/* ============================================
   TRIVEXA — Design Token System
   Ultra-Premium Technology Brand
   ============================================ */

:root {
  /* ── Color System ── */
  --bg-primary: #050816;
  --bg-secondary: #0B1020;
  --bg-tertiary: #0f1629;
  --bg-card: rgba(11, 16, 32, 0.6);
  --bg-card-hover: rgba(11, 16, 32, 0.8);
  --bg-glass: rgba(11, 16, 32, 0.4);
  --bg-nav: rgba(5, 8, 22, 0.85);

  /* Gold Accent System */
  --gold: #D4AF37;
  --gold-highlight: #E1C564;
  --gold-deep: #A67C00;
  --gold-subtle: rgba(212, 175, 55, 0.08);
  --gold-glow: rgba(212, 175, 55, 0.25);
  --gold-border: rgba(212, 175, 55, 0.12);
  --gold-border-hover: rgba(212, 175, 55, 0.35);

  /* Text Colors */
  --text-primary: #FFFFFF;
  --text-secondary: #B8C0CC;
  --text-tertiary: #6B7280;
  --text-gold: #D4AF37;

  /* Glow & Effects */
  --glow-blue: rgba(59, 130, 246, 0.12);
  --glow-gold: rgba(212, 175, 55, 0.15);
  --glow-white: rgba(255, 255, 255, 0.03);

  /* Gradient System */
  --gradient-gold: linear-gradient(135deg, #D4AF37, #E1C564, #A67C00);
  --gradient-gold-text: linear-gradient(135deg, #D4AF37 0%, #E1C564 50%, #D4AF37 100%);
  --gradient-dark: linear-gradient(180deg, #050816 0%, #0B1020 100%);
  --gradient-card: linear-gradient(135deg, rgba(212, 175, 55, 0.05) 0%, rgba(11, 16, 32, 0.6) 100%);
  --gradient-hero: radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
  --gradient-section: radial-gradient(ellipse at 50% 0%, rgba(212, 175, 55, 0.04) 0%, transparent 50%);

  /* ── Typography ── */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  /* Font Sizes — Fluid */
  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.8rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.9rem);
  --text-base: clamp(0.95rem, 0.9rem + 0.25vw, 1.1rem);
  --text-lg: clamp(1.1rem, 1rem + 0.5vw, 1.3rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.6rem);
  --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2.2rem);
  --text-3xl: clamp(1.8rem, 1.4rem + 2vw, 2.8rem);
  --text-4xl: clamp(2.2rem, 1.6rem + 3vw, 3.6rem);
  --text-5xl: clamp(2.8rem, 2rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 2rem + 5vw, 5.5rem);

  /* Font Weights */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* Line Heights */
  --leading-tight: 1.1;
  --leading-snug: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.7;

  /* Letter Spacing */
  --tracking-tighter: -0.04em;
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-wider: 0.1em;
  --tracking-widest: 0.15em;

  /* ── Spacing System ── */
  --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;
  --space-32: 8rem;
  --space-40: 10rem;

  /* Section Spacing */
  --section-padding: clamp(5rem, 8vw, 10rem);
  --container-max: 1320px;
  --container-narrow: 900px;
  --container-wide: 1440px;

  /* ── Border & Radius ── */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  --border-subtle: 1px solid rgba(255, 255, 255, 0.06);
  --border-gold: 1px solid var(--gold-border);
  --border-gold-hover: 1px solid var(--gold-border-hover);

  /* ── Shadows ── */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 0 30px rgba(212, 175, 55, 0.15);
  --shadow-gold-lg: 0 0 60px rgba(212, 175, 55, 0.2);

  /* ── Glass Effect ── */
  --glass-blur: blur(20px);
  --glass-bg: rgba(11, 16, 32, 0.6);
  --glass-border: 1px solid rgba(212, 175, 55, 0.12);

  /* ── Transitions ── */
  --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);

  --duration-fast: 200ms;
  --duration-normal: 350ms;
  --duration-slow: 600ms;
  --duration-slower: 900ms;

  /* ── Z-Index System ── */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-fixed: 30;
  --z-modal: 40;
  --z-cursor: 50;
  --z-particles: -1;
}