/* ==========================================================================
   THEME.CSS — Design Tokens, Typography & Color Palettes
   Referenced from: mtips5s_30_VPS3_UX_UI_Design
   ========================================================================== */

:root {
  /* Color Palette - Dark Obsidian (Default) */
  --bg-app: #080a10;
  --bg-sidebar: #0d111b;
  --bg-surface: #121826;
  --bg-surface-elevated: #182033;
  --bg-card: rgba(18, 24, 38, 0.75);
  --bg-glass: rgba(18, 24, 38, 0.65);
  --bg-input: #151c2c;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: #6366f1;
  --border-accent: rgba(99, 102, 241, 0.35);

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-inverse: #0b0f19;

  /* Brand Accents */
  --accent-primary: #6366f1;       /* Indigo */
  --accent-primary-hover: #4f46e5;
  --accent-secondary: #8b5cf6;     /* Purple */
  --accent-cyan: #06b6d4;          /* Cyan */
  --accent-emerald: #10b981;       /* Green */
  --accent-rose: #f43f5e;          /* Red / Alert */
  --accent-amber: #f59e0b;         /* Gold / SLA Warning */

  /* Gradient Tokens */
  --grad-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --grad-surface: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 100%);
  --grad-glow: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  --grad-cyan: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --grad-emerald: linear-gradient(135deg, #10b981 0%, #059669 100%);

  /* Shadows & Elevation */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 24px rgba(99, 102, 241, 0.25);

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 9999px;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Menlo, Monaco, Consolas, monospace;

  /* Spacing Scale (8pt Grid System) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-app: #f8fafc;
  --bg-sidebar: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-glass: rgba(255, 255, 255, 0.8);
  --bg-input: #f1f5f9;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-focus: #4f46e5;
  --border-accent: rgba(79, 70, 229, 0.25);

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --text-inverse: #ffffff;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);
}

/* Dark Mode Bridge for Elements */
[data-theme="dark"],
[data-theme="dark"] body {
  --bg: #080a10 !important;
  --card: #121826 !important;
  --ink: #f1f5f9 !important;
  --muted: #94a3b8 !important;
  --line: rgba(255, 255, 255, 0.08) !important;
  --blue-soft: #182033 !important;
  background-color: #080a10 !important;
  color: #f1f5f9 !important;
}

[data-theme="dark"] .card,
[data-theme="dark"] .calendar-day,
[data-theme="dark"] .search,
[data-theme="dark"] .filter-select,
[data-theme="dark"] input,
[data-theme="dark"] textarea,
[data-theme="dark"] select,
[data-theme="dark"] dialog {
  background-color: #121826 !important;
  color: #f1f5f9 !important;
  border-color: rgba(255, 255, 255, 0.08) !important;
}

[data-theme="dark"] .secondary {
  background: #182033 !important;
  color: #f1f5f9 !important;
}

[data-theme="dark"] .list-item,
[data-theme="dark"] .table td,
[data-theme="dark"] .table th {
  border-color: rgba(255, 255, 255, 0.08) !important;
  color: #f1f5f9 !important;
}

[data-theme="dark"] dialog::backdrop {
  background: rgba(0, 0, 0, 0.75) !important;
}