:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color-scheme:dark light}body{margin:0;min-height:100vh}.app-root{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at top,#1f2937,#020617);color:#e5e7eb}.card{background:#0f172ae6;border-radius:16px;padding:24px 28px;max-width:360px;width:100%;box-shadow:0 20px 40px #0006}h1{margin-top:0;margin-bottom:4px;font-size:1.6rem}.subtitle{margin-top:0;margin-bottom:16px;font-size:.9rem;color:#9ca3af}.form{display:flex;flex-direction:column;gap:12px}label{display:flex;flex-direction:column;font-size:.9rem;gap:4px}input{padding:8px 10px;border-radius:8px;border:1px solid #374151;background:#020617;color:#e5e7eb}input:focus{outline:2px solid #3b82f6;outline-offset:1px;border-color:#3b82f6}button{margin-top:8px;padding:8px 12px;border-radius:999px;border:none;cursor:pointer;font-weight:500;background:#3b82f6;color:#fff}button[disabled]{opacity:.6;cursor:default}.error{margin-top:8px;color:#f97373;font-size:.85rem}.hint{margin-top:16px;font-size:.8rem;color:#9ca3af}