/**
 * VotePulse Design System (VPDS) v1.0
 * Single source of truth for spacing, typography, radius, shadows, surfaces.
 * Party colours (--vp-primary etc.) are injected by the Branding Engine.
 */

:root {
  /* Spacing scale — never invent values outside this set */
  --vp-space-1: 4px;
  --vp-space-2: 8px;
  --vp-space-3: 12px;
  --vp-space-4: 16px;
  --vp-space-5: 20px;
  --vp-space-6: 24px;
  --vp-space-8: 32px;
  --vp-space-10: 40px;
  --vp-space-12: 48px;
  --vp-space-16: 64px;
  --vp-space-20: 80px;
  --vp-space-24: 96px;

  /* Typography — Inter */
  --vp-font: 'Inter', system-ui, -apple-system, sans-serif;
  --vp-font-display: 'Inter', system-ui, sans-serif;

  --vp-text-hero: 56px;
  --vp-text-page: 40px;
  --vp-text-section: 30px;
  --vp-text-card: 22px;
  --vp-text-body: 18px;
  --vp-text-caption: 16px;
  --vp-text-small: 14px;

  --vp-leading-tight: 1.15;
  --vp-leading-normal: 1.5;
  --vp-leading-relaxed: 1.65;

  /* Radius */
  --vp-radius-card: 24px;
  --vp-radius-button: 16px;
  --vp-radius-input: 16px;
  --vp-radius-dialog: 28px;
  --vp-radius-image: 24px;

  /* Shadows — soft, large blur */
  --vp-shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.12);
  --vp-shadow-md: 0 8px 32px rgba(0, 0, 0, 0.18);
  --vp-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.22);
  --vp-shadow-float: 0 12px 40px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.04);

  /* Surface levels */
  --vp-surface-0: #0b1120;
  --vp-surface-1: rgba(26, 37, 64, 0.55);
  --vp-surface-2: rgba(26, 37, 64, 0.72);
  --vp-surface-3: rgba(15, 23, 42, 0.92);
  --vp-surface-4: rgba(10, 15, 24, 0.95);

  /* Glass */
  --vp-glass-bg: linear-gradient(
    135deg,
    color-mix(in srgb, var(--vp-primary, #0c7a43) 10%, rgba(11, 17, 32, 0.88)) 0%,
    rgba(11, 17, 32, 0.85) 100%
  );
  --vp-glass-border: 1px solid color-mix(in srgb, var(--vp-primary, #0c7a43) 28%, transparent);
  --vp-glass-blur: blur(20px) saturate(1.15);

  /* Layout */
  --vp-content-max: 1200px;
  --vp-nav-height: 72px;

  /* Motion */
  --vp-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --vp-duration-fast: 150ms;
  --vp-duration: 280ms;
  --vp-duration-slow: 480ms;
}

/* Mobile typography scale (GroundForce) */
@media (max-width: 640px) {
  :root {
    --vp-text-hero: 36px;
    --vp-text-page: 28px;
    --vp-text-section: 22px;
    --vp-text-card: 18px;
    --vp-text-body: 16px;
    --vp-text-caption: 14px;
    --vp-text-small: 12px;
  }
}