/* Custom CSS untuk tampilan elegan dengan background siluet menara suar */
        body {
            background: linear-gradient(135deg, rgba(245, 247, 250, 0.9) 0%, rgba(195, 207, 226, 0.9) 100%), 
                        url('admin/assets/img/bg.png') no-repeat center center; /* Ganti dengan path gambar siluet menara suar dan logo */
            background-size: cover;
            background-attachment: fixed;
            font-family: 'Roboto', sans-serif;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0;
            color: #333;
        }

        .login-container {
            width: 100%;
            max-width: 400px;
            animation: slideIn 1.2s ease-out;
        }

        .login-card {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 25px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
            padding: 40px;
            text-align: center;
            border: 1px solid rgba(0, 0, 0, 0.05);
            backdrop-filter: blur(10px);
        }

        h2 {
            font-family: 'Playfair Display', serif;
            color: #2c3e50;
            font-weight: 700;
            font-size: 2.5rem;
            margin-bottom: 30px;
            letter-spacing: 0.5px;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
        }

        .input-group {
            margin-bottom: 20px;
            text-align: left;
        }

        label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
            color: #7f8c8d;
        }

        input[type="text"], input[type="password"] {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            transition: all 0.3s ease;
            box-sizing: border-box;
        }

        input[type="text"]:focus, input[type="password"]:focus {
            border-color: #3498db;
            box-shadow: 0 0 10px rgba(52, 152, 219, 0.3);
            outline: none;
        }

        .login-btn {
            background: linear-gradient(45deg, #3498db, #2980b9);
            border: none;
            border-radius: 30px;
            padding: 15px 40px;
            font-size: 1.1rem;
            font-weight: 500;
            color: #fff;
            cursor: pointer;
            transition: all 0.4s ease;
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
            width: 100%;
            text-transform: none;
            letter-spacing: 0.5px;
        }

        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(52, 152, 219, 0.4);
            background: linear-gradient(45deg, #2980b9, #3498db);
        }

        /* Error message styling */
        p[style*="color: red"] {
            background: rgba(255, 0, 0, 0.1);
            color: #e74c3c;
            padding: 10px;
            border-radius: 10px;
            margin-bottom: 20px;
            border: 1px solid rgba(231, 76, 60, 0.3);
            font-weight: 500;
        }

        /* Animasi Keyframes */
        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(50px) scale(0.95);
            }
            to {
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        /* Responsif untuk mobile */
        @media (max-width: 768px) {
            .login-card {
                padding: 30px;
                margin: 20px;
                border-radius: 20px;
            }
            h2 {
                font-size: 2rem;
            }
            input[type="text"], input[type="password"] {
                padding: 10px 12px;
            }
            .login-btn {
                padding: 12px 30px;
                font-size: 1rem;
            }
        }