/* ==========================================================================
   ZeroComm Design System — Token Stylesheet
   ==========================================================================
   Loaded once via <link> in index.html <head>. CSS custom properties defined
   here inherit through shadow DOM boundaries to all page components.

   Source: ZeroComm Design System (colors_and_type.css)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Font Faces — Space Grotesk (self-hosted WOFF2)
   -------------------------------------------------------------------------- */
@font-face {
  font-family: 'Space Grotesk';
  src: url('/fonts/SpaceGrotesk-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('/fonts/SpaceGrotesk-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('/fonts/SpaceGrotesk-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('/fonts/SpaceGrotesk-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('/fonts/SpaceGrotesk-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   2. Font Family Tokens
   -------------------------------------------------------------------------- */
:root {
  --zerocomm-font-family-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --zerocomm-font-family-body: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --zerocomm-font-family-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
}

/* --------------------------------------------------------------------------
   3. Type Scale
   -------------------------------------------------------------------------- */
:root {
  --zerocomm-font-size-hero: clamp(2.25rem, 5vw, 3.75rem);
  --zerocomm-font-size-h1: 2.25rem;
  --zerocomm-font-size-h2: 1.5rem;
  --zerocomm-font-size-h3: 1.25rem;
  --zerocomm-font-size-body: 1rem;
  --zerocomm-font-size-body-sm: 0.875rem;
  --zerocomm-font-size-caption: 0.75rem;
  --zerocomm-font-size-code: 0.875rem;
}

:root {
  --zerocomm-font-weight-light: 300;
  --zerocomm-font-weight-normal: 400;
  --zerocomm-font-weight-medium: 500;
  --zerocomm-font-weight-semibold: 600;
  --zerocomm-font-weight-bold: 700;
  --zerocomm-font-weight-display: 300;
  --zerocomm-font-weight-body: 700;
}

:root {
  --zerocomm-line-height-tight: 1.15;
  --zerocomm-line-height-heading: 1.2;
  --zerocomm-line-height-subheading: 1.3;
  --zerocomm-line-height-body: 1.5;
  --zerocomm-line-height-caption: 1.4;
}

:root {
  --zerocomm-letter-spacing-display: -0.02em;
  --zerocomm-letter-spacing-heading: -0.01em;
  --zerocomm-letter-spacing-body: 0;
  --zerocomm-letter-spacing-caption: 0.02em;
  --zerocomm-letter-spacing-code: 0;
}

/* --------------------------------------------------------------------------
   4. Brand Colors
   -------------------------------------------------------------------------- */
:root {
  --zerocomm-brand-navy-950: #00182E;
  --zerocomm-brand-pink: #FF5E99;
  --zerocomm-brand-purple: #8300C1;
}

/* --------------------------------------------------------------------------
   5. Semantic Color Tokens — Light Theme (default)
   -------------------------------------------------------------------------- */
:root,
[data-theme="light"] {
  --zerocomm-color-bg: oklch(97% 0.005 260);
  --zerocomm-color-surface: #FFFFFF;
  --zerocomm-color-surface-overlay: #FFFFFF;
  --zerocomm-color-surface-hover: oklch(95% 0.005 260);

  --zerocomm-color-fg: #00182E;
  --zerocomm-color-fg-muted: oklch(45% 0.03 260);
  --zerocomm-color-fg-subtle: oklch(60% 0.02 260);
  --zerocomm-color-fg-on-primary: #FFFFFF;

  --zerocomm-color-border: oklch(85% 0.015 260);
  --zerocomm-color-border-hover: oklch(70% 0.02 260);
  --zerocomm-color-border-focus: #FF5E99;

  --zerocomm-color-primary: #FF5E99;
  --zerocomm-color-primary-hover: oklch(60% 0.22 2);
  --zerocomm-color-primary-active: oklch(55% 0.22 2);
  --zerocomm-color-primary-muted: oklch(92% 0.04 2);

  --zerocomm-color-danger: oklch(52% 0.22 20);
  --zerocomm-color-danger-hover: oklch(45% 0.22 20);
  --zerocomm-color-danger-muted: oklch(95% 0.02 20);
  --zerocomm-color-success: oklch(52% 0.16 150);
  --zerocomm-color-success-hover: oklch(46% 0.16 150);
  --zerocomm-color-success-muted: oklch(95% 0.03 145);
  --zerocomm-color-warning: oklch(72% 0.16 80);
  --zerocomm-color-warning-hover: oklch(65% 0.16 80);
  --zerocomm-color-warning-muted: oklch(95% 0.03 80);
  --zerocomm-color-info: oklch(55% 0.14 255);
  --zerocomm-color-info-hover: oklch(48% 0.14 255);
  --zerocomm-color-info-muted: oklch(95% 0.02 255);

  --zerocomm-color-accent: #8300C1;
  --zerocomm-color-accent-muted: oklch(92% 0.04 310);

  --zerocomm-color-overlay: rgba(0, 24, 46, 0.45);

  --zerocomm-shadow-sm: 0 1px 2px rgba(0, 24, 46, 0.05);
  --zerocomm-shadow-md: 0 4px 6px -1px rgba(0, 24, 46, 0.08), 0 2px 4px -2px rgba(0, 24, 46, 0.05);
  --zerocomm-shadow-lg: 0 10px 15px -3px rgba(0, 24, 46, 0.1), 0 4px 6px -4px rgba(0, 24, 46, 0.05);
  --zerocomm-shadow-xl: 0 20px 25px -5px rgba(0, 24, 46, 0.12), 0 8px 10px -6px rgba(0, 24, 46, 0.05);
}

/* --------------------------------------------------------------------------
   6. Semantic Color Tokens — Dark Theme
   -------------------------------------------------------------------------- */
[data-theme="dark"] {
  --zerocomm-color-bg: #00182E;
  --zerocomm-color-surface: oklch(25% 0.06 260);
  --zerocomm-color-surface-overlay: oklch(25% 0.06 260);
  --zerocomm-color-surface-hover: oklch(30% 0.06 260);

  --zerocomm-color-fg: oklch(97% 0.005 260);
  --zerocomm-color-fg-muted: oklch(65% 0.02 260);
  --zerocomm-color-fg-subtle: oklch(48% 0.03 260);
  --zerocomm-color-fg-on-primary: #00182E;

  --zerocomm-color-border: oklch(35% 0.04 260);
  --zerocomm-color-border-hover: oklch(45% 0.04 260);
  --zerocomm-color-border-focus: #FF5E99;

  --zerocomm-color-primary: #FF5E99;
  --zerocomm-color-primary-hover: oklch(68% 0.22 2);
  --zerocomm-color-primary-active: oklch(62% 0.22 2);
  --zerocomm-color-primary-muted: oklch(25% 0.06 2);

  --zerocomm-color-danger: oklch(62% 0.22 20);
  --zerocomm-color-danger-hover: oklch(55% 0.22 20);
  --zerocomm-color-danger-muted: oklch(20% 0.04 20);
  --zerocomm-color-success: oklch(62% 0.16 150);
  --zerocomm-color-success-hover: oklch(55% 0.16 150);
  --zerocomm-color-success-muted: oklch(20% 0.04 145);
  --zerocomm-color-warning: oklch(78% 0.16 80);
  --zerocomm-color-warning-hover: oklch(70% 0.16 80);
  --zerocomm-color-warning-muted: oklch(20% 0.04 80);
  --zerocomm-color-info: oklch(62% 0.14 255);
  --zerocomm-color-info-hover: oklch(55% 0.14 255);
  --zerocomm-color-info-muted: oklch(20% 0.04 245);

  --zerocomm-color-accent: oklch(55% 0.18 310);
  --zerocomm-color-accent-muted: oklch(22% 0.06 310);

  --zerocomm-color-overlay: rgba(0, 0, 0, 0.6);

  --zerocomm-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --zerocomm-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --zerocomm-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  --zerocomm-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
}

/* --------------------------------------------------------------------------
   7. Spacing Scale (4px base)
   -------------------------------------------------------------------------- */
:root {
  --zerocomm-space-0: 0;
  --zerocomm-space-1: 0.25rem;
  --zerocomm-space-2: 0.5rem;
  --zerocomm-space-3: 0.75rem;
  --zerocomm-space-4: 1rem;
  --zerocomm-space-5: 1.25rem;
  --zerocomm-space-6: 1.5rem;
  --zerocomm-space-8: 2rem;
  --zerocomm-space-10: 2.5rem;
  --zerocomm-space-12: 3rem;
  --zerocomm-space-16: 4rem;

  /* Semantic spacing aliases */
  --zerocomm-spacing-xs: var(--zerocomm-space-2);   /* 0.5rem */
  --zerocomm-spacing-sm: var(--zerocomm-space-3);   /* 0.75rem */
  --zerocomm-spacing-md: var(--zerocomm-space-4);   /* 1rem */
  --zerocomm-spacing-lg: var(--zerocomm-space-6);   /* 1.5rem */
  --zerocomm-spacing-xl: var(--zerocomm-space-8);   /* 2rem */
}

/* --------------------------------------------------------------------------
   8. Border Radius
   -------------------------------------------------------------------------- */
:root {
  --zerocomm-radius-none: 0;
  --zerocomm-radius-sm: 0.25rem;
  --zerocomm-radius-md: 0.5rem;
  --zerocomm-radius-lg: 0.75rem;
  --zerocomm-radius-xl: 1rem;
  --zerocomm-radius-full: 9999px;
}

/* --------------------------------------------------------------------------
   9. Focus Ring
   -------------------------------------------------------------------------- */
:root {
  --zerocomm-focus-ring: 2px solid #FF5E99;
  --zerocomm-focus-ring-offset: 2px;
  --zerocomm-color-accent-pink: #FF5E99;
  --zerocomm-font-family-base: var(--zerocomm-font-family-body);
}

/* --------------------------------------------------------------------------
   10. Motion Tokens
   -------------------------------------------------------------------------- */
:root {
  --zerocomm-duration-instant: 0ms;
  --zerocomm-duration-fast: 150ms;
  --zerocomm-duration-normal: 250ms;
  --zerocomm-duration-slow: 400ms;
  --zerocomm-duration-spin: 0.6s;

  --zerocomm-ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --zerocomm-ease-in: cubic-bezier(0.4, 0, 1, 1);
  --zerocomm-ease-out: cubic-bezier(0, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   11. Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  :root {
    --zerocomm-duration-instant: 0ms;
    --zerocomm-duration-fast: 0ms;
    --zerocomm-duration-normal: 0ms;
    --zerocomm-duration-slow: 0ms;
    --zerocomm-duration-spin: 0ms;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}
