/* ============================================
   DESIGN TOKENS — Conversion Sprint
   ============================================ */

:root {
  /* ---- Colors ---- */
  --color-bg:           #0A0A0A;
  --color-surface-1:    #141414;
  --color-surface-2:    #1A1A1A;
  --color-surface-3:    #222222;
  --color-border:       #2A2A2A;
  --color-border-light: #333333;

  --color-text:         #F5F5F5;
  --color-text-muted:   #A0A0A0;
  --color-text-subtle:  #6B6B6B;

  --color-accent:       #E8FF00;
  --color-accent-dim:   #C5D900;
  --color-accent-glow:  rgba(232, 255, 0, 0.15);
  --color-accent-glow-strong: rgba(232, 255, 0, 0.25);

  --color-success:      #00D26A;
  --color-error:        #FF4D4D;
  --color-warning:      #FFB800;

  /* ---- Typography ---- */
  --font-display: 'Syne', system-ui, sans-serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Fluid type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.8125rem);
  --text-sm:   clamp(0.8125rem, 0.775rem + 0.25vw, 0.875rem);
  --text-base: clamp(0.875rem, 0.825rem + 0.3vw, 1rem);
  --text-md:   clamp(1rem,     0.925rem + 0.4vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.5vw, 1.25rem);
  --text-xl:   clamp(1.25rem,  1.1rem  + 0.6vw, 1.5rem);
  --text-2xl:  clamp(1.5rem,   1.25rem + 0.8vw, 2rem);
  --text-3xl:  clamp(2rem,     1.5rem  + 1.5vw, 2.75rem);
  --text-4xl:  clamp(2.5rem,   1.75rem + 2.5vw, 3.5rem);
  --text-5xl:  clamp(3rem,     2rem    + 3vw,   5rem);

  /* Line heights */
  --leading-tight:  1.1;
  --leading-snug:   1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;

  /* Font weights */
  --weight-regular:  400;
  --weight-medium:   500;
  --weight-semibold: 600;
  --weight-bold:     700;
  --weight-black:    800;

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

  /* ---- Spacing (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 */

  /* ---- Layout ---- */
  --container-sm:  640px;
  --container-md:  768px;
  --container-lg:  1024px;
  --container-xl:  1200px;
  --container-2xl: 1400px;
  --section-padding: clamp(4rem, 8vw, 8rem);

  /* ---- Border radius ---- */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-pill: 100px;

  /* ---- Shadows ---- */
  --shadow-sm:    0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md:    0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg:    0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow:  0 0 30px var(--color-accent-glow),
                  0 0 60px var(--color-accent-glow);
  --shadow-glow-strong: 0 0 40px var(--color-accent-glow-strong),
                        0 0 80px var(--color-accent-glow);

  /* ---- Transitions ---- */
  --ease-out:     cubic-bezier(0.16, 1, 0.3, 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;

  /* ---- Z-index ---- */
  --z-base:     1;
  --z-dropdown: 10;
  --z-sticky:   20;
  --z-overlay:  30;
  --z-modal:    40;
  --z-toast:    50;
}