:root {
  /* Colors */
  --color-bg: #0a0d17;
  --color-bg-secondary: #111827;
  --color-bg-card: #151c2e;
  --color-bg-card-hover: #1a2238;
  --color-bg-input: #0d1220;

  --color-primary: #ff6600;
  --color-primary-hover: #e55a00;
  --color-primary-light: rgba(255, 102, 0, 0.15);

  --color-accent: #0066ff;
  --color-accent-hover: #0052cc;
  --color-accent-light: rgba(0, 102, 255, 0.15);

  --color-success: #4caf50;
  --color-success-bg: rgba(76, 175, 80, 0.12);

  --color-text: #ffffff;
  --color-text-secondary: #a0a0a0;
  --color-text-muted: #6b7280;

  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-accent: rgba(0, 102, 255, 0.3);

  --color-badge: #ef4444;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  /* Spacing */
  --container-max: 1280px;
  --container-padding: 1rem;
  --section-gap: 2rem;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow-orange: 0 0 30px rgba(255, 102, 0, 0.2);
  --shadow-glow-blue: 0 0 20px rgba(0, 102, 255, 0.15);

  /* Transitions */
  --transition: 0.2s ease;

  /* Layout */
  --header-height: 64px;
  --bottom-nav-height: 64px;
}

@media (min-width: 768px) {
  :root {
    --container-padding: 1.5rem;
    --section-gap: 3rem;
    --header-height: 72px;
  }
}

@media (min-width: 1024px) {
  :root {
    --container-padding: 2rem;
  }
}