/* VDS Engine 5 — Design Tokens (--vds-*) · generato da vds-build */
@font-face {
  font-family: "VDS Inter";
  src: url("./fonts/inter-variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
:root {
  --vds-font-sans: "VDS Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  --vds-font-family: var(--vds-font-sans);
  --vds-font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  /* Governance responsive: sei breakpoint reali. */
  --vds-breakpoint-xs: 0px;
  --vds-breakpoint-sm: 480px;
  --vds-breakpoint-md: 768px;
  --vds-breakpoint-lg: 1024px;
  --vds-breakpoint-xl: 1280px;
  --vds-breakpoint-2xl: 1536px;

  /* Scala tipografica (rem, fluida dove utile) */
  --vds-font-size-xs: 0.75rem;
  --vds-font-size-sm: 0.875rem;
  --vds-font-size-base: 1rem;
  --vds-font-size-lg: 1.125rem;
  --vds-font-size-xl: 1.375rem;
  --vds-font-size-2xl: 1.75rem;
  --vds-font-size-3xl: 2.25rem;
  --vds-font-size-4xl: 3rem;
  --vds-font-size-5xl: clamp(2.75rem, 6vw, 4.5rem);

  /* Spaziature (scala generosa Apple-like) */
  --vds-space-sm: 8px;
  --vds-space-md: 16px;
  --vds-space-lg: 24px;
  --vds-space-xl: 40px;
  --vds-space-2xl: 64px;
  --vds-space-3xl: 96px;
  --vds-space-4xl: 128px;

  /* Radius */
  --vds-radius-sm: 8px;
  --vds-radius-md: 12px;
  --vds-radius-lg: 18px;
  --vds-radius-xl: 24px;

  /* Blur glassmorphism */
  --vds-blur-glass: 20px;

  /* Larghezze */
  --vds-max-width: 1200px;
  --vds-max-width-narrow: 680px;

  /* Motion (solo GPU-safe: transform + opacity) */
  --vds-motion-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --vds-motion-normal: 0.3s;
  --vds-motion-slow: 0.6s;
}

:root,
:root[data-theme="light"] {
  --vds-color-bg: #fbfbfd;
  --vds-color-bg-gradient-start: #fbfbfd;
  --vds-color-bg-gradient-end: #f5f5f7;
  --vds-color-surface: #ffffff;
  --vds-color-surface-glass: rgba(255, 255, 255, 0.72);
  --vds-color-text-primary: #1d1d1f;
  --vds-color-text-secondary: #6e6e73;
  --vds-color-text-muted: #86868b;
  --vds-color-border: rgba(0, 0, 0, 0.08);
  --vds-color-accent: #0071e3;
  --vds-color-accent-hover: #0077ed;
  --vds-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
  --vds-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.04), 0 10px 15px rgba(0, 0, 0, 0.05);
  --vds-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.06), 0 20px 40px rgba(0, 0, 0, 0.08);
}

:root[data-theme="dark"] {
  --vds-color-bg: #000000;
  --vds-color-bg-gradient-start: #000000;
  --vds-color-bg-gradient-end: #1d1d1f;
  --vds-color-surface: #1d1d1f;
  --vds-color-surface-glass: rgba(29, 29, 31, 0.72);
  --vds-color-text-primary: #f5f5f7;
  --vds-color-text-secondary: #a1a1a6;
  --vds-color-text-muted: #86868b;
  --vds-color-border: rgba(255, 255, 255, 0.1);
  --vds-color-accent: #2997ff;
  --vds-color-accent-hover: #47a3ff;
  --vds-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.4);
  --vds-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3), 0 10px 15px rgba(0, 0, 0, 0.4);
  --vds-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4), 0 20px 40px rgba(0, 0, 0, 0.5);
}

/* Auto dark se nessuna preferenza esplicita */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --vds-color-bg: #000000;
    --vds-color-bg-gradient-start: #000000;
    --vds-color-bg-gradient-end: #1d1d1f;
    --vds-color-surface: #1d1d1f;
    --vds-color-surface-glass: rgba(29, 29, 31, 0.72);
    --vds-color-text-primary: #f5f5f7;
    --vds-color-text-secondary: #a1a1a6;
    --vds-color-text-muted: #86868b;
    --vds-color-border: rgba(255, 255, 255, 0.1);
    --vds-color-accent: #2997ff;
    --vds-color-accent-hover: #47a3ff;
    --vds-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.4);
    --vds-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3), 0 10px 15px rgba(0, 0, 0, 0.4);
    --vds-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4), 0 20px 40px rgba(0, 0, 0, 0.5);
  }
}

/* Preset commerciale: editorial-authority */
:root {
  --vds-color-accent: #63a70b;
  --vds-color-accent-hover: #991b1b;
  --vds-color-surface: #fffdf8;
  --vds-color-bg: #fcf7ed;
  --vds-color-bg-gradient-start: #fcf7ed;
  --vds-radius-lg: 8px;
  --vds-radius-xl: 8px;
  --vds-max-width: 1180px;
}