:root {
  color-scheme: light;
  --bg-page: #f7f7fb;
  --bg-section: #f1f3fb;
  --bg-glass: rgba(255, 255, 255, 0.62);
  --bg-glass-strong: rgba(255, 255, 255, 0.78);
  --bg-card: rgba(255, 255, 255, 0.92);
  --text-primary: #0b1120;
  --text-secondary: #3b475c;
  --text-muted: #6b7280;
  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.16);
  --shadow-soft: 0 12px 36px rgba(15, 23, 42, 0.08);
  --shadow-strong: 0 20px 60px rgba(15, 23, 42, 0.18);
  --accent-1: #3b82f6;
  --accent-2: #8b5cf6;
  --accent-3: #22d4c0;
  --accent-gradient: linear-gradient(120deg, #3b82f6, #8b5cf6);
  --hero-gradient: radial-gradient(circle at 15% 15%, rgba(59, 130, 246, 0.18), transparent 40%),
    radial-gradient(circle at 85% 25%, rgba(139, 92, 246, 0.15), transparent 45%),
    radial-gradient(circle at 30% 80%, rgba(34, 212, 192, 0.12), transparent 50%);
  --nav-bg: rgba(255, 255, 255, 0.7);
  --nav-border: rgba(148, 163, 184, 0.3);
  --footer-bg: #0b1120;
  --footer-text: #e2e8f0;
  --btn-primary-bg: linear-gradient(120deg, #3b82f6, #7c3aed);
  --btn-primary-text: #f8fafc;
  --btn-outline: rgba(15, 23, 42, 0.12);
  --focus-ring: 0 0 0 0.22rem rgba(59, 130, 246, 0.35);
  --glow: 0 0 40px rgba(59, 130, 246, 0.35);
  --glass-border: rgba(255, 255, 255, 0.5);
  --space-bg: linear-gradient(135deg, #f7f7fb 0%, #edf1ff 45%, #f7f7fb 100%);
  --space-glow: radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.18), transparent 55%);
  --bs-body-bg: var(--bg-page);
  --bs-body-color: var(--text-primary);
  --bs-body-color-rgb: 11, 17, 32;
  --bs-secondary-color: var(--text-secondary);
  --bs-secondary-color-rgb: 59, 71, 92;
  --bs-tertiary-color: var(--text-muted);
  --bs-emphasis-color: var(--text-primary);
  --bs-border-color: var(--border-subtle);
  --bs-link-color: var(--accent-1);
  --bs-link-hover-color: var(--accent-2);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg-page: #0b1120;
  --bg-section: #0f172a;
  --bg-glass: rgba(15, 23, 42, 0.6);
  --bg-glass-strong: rgba(15, 23, 42, 0.78);
  --bg-card: rgba(15, 23, 42, 0.9);
  --text-primary: #e2e8f0;
  --text-secondary: #cbd5f5;
  --text-muted: #94a3b8;
  --border-subtle: rgba(148, 163, 184, 0.22);
  --border-strong: rgba(148, 163, 184, 0.35);
  --shadow-soft: 0 18px 44px rgba(2, 6, 23, 0.55);
  --shadow-strong: 0 22px 70px rgba(2, 6, 23, 0.75);
  --accent-1: #60a5fa;
  --accent-2: #a78bfa;
  --accent-3: #2dd4bf;
  --accent-gradient: linear-gradient(120deg, #60a5fa, #a78bfa);
  --hero-gradient: radial-gradient(circle at 15% 15%, rgba(96, 165, 250, 0.18), transparent 42%),
    radial-gradient(circle at 85% 25%, rgba(167, 139, 250, 0.15), transparent 48%),
    radial-gradient(circle at 30% 80%, rgba(45, 212, 191, 0.12), transparent 55%);
  --nav-bg: rgba(9, 14, 28, 0.75);
  --nav-border: rgba(148, 163, 184, 0.2);
  --footer-bg: #070b16;
  --footer-text: #e2e8f0;
  --btn-primary-bg: linear-gradient(120deg, #3b82f6, #8b5cf6);
  --btn-primary-text: #f8fafc;
  --btn-outline: rgba(226, 232, 240, 0.2);
  --focus-ring: 0 0 0 0.22rem rgba(96, 165, 250, 0.35);
  --glow: 0 0 45px rgba(96, 165, 250, 0.4);
  --glass-border: rgba(148, 163, 184, 0.22);
  --space-bg: linear-gradient(135deg, #0b1120 0%, #0f1a33 50%, #0b1120 100%);
  --space-glow: radial-gradient(circle at 20% 20%, rgba(96, 165, 250, 0.28), transparent 55%);
  --bs-body-bg: var(--bg-page);
  --bs-body-color: var(--text-primary);
  --bs-body-color-rgb: 226, 232, 240;
  --bs-secondary-color: var(--text-secondary);
  --bs-secondary-color-rgb: 203, 213, 245;
  --bs-tertiary-color: var(--text-muted);
  --bs-emphasis-color: var(--text-primary);
  --bs-border-color: var(--border-subtle);
  --bs-link-color: var(--accent-1);
  --bs-link-hover-color: var(--accent-2);
}