/* ==========================================================================
   Design Tokens - Design Skills 2030
   ========================================================================== */

:root {
  /* -------------------------------------------------------------------------
     Colors - Dark Theme
     ------------------------------------------------------------------------- */

  /* Backgrounds - layered depth */
  --bg-primary: #0a0a0b;
  --bg-secondary: #111113;
  --bg-tertiary: #18181b;
  --bg-hover: #1f1f23;

  /* Text hierarchy */
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-tertiary: #71717a;
  --text-muted: #52525b;

  /* Accent - Monochrome (no color) */
  --accent-primary: #fafafa;
  --accent-hover: #ffffff;
  --accent-subtle: #27272a;
  --accent-glow: rgba(255, 255, 255, 0.08);

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-visible: rgba(255, 255, 255, 0.15);

  /* Gradients - removed color, pure dark */
  --gradient-hero: var(--bg-primary);
  --gradient-card: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  --gradient-accent: linear-gradient(135deg, #fafafa 0%, #a1a1aa 100%);

  /* -------------------------------------------------------------------------
     Typography
     ------------------------------------------------------------------------- */

  --font-primary: 'Panama Proportional', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Fluid type scale - Modular (ratio 1.25, base 18px)
     18 → 22.5 → 28 → 35 → 44 → 55 → 69 */
  --fs-display: clamp(2.75rem, 6vw, 4.3rem);   /* 44px → 69px */
  --fs-h1: clamp(2.2rem, 4vw, 3.45rem);        /* 35px → 55px */
  --fs-h2: clamp(1.75rem, 3vw, 2.75rem);       /* 28px → 44px */
  --fs-h3: clamp(1.4rem, 2vw, 2.2rem);         /* 22.5px → 35px */
  --fs-body: clamp(1.125rem, 1.5vw, 1.75rem);  /* 18px → 28px */
  --fs-small: clamp(1rem, 1.2vw, 1.4rem);      /* 16px → 22.5px */
  --fs-caption: clamp(0.875rem, 1vw, 1.125rem); /* 14px → 18px */

  /* Line heights */
  --lh-tight: 1.1;
  --lh-snug: 1.3;
  --lh-normal: 1.6;
  --lh-relaxed: 1.8;

  /* Letter spacing */
  --ls-tight: -0.02em;
  --ls-normal: 0;
  --ls-wide: 0.05em;
  --ls-wider: 0.1em;

  /* -------------------------------------------------------------------------
     Spacing Scale (8px base)
     ------------------------------------------------------------------------- */

  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

  /* -------------------------------------------------------------------------
     Borders & Radius
     ------------------------------------------------------------------------- */

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* -------------------------------------------------------------------------
     Transitions & Easing
     ------------------------------------------------------------------------- */

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 800ms;

  /* -------------------------------------------------------------------------
     Shadows
     ------------------------------------------------------------------------- */

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 30px var(--accent-glow);

  /* -------------------------------------------------------------------------
     Layout
     ------------------------------------------------------------------------- */

  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 72px;
}