/**
 * T&R Ihr Autohaus GmbH — Core Design Tokens
 * Master CSS Custom Properties for Porsche Supercar Experience
 * 
 * Palette:
 * - T&R Bronze Gold: #C59C5F (oklch(71% 0.09 78))
 * - T&R Racing Green: #37aa32 (oklch(65% 0.20 142))
 * - Obsidian Dark: #222222 (oklch(23% 0 0))
 * - Carbon Graphite: #303030 (oklch(28% 0 0))
 */

:root {
  /* ==========================================================================
     Surfaces & Canvas
     ========================================================================== */
  --color-paper: #ffffff;
  --color-paper-oklch: oklch(100% 0 0);
  --color-paper-2: #F7F8F9;
  --color-paper-2-oklch: oklch(97.5% 0.003 260);
  --color-paper-dark: #222222;
  --color-paper-dark-oklch: oklch(23% 0 0);
  --color-paper-dark-2: #303030;
  --color-paper-dark-2-oklch: oklch(28% 0 0);
  --color-paper-dark-3: #181818;
  --color-paper-dark-3-oklch: oklch(18% 0 0);

  /* Glassmorphism Surface Layers */
  --surface-glass: rgba(34, 34, 34, 0.75);
  --surface-glass-card: rgba(48, 48, 48, 0.65);
  --surface-glass-header: rgba(34, 34, 34, 0.88);
  --surface-glass-hud: rgba(24, 24, 24, 0.85);

  /* ==========================================================================
     Inks & Typography Colors
     ========================================================================== */
  --color-ink: #222222;
  --color-ink-oklch: oklch(23% 0 0);
  --color-ink-2: #54595F;
  --color-ink-2-oklch: oklch(46% 0.01 260);
  --color-ink-muted: #A0A5AA;
  --color-ink-muted-oklch: oklch(58% 0.008 260);
  --color-ink-light: #F7F8F9;
  --color-ink-light-oklch: oklch(98% 0.002 260);
  --color-ink-light-muted: rgba(247, 248, 249, 0.65);
  --color-ink-light-subtle: rgba(247, 248, 249, 0.40);

  /* ==========================================================================
     Rules, Dividers & Borders
     ========================================================================== */
  --color-rule: oklch(90% 0.005 260);
  --color-rule-hex: #e2e4e7;
  --color-rule-dark: rgba(255, 255, 255, 0.10);
  --color-rule-dark-oklch: oklch(33% 0.01 78);
  --color-rule-subtle: rgba(255, 255, 255, 0.05);
  --color-rule-accent: rgba(55, 170, 50, 0.35);

  /* ==========================================================================
     Brand Accents
     ========================================================================== */
  /* T&R Iconic Racing Green (Primary Brand Accent) */
  --color-accent: #37aa32;
  --color-accent-oklch: oklch(65% 0.20 142);
  --color-accent-hover: #40c03b;
  --color-accent-active: #2e8f2a;
  --color-accent-ink: #ffffff;
  --color-accent-glow: rgba(55, 170, 50, 0.35);
  --color-focus: #37aa32;

  /* T&R Iconic Racing Green (Direct Alias) */
  --color-brand-green: #37aa32;
  --color-brand-green-oklch: oklch(65% 0.20 142);
  --color-brand-green-hover: #40c03b;
  --color-brand-green-active: #2e8f2a;
  --color-brand-green-ink: #ffffff;
  --color-brand-green-glow: rgba(55, 170, 50, 0.35);

  /* T&R Warm Bronze Gold (Secondary Heritage Tone) */
  --color-brand-gold: #C59C5F;
  --color-brand-gold-oklch: oklch(71% 0.09 78);
  --color-brand-gold-hover: #d4ae73;
  --color-brand-gold-ink: #18140c;

  /* Functional Status Colors */
  --color-danger: #e53935;
  --color-warning: #fbc02d;
  --color-info: #0288d1;

  /* ==========================================================================
     Typography
     ========================================================================== */
  --font-display: "Cabinet Grotesk", "Arial Black", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: "Geist", "Inter", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  --font-mono: "Geist Mono", "JetBrains Mono", monospace;

  /* 4-pt Spacing Scale */
  --space-3xs: 4px;
  --space-2xs: 8px;
  --space-xs: 12px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 80px;
  --space-4xl: 112px;

  /* Type Scale (1.25 Major Third Scale) */
  --text-xs: 0.75rem;       /* 12px */
  --text-sm: 0.875rem;      /* 14px */
  --text-base: 1rem;         /* 16px */
  --text-md: 1.25rem;       /* 20px */
  --text-lg: 1.563rem;      /* 25px */
  --text-xl: 1.953rem;      /* 31.25px */
  --text-2xl: 2.441rem;     /* 39px */
  --text-display: 3.052rem;   /* 48.8px */
  --text-hero: clamp(2.5rem, 6vw, 4.5rem);

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  /* Letter Spacing */
  --tracking-tighter: -0.03em;
  --tracking-tight: -0.015em;
  --tracking-normal: 0;
  --tracking-wide: 0.04em;
  --tracking-wider: 0.08em;
  --tracking-widest: 0.14em;

  /* ==========================================================================
     Transitions & Motion
     ========================================================================== */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 180ms;
  --dur-base: 240ms;
  --dur-slow: 320ms;
  --dur-glance: 450ms;

  /* ==========================================================================
     Border Radii & Layout Dimensions
     ========================================================================== */
  --radius-xs: 2px;
  --radius-card: 4px;
  --radius-input: 4px;
  --radius-btn: 4px;
  --radius-pill: 9999px;

  --container-max-width: 1140px;
  --container-wide-max: 1360px;
  --header-height: 76px;

  /* Z-Index Hierarchy */
  --z-base: 1;
  --z-elevated: 10;
  --z-sticky: 50;
  --z-overlay: 100;
  --z-hud: 200;
  --z-nav: 500;
  --z-modal: 1000;
  --z-toast: 2000;

  /* Shadows & Elevation */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-card-hover: 0 14px 36px rgba(0, 0, 0, 0.6), 0 0 20px rgba(55, 170, 50, 0.2);
  --shadow-glow-gold: 0 0 24px rgba(55, 170, 50, 0.35);
  --shadow-glow-green: 0 0 24px rgba(55, 170, 50, 0.4);
}