* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            padding: 20px;
        }

        .login-container {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            width: 100%;
            max-width: 400px;
            padding: 40px;
            transition: transform 0.3s ease;
        }

        .login-container:hover {
            transform: translateY(-5px);
        }

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

        .login-header h1 {
            font-size: 1.8rem;
            color: #333;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .login-header p {
            color: #666;
            font-size: 0.95rem;
        }

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

        .form-group label {
            display: block;
            font-size: 0.9rem;
            color: #555;
            margin-bottom: 6px;
            font-weight: 500;
        }

        .form-group input {
            width: 100%;
            padding: 14px 16px;
            border: 1px solid #ddd;
            border-radius: 12px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background: #f9f9f9;
        }

        .form-group input:focus {
            border-color: #667eea;
            box-shadow: 0 0 10px rgba(102, 126, 234, 0.2);
            outline: none;
            transform: translateY(-2px);
        }

        .form-group input:focus+.input-line {
            width: 100%;
        }

        .input-line {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #667eea;
            transition: width 0.3s ease;
        }

        .forgot-password {
            text-align: right;
            margin-bottom: 20px;
        }

        .forgot-password a {
            font-size: 0.9rem;
            color: #667eea;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .forgot-password a:hover {
            color: #555;
            text-decoration: underline;
        }

        .btn-login {
            width: 100%;
            padding: 14px;
            background: linear-gradient(to right, #667eea, #764ba2);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
        }

        .btn-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
            background: linear-gradient(to right, #5a67d8, #6b46c1);
        }

        .signup-link {
            text-align: center;
            margin-top: 20px;
            font-size: 0.9rem;
            color: #666;
        }

        .signup-link a {
            color: #667eea;
            font-weight: 600;
            text-decoration: none;
        }

        .signup-link a:hover {
            text-decoration: underline;
        }

        @media (max-width: 480px) {
            .login-container {
                padding: 30px 20px;
            }

            .login-header h1 {
                font-size: 1.5rem;
            }

            .form-group input {
                padding: 12px 14px;
            }

            .btn-login {
                padding: 12px;
            }
        }