/* ==========================================================================
   DESIGN TOKENS & LUXURY SYSTEM VARIABLES (ULTRA-PREMIUM QUIET LUXURY DARK THEME)
   ========================================================================== */

:root {
  /* Surface & Canvas Palette (Deep Midnight & Obsidian) */
  --bg-main: #060913;
  --bg-surface: rgba(11, 17, 32, 0.85);
  --bg-surface-solid: #0A0F1D;
  --bg-surface-alt: #0E1528;
  --bg-surface-elevated: #131D36;
  --bg-subtle: #172340;
  --bg-glass: rgba(10, 15, 28, 0.72);
  --bg-glass-card: rgba(14, 21, 38, 0.78);

  /* Executive Brand & Precision Accents (Soft Ice Blue & Electric Slate) */
  --primary: #FFFFFF;
  --primary-hover: #F8FAFC;
  --accent: #38BDF8;
  --accent-light: rgba(56, 189, 248, 0.12);
  --accent-hover: #7DD3FC;
  --accent-glow: rgba(56, 189, 248, 0.28);
  --accent-cyan: #38BDF8;
  --accent-indigo: #6366F1;
  
  /* Status & Indicators */
  --success: #10B981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --success-border: rgba(16, 185, 129, 0.28);
  --danger: #F43F5E;
  --danger-bg: rgba(244, 63, 94, 0.1);
  --warning: #F59E0B;
  --warning-bg: rgba(245, 158, 11, 0.1);

  /* Luxury Typography Hierarchy */
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-tertiary: #94A3B8;
  --text-muted: #64748B;
  --text-light: #64748B;
  --text-inverse: #070B14;

  /* Precision Top-Edge & Perimeter Micro-Borders */
  --border-light: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(56, 189, 248, 0.35);
  --border-focus: #38BDF8;
  --border-subtle: rgba(255, 255, 255, 0.04);
  --top-edge-highlight: inset 0 1px 0 0 rgba(255, 255, 255, 0.14);

  /* Multi-layered Obsidian Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 4px 8px -2px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 12px 28px -4px rgba(0, 0, 0, 0.65), 0 4px 8px -2px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.75), 0 12px 24px -8px rgba(0, 0, 0, 0.45);
  --shadow-xl: 0 36px 72px -16px rgba(0, 0, 0, 0.85), 0 18px 36px -8px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 16px 40px -4px rgba(56, 189, 248, 0.22), 0 0 20px rgba(56, 189, 248, 0.06);
  --shadow-card-inner: inset 0 1px 0 0 rgba(255, 255, 255, 0.12);

  /* Typography */
  --font-heading: 'Unbounded', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout */
  --container-max: 1240px;
  --container-narrow: 960px;
  --section-padding-y: 96px;
  --section-padding-y-mobile: 60px;

  /* Border Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 260ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 420ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 320ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Glass Blur Tokens */
  --glass-blur: blur(20px);
  --glass-bg: rgba(11, 17, 32, 0.82);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);

  /* Luxury Titanium & Ice Gradients */
  --gradient-titanium: linear-gradient(180deg, #FFFFFF 15%, #94A3B8 100%);
  --gradient-ice: linear-gradient(180deg, #FFFFFF 0%, #38BDF8 100%);
  --gradient-primary-btn: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
  --gradient-card-dark: linear-gradient(180deg, rgba(17, 24, 39, 0.85) 0%, rgba(10, 15, 28, 0.95) 100%);
}

/* Gradient Utility Classes */
.text-gradient-titanium {
  background: linear-gradient(180deg, #FFFFFF 20%, #94A3B8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.text-gradient-ice {
  background: linear-gradient(180deg, #FFFFFF 0%, #38BDF8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.neon-cyan {
  color: #38BDF8 !important;
  text-shadow: 0 0 16px rgba(56, 189, 248, 0.35);
}