:root{--background:#0f172a;--surface:#1e293b;--surface-hover:#334155;--primary:#3b82f6;--primary-hover:#2563eb;--text:#f8fafc;--text-secondary:#94a3b8;--border:#334155;--radius:12px;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--text);font-family:var(--font-sans);flex-direction:column;min-height:100vh;line-height:1.6;display:flex}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.btn{border-radius:var(--radius);border:none;justify-content:center;align-items:center;padding:12px 24px;font-size:1rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px #3b82f64d}.btn-secondary{background-color:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background-color:var(--surface-hover)}.card{background-color:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:24px}.input{border-radius:var(--radius);background-color:var(--background);border:1px solid var(--border);width:100%;color:var(--text);padding:12px;font-size:1rem;transition:border-color .2s}.input:focus{border-color:var(--primary);outline:none}.label{color:var(--text-secondary);margin-bottom:8px;font-weight:500;display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.5s ease-out forwards fadeIn}