/* ==========================================
   ICCIT 2026 - CSS Variables & Design Tokens
   Aesthetic: Soft Warm Neutral + Logo Green Accent (Claude.ai inspired)
   ========================================== */

:root {
  /* Color Palette - Latar Belakang (Claude-inspired soft ivory & warm cream) */
  --bg-primary: #FAF8F5;
  --bg-secondary: #F4F1EA;
  --bg-tertiary: #EBE6DC;
  --bg-surface: #FFFFFF;
  --bg-surface-translucent: rgba(255, 255, 255, 0.85);
  --bg-glass: rgba(250, 248, 245, 0.88);
  
  /* Brand Green Colors (Extracted from ICCIT Logo) */
  --green-50: #F0FDF4;
  --green-100: #DCFCE7;
  --green-200: #BBF7D0;
  --green-300: #86EFAC;
  --green-400: #4ADE80;
  --green-500: #22C55E;
  --green-600: #16A34A; /* Primary Brand Green */
  --green-700: #15803D;
  --green-800: #166534;
  --green-900: #14532D;

  /* Logo Lime & Yellow Accents */
  --lime-500: #84CC16;
  --lime-600: #65A30D;
  --yellow-400: #FACC15;
  --yellow-500: #EAB308;
  --emerald-800: #065F46;

  /* Semantic Brand Tokens */
  --color-primary: var(--green-600);
  --color-primary-hover: var(--green-700);
  --color-primary-light: var(--green-50);
  --color-accent-lime: var(--lime-500);
  --color-accent-yellow: var(--yellow-500);

  /* Typography Neutral Colors (Claude.ai Charcoal & Warm Dark) */
  --text-main: #1D1B18;        /* Soft Charcoal Black */
  --text-secondary: #4A4642;   /* Warm Medium Dark */
  --text-muted: #78736E;       /* Soft Muted Gray */
  --text-light: #A8A29E;       /* Subtle Hint */
  --text-inverse: #FFFFFF;

  /* Borders & Dividers */
  --border-subtle: rgba(29, 27, 24, 0.08);
  --border-medium: rgba(29, 27, 24, 0.14);
  --border-brand: rgba(22, 163, 74, 0.22);
  --border-brand-strong: rgba(22, 163, 74, 0.45);

  /* Shadows & Glow Effects */
  --shadow-xs: 0 1px 2px rgba(29, 27, 24, 0.03);
  --shadow-sm: 0 2px 6px rgba(29, 27, 24, 0.04), 0 1px 2px rgba(29, 27, 24, 0.02);
  --shadow-md: 0 10px 30px rgba(29, 27, 24, 0.05), 0 2px 8px rgba(29, 27, 24, 0.02);
  --shadow-lg: 0 20px 45px rgba(29, 27, 24, 0.07), 0 4px 14px rgba(29, 27, 24, 0.03);
  --shadow-glass: 0 8px 32px 0 rgba(22, 163, 74, 0.08);
  --shadow-green-glow: 0 0 30px rgba(34, 197, 94, 0.18);

  /* Typography Font Families - Exact Claude.ai Editorial Book Serif Aesthetic */
  --font-serif: 'Newsreader', 'Lora', 'Source Serif 4', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Border Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 26px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  /* Container Widths */
  --container-max: 1200px;
  --container-narrow: 800px;
}