/* ==========================================================================
   CSS VARIABLES & DESIGN TOKENS
   Lọ Thủy Tinh Ký Ức (Memory Jar)
   ========================================================================== */

:root {
  /* Brand & Theme Colors (Light Theme - Warm Minimal / Editorial) */
  --bg-primary: #FAF7F2;
  --bg-secondary: #F4EFE6;
  --bg-surface: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.75);
  --bg-glass-border: rgba(220, 212, 198, 0.4);
  
  --text-main: #2D2926;
  --text-muted: #736B63;
  --text-light: #9E948A;
  
  --accent-primary: #8C7A6B;
  --accent-secondary: #D4C3B3;
  --accent-hover: #736355;
  --accent-subtle: #F0E8DF;
  
  --navy-dark: #1A2238;
  --border-light: #E8E2D7;
  --border-strong: #D1C7B7;

  /* Paper Color Variants for Memory Notes */
  --paper-parchment: #FDFBF7;
  --paper-sakura: #FDF0F0;
  --paper-sage: #F0F4EF;
  --paper-sky: #F0F5FA;
  --paper-sunset: #FDF4EB;
  --paper-midnight: #F3EFF8;
  --paper-amber: #FAF4E5;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(45, 41, 38, 0.04);
  --shadow-md: 0 6px 20px rgba(45, 41, 38, 0.07);
  --shadow-lg: 0 12px 32px rgba(45, 41, 38, 0.1);
  --shadow-glass: 0 8px 32px 0 rgba(140, 122, 107, 0.08);

  /* Typography */
  --font-serif: 'Playfair Display', 'Crimson Pro', 'Lora', serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-handwriting: 'Caveat', 'Marck Script', cursive, sans-serif;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2.5rem;
  --spacing-xxl: 4rem;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Dark Mode Tokens */
[data-theme="dark"] {
  --bg-primary: #0F131D;
  --bg-secondary: #171E2C;
  --bg-surface: #1E2638;
  --bg-glass: rgba(30, 38, 56, 0.7);
  --bg-glass-border: rgba(255, 255, 255, 0.08);

  --text-main: #F4F1EA;
  --text-muted: #A39D93;
  --text-light: #6C7383;

  --accent-primary: #C5B5A5;
  --accent-secondary: #4A423B;
  --accent-hover: #DBD1C5;
  --accent-subtle: #272F42;

  --navy-dark: #0A0D14;
  --border-light: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);

  --paper-parchment: #1C2331;
  --paper-sakura: #291B22;
  --paper-sage: #1B2621;
  --paper-sky: #1A2433;
  --paper-sunset: #2A211B;
  --paper-midnight: #231B2A;
  --paper-amber: #262116;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
}