@font-face {
  font-family: "Inter";
  src: local("Inter"), local("Inter Variable"), local("Inter-Regular");
  font-display: swap;
}

:root {
  color-scheme: dark;

  --c-bg: #000000;
  --c-surface-1: #181818;        
  --c-surface-2: #242424;        
  --c-surface-3: #2E2E2E;
  --c-border: #383838;
  --c-border-strong: #5A5A5A;    

  --c-text: #F5F5F5;             
  --c-text-2: #B8B8B8;           
  --c-text-3: #8A8A8A;           
  --c-text-on-accent: #000000;   
  --c-text-on-white: #000000;

  --c-accent: #2BFFA8;
  --c-accent-hover: #6BFFC3;
  --c-accent-press: #1FDB8F;
  --c-accent-ink: #2BFFA8;       
  --c-accent-soft: rgba(43, 255, 168, 0.12);
  --c-accent-line: rgba(43, 255, 168, 0.45);

  --c-glow-violet: #6B3BFF;
  --glow-hero: radial-gradient(closest-side, rgba(107, 59, 255, 0.42), rgba(74, 36, 170, 0.18) 55%, rgba(0, 0, 0, 0) 100%);

  --c-level-low: #2BFFA8;
  --c-level-mid: #CFCFCF;
  --c-level-high: #E0A060;

  --c-white: #FFFFFF;
  --c-white-hover: #E6E6E6;

  --font-sans: "Inter", "Inter Variable", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;

  --fs-h1: clamp(2.125rem, 1.36rem + 3.27vw, 4rem);       
  --fs-h2: clamp(1.75rem, 1.2rem + 2.35vw, 3.25rem);      
  --fs-h3: clamp(1.375rem, 1.16rem + 0.9vw, 1.875rem);    
  --fs-h4: clamp(1.125rem, 1.07rem + 0.22vw, 1.25rem);    
  --fs-lead: clamp(1.0625rem, 1.01rem + 0.22vw, 1.1875rem); 
  --fs-body: clamp(1rem, 0.97rem + 0.11vw, 1.0625rem);    
  --fs-small: 0.875rem;                                    
  --fs-eyebrow: 0.75rem;                                   
  --fs-micro: 0.75rem;                                     

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  --lh-tight: 1.04;     
  --lh-heading: 1.1;    
  --lh-snug: 1.3;
  --lh-body: 1.5;

  --ls-h1: -0.035em;
  --ls-h2: -0.03em;
  --ls-h3: -0.02em;
  --ls-body: -0.005em;
  --ls-eyebrow: 0.12em;

  --measure: 60ch;      

  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;
  --sp-24: 96px;
  --sp-30: 120px;

  --section-y: clamp(48px, 2.4rem + 5.5vw, 120px);  
  --gutter: clamp(20px, 3vw, 32px);                   
  --container: 1240px;
  --grid-gap: clamp(16px, 2vw, 24px);
  --header-h: 72px;

  --r-0: 0;
  --r-card: 4px;
  --r-media: 4px;
  --r-eyebrow: 2px;
  --r-pill: 999px;

  --sh-1: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 1px 2px rgba(0, 0, 0, 0.6);
  --sh-2: 0 12px 32px -12px rgba(0, 0, 0, 0.8);
  --sh-product: 0 40px 80px -24px rgba(0, 0, 0, 0.9), 0 8px 20px -8px rgba(0, 0, 0, 0.7);
  --sh-accent: 0 0 0 1px var(--c-accent-line), 0 0 24px -4px rgba(43, 255, 168, 0.35);

  --dur-fast: 150ms;
  --dur-base: 200ms;
  --dur-slow: 250ms;
  --ease-out: cubic-bezier(0.2, 0.7, 0.2, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.25, 1);

  --focus-color: #2BFFA8;
  --focus-width: 2px;
  --focus-offset: 3px;
  --focus-ring: 0 0 0 var(--focus-offset) var(--c-bg), 0 0 0 calc(var(--focus-offset) + var(--focus-width)) var(--focus-color);

  --btn-h: 52px;
  --btn-h-sm: 40px;
  --tap-min: 44px;
  --icon-sm: 20px;
  --icon-md: 28px;
  --icon-lg: 36px;
  --icon-stroke: 1.5;
}

[data-theme="light"] {
  color-scheme: light;
  --c-bg: #FFFFFF;
  --c-surface-1: #F4F4F4;
  --c-surface-2: #EAEAEA;
  --c-surface-3: #E0E0E0;
  --c-border: #D6D6D6;
  --c-border-strong: #A8A8A8;
  --c-text: #0A0A0A;
  --c-text-2: #4A4A4A;          
  --c-text-3: #6B6B6B;          
  --c-accent-ink: #00845A;      
  --c-accent-line: rgba(0, 132, 90, 0.45);
  --c-accent-soft: rgba(0, 132, 90, 0.1);
  --focus-color: #00845A;
  --glow-hero: radial-gradient(closest-side, rgba(107, 59, 255, 0.18), rgba(107, 59, 255, 0) 100%);
  --sh-product: 0 40px 80px -30px rgba(0, 0, 0, 0.35);
}

:focus { outline: none; }
:focus-visible {
  outline: var(--focus-width) solid var(--focus-color);
  outline-offset: var(--focus-offset);
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --dur-fast: 0ms;
    --dur-base: 0ms;
    --dur-slow: 0ms;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}