body {
            font-family: 'Sarabun', 'TH Sarabun PSK', sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
        }
        .login-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }
        .form-input {
            transition: all 0.3s ease;
        }
        .form-input:focus {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(13, 148, 136, 0.2);
        }
        .btn-primary {
            background: linear-gradient(135deg, #0d9488 0%, #14b8a6 100%);
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(13, 148, 136, 0.3);
        }