/* ──────────────────────────────────────────────
   AWARENESS × PERFORMANCE — Design Token System
   "Engineered Stillness" Visual Language
   ────────────────────────────────────────────── */

:root {
  /* ─── Color Palette ─── */
  
  /* Core */
  --obsidian: #0A0A0A;
  --pearl: #F5F1E8;
  --surface: #1A1A1A;
  --slate: #2E2E2E;
  --slate-mid: #707070;
  
  /* Premium Mode — Gold Accent */
  --gold: #C8B273;
  --gold-deep: #B8860B;
  --gold-glow: rgba(200, 178, 115, 0.15);
  --gold-subtle: rgba(200, 178, 115, 0.08);
  
  /* System Mode — Cyan Accent */
  --cyan: #00D4E0;
  --cyan-deep: #0099A8;
  --cyan-glow: rgba(0, 212, 224, 0.12);
  
  /* Semantic */
  --signal-red: #D94545;
  --signal-red-soft: rgba(217, 69, 69, 0.1);
  --success: #4CAF50;
  
  /* ─── Typography ─── */
  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  
  /* Scale */
  --text-hero: clamp(3rem, 6vw, 6rem);          /* 48–96px */
  --text-h1: clamp(2.5rem, 5vw, 4.5rem);        /* 40–72px */
  --text-h2: clamp(2rem, 3.5vw, 3.5rem);         /* 32–56px */
  --text-h3: clamp(1.5rem, 2vw, 2rem);           /* 24–32px */
  --text-body: clamp(1rem, 1.125vw, 1.125rem);   /* 16–18px */
  --text-small: 0.875rem;                         /* 14px */
  --text-eyebrow: 0.75rem;                        /* 12px */
  --text-cta: 0.875rem;                           /* 14px */
  
  /* Weights */
  --weight-light: 300;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  
  /* Line Heights */
  --leading-tight: 1.1;
  --leading-snug: 1.25;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;
  
  /* Tracking */
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.1em;
  --tracking-wider: 0.15em;
  
  /* ─── Spacing ─── */
  --space-xs: 0.5rem;     /* 8px */
  --space-sm: 1rem;       /* 16px */
  --space-md: 1.5rem;     /* 24px */
  --space-lg: 2.5rem;     /* 40px */
  --space-xl: 4rem;       /* 64px */
  --space-2xl: 6rem;      /* 96px */
  --space-3xl: 8rem;      /* 128px */
  --space-section: clamp(6rem, 12vh, 10rem);
  
  /* ─── Container ─── */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-text: 840px;
  --container-padding: clamp(1.5rem, 4vw, 3rem);
  
  /* ─── Easing — "Engineered Stillness" ─── */
  --ease-smooth: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-dramatic: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  
  /* ─── Durations ─── */
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 700ms;
  --duration-hero: 800ms;
  --duration-reveal: 700ms;
  --duration-chart: 1200ms;
  
  /* ─── Borders ─── */
  --border-subtle: 1px solid rgba(245, 241, 232, 0.08);
  --border-gold: 1px solid var(--gold);
  --border-gold-subtle: 1px solid rgba(200, 178, 115, 0.3);
  --border-cyan: 1px solid var(--cyan);
  --border-red: 1px solid var(--signal-red);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* ─── Shadows ─── */
  --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.4);
  --shadow-gold-glow: 0 4px 20px rgba(200, 178, 115, 0.15);
  
  /* ─── Z-Index ─── */
  --z-base: 1;
  --z-sticky: 100;
  --z-overlay: 200;
  --z-modal: 300;
}