/* ==========================================================
   SolarPro Design System - CSS Custom Properties
   Dark mode by default, Light mode via [data-theme="light"]
   Linear/Stripe-inspired - No purple anywhere
   ========================================================== */

:root {
  /* ── Backgrounds ── */
  --bg-primary: #0A0A0F;
  --bg-secondary: #12121A;
  --bg-tertiary: #1A1A25;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --bg-glass: rgba(255, 255, 255, 0.05);

  /* ── Borders ── */
  --border-default: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);

  /* ── Text ── */
  --text-primary: #F1F1F3;
  --text-secondary: #8B8B9E;
  --text-tertiary: #5C5C72;
  --text-placeholder: #3D3D52;

  /* ── Accent: Blue ── */
  --accent-blue: #3B82F6;
  --accent-blue-hover: #2563EB;
  --accent-blue-glow: rgba(59, 130, 246, 0.15);

  /* ── Accent: Green ── */
  --accent-green: #10B981;
  --accent-green-hover: #059669;
  --accent-green-glow: rgba(16, 185, 129, 0.15);

  /* ── Accent: Amber ── */
  --accent-amber: #F59E0B;
  --accent-amber-glow: rgba(245, 158, 11, 0.15);

  /* ── Accent: Red ── */
  --accent-red: #EF4444;
  --accent-red-glow: rgba(239, 68, 68, 0.15);

  /* ── Solar Brand ── */
  --solar-orange: #F97316;
  --solar-yellow: #EAB308;
  --solar-gradient: linear-gradient(135deg, #F97316, #EAB308);

  /* ── Glass ── */
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(20px);

  /* ── Shadows ── */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow-blue: 0 0 20px rgba(59, 130, 246, 0.2);
  --shadow-glow-green: 0 0 20px rgba(16, 185, 129, 0.2);

  /* ── Radius ── */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ── Transitions ── */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

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

/* ==========================================================
   Light Mode Override
   ========================================================== */
[data-theme="light"] {
  --bg-primary: #FAFAFA;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F3F4F6;
  --bg-card: rgba(0, 0, 0, 0.02);
  --bg-card-hover: rgba(0, 0, 0, 0.04);
  --border-default: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);
  --text-primary: #111827;
  --text-secondary: #6B7280;
  --text-tertiary: #9CA3AF;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.06);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
}