:root{--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Inter","Helvetica Neue",Arial,sans-serif;--font-mono:"SF Mono","Roboto Mono",Monaco,"Courier New",monospace;--sp-0:0;--sp-1:0.25rem;--sp-2:0.5rem;--sp-3:0.75rem;--sp-4:1rem;--sp-5:1.5rem;--sp-6:2rem;--sp-7:3rem;--sp-8:4rem;--sp-9:5rem;--sp-10:6rem;--txt-xs:0.75rem;--txt-sm:0.875rem;--txt-base:1rem;--txt-lg:1.125rem;--txt-xl:1.25rem;--txt-2xl:1.5rem;--txt-3xl:2rem;--txt-4xl:2.5rem;--fw-normal:400;--fw-medium:500;--fw-semibold:600;--fw-bold:700;--lh-tight:1.25;--lh-snug:1.375;--lh-normal:1.5;--lh-relaxed:1.75;--ls-tight:-0.025em;--ls-normal:0;--ls-wide:0.025em;--rad-sm:0.5rem;--rad-md:0.75rem;--rad-lg:1rem;--rad-xl:1.5rem;--rad-2xl:2rem;--rad-full:999px;--bg-base:#050505;--bg-elevated:hsla(0,0%,4%,.75);--bg-surface:hsla(0,0%,5%,.9);--bg-panel:hsla(0,0%,6%,.82);--bg-hover:hsla(0,0%,7%,.9);--bg-input:hsla(0,0%,7%,.9);--txt-primary:#f5f5f5;--txt-secondary:hsla(0,0%,96%,.72);--txt-tertiary:hsla(0,0%,96%,.55);--txt-disabled:hsla(0,0%,96%,.38);--border-subtle:hsla(0,0%,96%,.06);--border-default:hsla(0,0%,96%,.1);--border-strong:hsla(0,0%,96%,.2);--border-focus:rgba(76,110,245,.4);--border-error:hsla(0,100%,71%,.4);--primary:#4c6ef5;--primary-hover:#5c7cff;--primary-light:rgba(76,110,245,.15);--secondary:#7950f2;--accent:linear-gradient(135deg,#4c6ef5,#7950f2);--success:#51cf66;--success-light:rgba(81,207,102,.15);--warning:#ffd43b;--warning-light:rgba(255,212,59,.15);--error:#ff6b6b;--error-light:hsla(0,100%,71%,.15);--info:#4dabf7;--info-light:rgba(77,171,247,.15);--shadow-sm:0 2px 8px rgba(0,0,0,.25);--shadow-md:0 8px 20px rgba(0,0,0,.35);--shadow-lg:0 12px 28px rgba(0,0,0,.45);--shadow-xl:0 20px 40px rgba(0,0,0,.55);--trans-instant:50ms cubic-bezier(0.4,0,0.2,1);--trans-fast:150ms cubic-bezier(0.4,0,0.2,1);--trans-base:200ms cubic-bezier(0.4,0,0.2,1);--trans-slow:300ms cubic-bezier(0.4,0,0.2,1);--trans-slower:500ms cubic-bezier(0.4,0,0.2,1);--ease-in:cubic-bezier(0.4,0,1,1);--ease-out:cubic-bezier(0,0,0.2,1);--ease-in-out:cubic-bezier(0.4,0,0.2,1);--ease-bounce:cubic-bezier(0.68,-0.55,0.265,1.55);--z-base:0;--z-dropdown:100;--z-sticky:200;--z-overlay:300;--z-modal:400;--z-toast:500;--touch-min:44px;color-scheme:dark;font-family:var(--font-sans)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{margin:0;background:var(--bg-base);color:var(--txt-primary);font-family:var(--font-sans);font-size:var(--txt-base);line-height:var(--lh-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}h1,h2,h3,h4,h5,h6{font-weight:var(--fw-semibold);line-height:var(--lh-tight);letter-spacing:var(--ls-tight);margin:0}h1{font-size:var(--txt-4xl)}h2{font-size:var(--txt-3xl)}h3{font-size:var(--txt-2xl)}h4{font-size:var(--txt-xl)}h5{font-size:var(--txt-lg)}h6{font-size:var(--txt-base)}p{margin:0;line-height:var(--lh-relaxed)}a{color:var(--primary);text-decoration:none;transition:color var(--trans-fast)}a:hover{color:var(--primary-hover)}code,kbd,samp{font-family:var(--font-mono);font-size:.9em}:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}::selection{background:var(--primary-light);color:var(--txt-primary)}main{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:var(--sp-6);gap:var(--sp-6)}.container{width:100%;max-width:1280px;margin:0 auto}@media (max-width:720px){main{padding:var(--sp-4);gap:var(--sp-4)}h1{font-size:var(--txt-3xl)}h2{font-size:var(--txt-2xl)}h3{font-size:var(--txt-xl)}}@media (max-width:430px){main{padding:var(--sp-3);gap:var(--sp-3)}h1{font-size:var(--txt-2xl)}h2{font-size:var(--txt-xl)}h3{font-size:var(--txt-lg)}}@supports (padding:env(safe-area-inset-top)){body{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}}