* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .logo {
            text-align: center;
            margin-bottom: 30px;
        }

        .logo h1 {
            color: white;
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.3);
        }

        .logo p {
            color: rgba(255,255,255,0.8);
            font-size: 1.1rem;
        }

        .container {
            width: 100%;
            max-width: 400px;
        }

        .card {
            background: white;
            border-radius: 20px;
            padding: 40px 30px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
            backdrop-filter: blur(10px);
        }

        .card h2 {
            text-align: center;
            color: #333;
            margin-bottom: 30px;
            font-size: 1.8rem;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #555;
            font-weight: 600;
            font-size: 14px;
        }

        .form-group input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e1e5e9;
            border-radius: 10px;
            font-size: 16px;
            transition: all 0.3s ease;
            background: #f8f9fa;
        }

        .form-group input:focus {
            outline: none;
            border-color: #667eea;
            background: white;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }

        button {
            width: 100%;
            padding: 14px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 10px;
        }

        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
        }

        button:active {
            transform: translateY(0);
        }

        .link-container {
            text-align: center;
            margin-top: 25px;
            padding-top: 20px;
            border-top: 1px solid #e1e5e9;
        }

        .link-container a {
            color: #667eea;
            text-decoration: none;
            font-weight: 600;
            transition: color 0.3s ease;
        }

        .link-container a:hover {
            color: #764ba2;
            text-decoration: underline;
        }

        .alert {
            padding: 12px 16px;
            border-radius: 10px;
            margin-bottom: 20px;
            font-size: 14px;
            text-align: center;
        }

        .alert-error {
            background: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
        }

        .alert-success {
            background: #d1edff;
            color: #155724;
            border: 1px solid #c3e6cb;
        }

        @media (max-width: 480px) {
            .card {
                padding: 30px 20px;
            }
            
            .logo h1 {
                font-size: 2rem;
            }
            
            .logo p {
                font-size: 1rem;
            }
        }