/* =========================================================
   DESIGN TOKENS
   Change colors, fonts, spacing and motion timing here.
   Everything else reads from these variables.
   ========================================================= */

:root {
  /* ---- Accent (the main thing to tweak) ----
     --accent       solid fills: primary buttons, active chips, dots
     --accent-bright text/lines on dark backgrounds (needs good contrast)
     --accent-rgb    same as --accent-bright as "r, g, b" for transparent glows */
  --accent: #2446ff;
  --accent-hover: #3a5bff;
  --accent-bright: #00d4ff;
  --accent-rgb: 0, 212, 255;
  --on-accent: #ffffff;

  /* ---- Dark theme (default) ---- */
  --bg: #0b1120;
  --bg-alt: #0f172a;
  --surface: #131c33;
  --surface-2: #19233f;
  --border: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.28);
  --text: #e0e0e0;
  --text-muted: #94a3b8;
  --heading: #ffffff;
  --header-bg: rgba(11, 17, 32, 0.72);
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
  --dither-color: 11, 17, 32; /* matches --bg; used by the dither veil canvas */

  /* ---- Typography ---- */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --fs-hero: clamp(2.5rem, 6vw + 0.5rem, 5rem);
  --fs-h2: clamp(1.9rem, 3vw + 0.6rem, 3rem);
  --fs-h3: 1.2rem;
  --fs-body: 1.0625rem;
  --fs-small: 0.875rem;
  --lh-body: 1.7;

  /* ---- Layout ---- */
  --container: 1160px;
  --gutter: clamp(16px, 4vw, 32px);
  --section-pad: clamp(80px, 12vw, 140px);
  --radius: 14px;
  --radius-sm: 8px;
  --header-h: 68px;

  /* ---- Motion ---- */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 180ms;
  --dur: 350ms;
  --dur-slow: 700ms;
}

/* ---- Light theme (toggle in the header) ---- */
:root[data-theme="light"] {
  --accent: #1d3dff;
  --accent-hover: #0f2ee0;
  --accent-bright: #0060d6;
  --accent-rgb: 0, 96, 214;

  --bg: #f7f8fb;
  --bg-alt: #eef1f7;
  --surface: #ffffff;
  --surface-2: #f2f4f9;
  --border: rgba(15, 23, 42, 0.1);
  --border-strong: rgba(15, 23, 42, 0.2);
  --text: #334155;
  --text-muted: #5b6b82;
  --heading: #0b1120;
  --header-bg: rgba(247, 248, 251, 0.8);
  --shadow: 0 20px 50px -24px rgba(15, 23, 42, 0.25);
  --dither-color: 247, 248, 251;
}