:root {
    color-scheme: dark;
    --color-bg:#050A16; --color-card:#081321; --color-card-hover:#0D1B2E;
    --color-primary:#1E90FF; --color-primary-hover:#37A6FF;
    --color-primary-soft:rgba(30,144,255,.15);
    --color-text:#FFF; --color-text-muted:#BFC6D2; --color-text-dim:#8B95A5;
    --color-border:rgba(30,144,255,.2); --color-border-hover:rgba(30,144,255,.5);
    --color-glow:rgba(30,144,255,.4); --color-glow-strong:rgba(30,144,255,.6);
    --color-selection:rgba(30,144,255,.3);
    --container-max:1280px; --container-padding:clamp(1rem,3vw,2rem);
    --radius-sm:4px; --radius-md:8px; --radius-lg:16px; --radius-xl:24px; --radius-full:9999px;
    --space-xs:.25rem; --space-sm:.5rem; --space-md:1rem; --space-lg:1.5rem;
    --space-xl:2rem; --space-2xl:3rem; --space-3xl:4rem; --space-4xl:6rem;
    --transition-fast:150ms ease; --transition-normal:300ms ease; --transition-slow:500ms ease;
    --z-background:-1; --z-base:1; --z-elevated:10; --z-header:100;
    --font-family-base:'Inter',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
    --font-size-xs:clamp(.75rem,.7rem + .25vw,.875rem);
    --font-size-sm:clamp(.875rem,.8rem + .35vw,1rem);
    --font-size-base:clamp(1rem,.95rem + .25vw,1.125rem);
    --font-size-lg:clamp(1.125rem,1rem + .5vw,1.25rem);
    --font-size-xl:clamp(1.25rem,1.1rem + .75vw,1.5rem);
    --font-size-2xl:clamp(1.5rem,1.2rem + 1.5vw,2rem);
    --font-size-5xl:clamp(3rem,2rem + 5vw,5rem);
    --line-height-snug:1.25; --line-height-base:1.6; --line-height-relaxed:1.8;
    --font-weight-normal:400; --font-weight-medium:500; --font-weight-semibold:600;
    --font-weight-bold:700; --font-weight-black:900;
    --glass-bg:rgba(8,19,33,.6); --glass-bg-strong:rgba(8,19,33,.8);
    --glass-blur:20px; --glass-border:1px solid var(--color-border);
    --shadow-md:0 8px 24px rgba(0,0,0,.4);
    --shadow-glow:0 0 20px var(--color-glow),0 0 40px rgba(30,144,255,.15);
}