*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:#f1f5f9;color:#1e293b;min-height:100vh}#root{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.app-card{width:100%;max-width:420px;background:#fff;border-radius:12px;box-shadow:0 4px 20px #00000014;padding:32px}.app-title{font-size:1.25rem;font-weight:600;margin:0 0 8px;color:#0f172a}.app-desc{font-size:.9rem;color:#64748b;margin:0 0 24px;line-height:1.5}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:.875rem;font-weight:500;color:#334155;margin-bottom:6px}.form-input{width:100%;padding:12px 14px;font-size:1rem;border:1px solid #e2e8f0;border-radius:8px;background:#fff}.form-input:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f626}.btn{display:inline-block;width:100%;padding:12px 20px;font-size:1rem;font-weight:500;border:none;border-radius:8px;cursor:pointer;transition:background .15s}.btn-primary{background:#2563eb;color:#fff;margin-top:8px}.btn-primary:hover:not(:disabled){background:#1d4ed8}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.alert{padding:12px 14px;border-radius:8px;font-size:.9rem;margin-bottom:20px}.alert-success{background:#dcfce7;color:#166534}.alert-error{background:#fee2e2;color:#991b1b}.alert-info{background:#e0f2fe;color:#0369a1}.loading{color:#64748b;font-size:.9rem}.link-back{display:block;margin-top:20px;font-size:.9rem;color:#2563eb;text-decoration:none}.link-back:hover{text-decoration:underline}.password-hint{font-size:.8rem;color:#64748b;margin-top:4px}