/* ==========================================================================
   KanaGate Minimal Showcase - Design Tokens
   ========================================================================== */

:root {
  /* Canvas & Obsidian Surfaces (Dark Mode Default) */
  --bg-deep: #050608;
  --bg-canvas: #090b10;
  --bg-surface: #10131c;
  --bg-surface-elevated: #161b28;
  --bg-glass: rgba(16, 19, 28, 0.75);

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-active: rgba(225, 29, 72, 0.5);

  /* Brand Accents - Torii Crimson & Vermilion */
  --crimson-500: #e11d48;
  --crimson-600: #be123c;
  --crimson-glow: rgba(225, 29, 72, 0.35);
  --crimson-subtle: rgba(225, 29, 72, 0.12);

  /* Gold / Amber Accents */
  --gold-400: #fbbf24;
  --gold-glow: rgba(251, 191, 36, 0.25);

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #728298;
  --text-dim: #334155;

  /* Official Logotype Colors */
  --logotype-gate-color: #ffffff;
  /* White in dark mode */

  /* Subtle Background Motif Patterns - Separate Opacity Controls */
  --pattern-motif-color: #ffffff;
  --pattern-seigaiha-url: url('../../assets/Seigaiha-dark.svg');
  --pattern-seigaiha-opacity: 0.25;
  --pattern-asanoha-opacity: 0.30;
  --pattern-shippo-opacity: 0.30;

  /* Phone Hardware Frame */
  --phone-frame-bg: #000000;
  --phone-frame-ring-1: #181c28;
  --phone-frame-ring-2: #262c3e;
  --phone-frame-shadow: 0 30px 80px rgba(0, 0, 0, 0.9), 0 0 60px rgba(225, 29, 72, 0.2);

  /* Controls & Overlays */
  --nav-bg: rgba(5, 6, 8, 0.88);
  --tracker-bg: rgba(255, 255, 255, 0.2);
  --tracker-hover: rgba(255, 255, 255, 0.8);
  --chip-bg: #141722;
  /* Solid dark surface, unaffected by background patterns */
  --chip-border: #262c3e;
  --chip-active-bg: #220e17;
  /* Solid active crimson base */
  --input-bg: rgba(12, 14, 22, 0.95);
  --input-border: rgba(255, 255, 255, 0.14);
  --ambient-grid-color: rgba(255, 255, 255, 0.015);

  /* Typography */
  --font-brand: 'Montserrat', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', 'Montserrat', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-japanese: 'Noto Sans JP', 'Hiragino Sans', Meiryo, sans-serif;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max: 1200px;
  --header-height: 72px;
}

/* ==========================================================================
   Light Mode Design Tokens
   ========================================================================== */
[data-theme="light"] {
  /* Canvas & Paper Surfaces */
  --bg-deep: #f8fafc;
  --bg-canvas: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.88);

  /* Borders & Dividers */
  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-medium: rgba(15, 23, 42, 0.16);
  --border-active: rgba(190, 17, 52, 0.6);

  /* Brand Accents - Rich Torii Vermilion */
  --crimson-500: #be1134;
  --crimson-600: #9f0e2b;
  --crimson-glow: rgba(190, 17, 52, 0.22);
  --crimson-subtle: rgba(190, 17, 52, 0.08);

  /* Gold / Amber Accents */
  --gold-400: #d97706;
  --gold-glow: rgba(217, 119, 6, 0.2);

  /* Text Colors */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-dim: #94a3b8;

  /* Official Logotype Colors (#353c47 in light mode as requested) */
  --logotype-gate-color: #353c47;

  /* Subtle Background Motif Patterns - Separate Opacity Controls */
  --pattern-motif-color: #be1134;
  --pattern-seigaiha-url: url('../../assets/Seigaiha.svg');
  --pattern-seigaiha-opacity: 0.25;
  --pattern-asanoha-opacity: 0.30;
  --pattern-shippo-opacity: 0.30;

  /* Phone Hardware Frame (Silver/Space Titanium) */
  --phone-frame-bg: #1e293b;
  --phone-frame-ring-1: #cbd5e1;
  --phone-frame-ring-2: #94a3b8;
  --phone-frame-shadow: 0 25px 60px rgba(15, 23, 42, 0.18), 0 0 35px rgba(190, 17, 52, 0.12);

  /* Controls & Overlays */
  --nav-bg: rgba(248, 250, 252, 0.88);
  --tracker-bg: rgba(15, 23, 42, 0.22);
  --tracker-hover: rgba(15, 23, 42, 0.7);
  --chip-bg: #ffffff;
  /* Solid white surface, unaffected by background patterns */
  --chip-border: #e2e8f0;
  --chip-active-bg: #fff1f2;
  /* Solid active light crimson base */
  --input-bg: rgba(255, 255, 255, 0.96);
  --input-border: rgba(15, 23, 42, 0.16);
  --ambient-grid-color: rgba(15, 23, 42, 0.035);
}