dark .hero-section { background: rgba(0,0,0,0.2); }

/* ── Tags ── */
.tag {
  display: inline-block; padding: 2px 10px; border-radius: 6px;
  font-size: 12px; font-weight: 500;
  border: 1px solid rgba(0,0,0,0.15); color: var(--text-secondary);
}
html.dark .tag { border-color: rgba(255,255,255,0.1); }

/* ── Copy Button (db-manual) ── */
.copy-btn {
  position: absolute; top: 12px; right: 12px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 12px;
  color: var(--text-secondary); cursor: pointer;
  font-size: 12px; font-family: 'Inter', sans-serif;
  transition: all 0.2s;
}
.copy-btn:hover { border-color: var(--primary); color: var(--primary); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 24px 20px 80px; }
  .header-nav { display: none; }
}