:root{--bg-color: #0f172a;--text-color: #f8fafc;--primary-color: #38bdf8;--secondary-color: #818cf8;--accent-color: #f472b6;--card-bg: rgba(30, 41, 59, .7);--card-border: rgba(148, 163, 184, .1)}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-color);background-image:radial-gradient(circle at 10% 20%,rgba(56,189,248,.1) 0%,transparent 20%),radial-gradient(circle at 90% 80%,rgba(244,114,182,.1) 0%,transparent 20%);min-height:100vh}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.container{max-width:100%;margin:0 auto;padding:2rem}.card{background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--card-border);border-radius:1rem;padding:1.5rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;transition:transform .2s ease,box-shadow .2s ease}.card:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d}h1,h2,h3{font-weight:700;letter-spacing:-.025em}h1{font-size:3rem;background:linear-gradient(to right,var(--primary-color),var(--accent-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:2rem}button{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border:none;padding:.75rem 1.5rem;border-radius:.5rem;font-weight:600;cursor:pointer;transition:opacity .2s}button:hover{opacity:.9}input{background:#0f172a80;border:1px solid var(--card-border);color:#fff;padding:.75rem;border-radius:.5rem;width:100%;box-sizing:border-box}input:focus{outline:none;border-color:var(--primary-color);ring:2px solid rgba(56,189,248,.2)}