/* ==========================================================================
   Design Tokens - KIC Security (kic-mix Hybrid Edition)
   Gemini版ベース + Claude互換エイリアス
   ========================================================================== */

:root {
  /* --- Primary Colors --- */
  --color-navy: #1a2744;
  --color-navy-light: #243356;
  --color-navy-dark: #111b30;
  --color-gold: #c4a265;
  --color-gold-light: #d4b87a;
  --color-gold-dark: #a8894f;
  /* 白背景上のテキスト用（WCAG AA 4.5:1 を満たす濃いゴールド） */
  --color-gold-text: #8a6d3f;

  /* --- Warm Accent (Gemini: 安心感を強調する暖色系) --- */
  --color-warm: #e8f0e8;
  --color-warm-accent: #2d8a4e;
  --color-warm-light: #f0f7f0;
  --color-safety-green: #16a34a;
  --color-safety-bg: rgba(22, 163, 74, 0.08);

  /* --- Claude互換エイリアス --- */
  --color-green: var(--color-safety-green);

  /* --- Neutrals --- */
  --color-white: #ffffff;
  --color-off-white: #f7f8fa;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  --color-black: #000000;
  --color-red: #dc2626;

  /* --- Typography --- */
  --font-family: 'Noto Sans JP', sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  --font-weight-black: 900;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  --line-height-tight: 1.25;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;

  /* --- Spacing --- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* --- Layout --- */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-padding: var(--space-4);

  /* --- Border Radius --- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* --- Shadows --- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-gold: 0 4px 14px rgba(196, 162, 101, 0.3);

  /* --- Transitions --- */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* --- Z-index --- */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-overlay: 400;
  --z-modal: 500;

  /* --- Header --- */
  --header-height: 70px;
  --topbar-height: 40px;

  /* --- Mobile Sticky CTA --- */
  --sticky-cta-height: 72px;
}