/* ==========================================================================
   VishalLab.dev — Design Tokens
   Blueprint / precision-drafting visual language.
   Change values here to re-theme the entire site.
   ========================================================================== */

:root {
  /* ---- Color: surfaces ---- */
  --ink: #10202F;              /* deep blueprint navy — dark surfaces, primary text on paper */
  --ink-2: #16303F;            /* secondary dark surface (cards on dark bg) */
  --ink-3: #1C3A4C;            /* tertiary dark surface (hover states on dark) */
  --paper: #F5F3EC;            /* drafting paper — light background */
  --paper-2: #EDE9DD;          /* slightly deeper paper — card surface */
  --paper-3: #E4DFCF;          /* deepest paper tone — inset panels */

  /* ---- Color: text ---- */
  --text-on-paper: #1A2732;
  --text-on-paper-mute: #5B6B74;
  --text-on-ink: #F5F3EC;
  --text-on-ink-mute: #A9B7BE;

  /* ---- Color: lines ---- */
  --line-on-paper: #DAD5C8;
  --line-on-ink: rgba(245, 243, 236, 0.16);

  /* ---- Color: accents ---- */
  --amber: #C8842B;            /* brass — primary CTA / highlight */
  --amber-hover: #B4762A;
  --amber-ink: #3A2408;        /* text placed on amber */
  --cyan: #2E8C93;             /* anodized teal — secondary actions, links */
  --cyan-hover: #256F75;
  --success: #4C7A52;
  --success-bg: #E6EEE3;
  --danger: #B4462F;
  --danger-bg: #F5E7E1;
  --white: #FFFFFF;

  /* ---- Typography ---- */
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;

  --fs-xs: 0.75rem;     /* 12px */
  --fs-sm: 0.875rem;    /* 14px */
  --fs-base: 1rem;      /* 16px */
  --fs-md: 1.125rem;    /* 18px */
  --fs-lg: 1.375rem;    /* 22px */
  --fs-xl: 1.75rem;     /* 28px */
  --fs-2xl: 2.25rem;    /* 36px */
  --fs-3xl: 3rem;       /* 48px */
  --fs-4xl: 4rem;       /* 64px */

  --lh-tight: 1.1;
  --lh-snug: 1.3;
  --lh-normal: 1.55;

  /* ---- Spacing scale ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* ---- Radius ---- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-pill: 999px;

  /* ---- Shadow ---- */
  --shadow-sm: 0 1px 2px rgba(16, 32, 47, 0.08);
  --shadow-md: 0 8px 24px rgba(16, 32, 47, 0.12);
  --shadow-lg: 0 24px 56px rgba(16, 32, 47, 0.20);

  /* ---- Layout ---- */
  --container-max: 1240px;
  --container-pad: 24px;
  --nav-height: 76px;

  /* ---- Motion ---- */
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  --dur-fast: 150ms;
  --dur-med: 300ms;
  --dur-slow: 650ms;

  /* ---- Z-index scale ---- */
  --z-nav: 100;
  --z-overlay: 200;
  --z-modal: 300;
  --z-toast: 400;
}

@media (max-width: 720px) {
  :root {
    --fs-3xl: 2.25rem;
    --fs-4xl: 2.75rem;
    --fs-2xl: 1.75rem;
    --nav-height: 64px;
    --container-pad: 18px;
  }
}