.login-card { background: rgba(255, 255, 255, 0.03); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, 0.1); padding: 3rem; border-radius: 20px; width: 100%; max-width: 450px; text-align: center; }
        .form-control { width: 100%; padding: 14px; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; color: #fff; margin-bottom: 15px; }
        .btn-primary { width: 100%; padding: 14px; background: linear-gradient(135deg, #667eea, #764ba2); color: white; border: none; border-radius: 10px; cursor: pointer; font-weight: bold; }
        .alert-error { color: #f87171; margin-bottom: 15px; }
        .alert-success { color: #34d399; margin-bottom: 15px; }