:root{--primary: #6366f1;--primary-hover: #4f46e5;--bg: #0f172a;--card-bg: rgba(30, 41, 59, .7);--text: #f8fafc;--text-muted: #94a3b8;--border: rgba(255, 255, 255, .1);--glass: rgba(255, 255, 255, .05)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg);color:var(--text);line-height:1.5;min-height:100vh;display:flex;justify-content:center;align-items:center;overflow-x:hidden}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 50% 50%,#1e1b4b,#0f172a);z-index:-1}.container{width:100%;max-width:480px;padding:2rem}.card{background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:1.5rem;padding:2.5rem;box-shadow:0 25px 50px -12px #00000080;animation:slideUp .6s cubic-bezier(.16,1,.3,1)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}h1{font-size:2rem;font-weight:800;margin-bottom:.5rem;background:linear-gradient(to right,#818cf8,#c084fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-align:center}p.subtitle{color:var(--text-muted);text-align:center;margin-bottom:2rem;font-size:.9rem}.form-group{margin-bottom:1.5rem}label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.5rem;color:var(--text-muted)}input,textarea{width:100%;background:var(--glass);border:1px solid var(--border);border-radius:.75rem;padding:.875rem 1rem;color:#fff;font-size:1rem;transition:all .2s ease}input:focus,textarea:focus{outline:none;border-color:var(--primary);background:#ffffff14;box-shadow:0 0 0 4px #6366f133}button{width:100%;background:var(--primary);color:#fff;border:none;border-radius:.75rem;padding:1rem;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s ease;margin-top:1rem}button:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 10px 15px -3px #6366f166}button:active{transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed;transform:none}.result{margin-top:2rem;padding:1rem;background:#22c55e1a;border:1px solid rgba(34,197,94,.2);border-radius:.75rem;font-size:.85rem;animation:fadeIn .4s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.error{color:#f87171;font-size:.75rem;margin-top:.35rem}