body {
            background: #ecf0f3;
            font-family: 'Segoe UI', sans-serif;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            animation: fadeIn 0.6s ease-in-out;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .login-form {
            background: #fff;
            padding: 40px 30px;
            border-radius: 15px;
            box-shadow: 0 12px 30px rgba(0,0,0,0.1);
            width: 100%;
            max-width: 400px;
        }

        .login-form h2 {
            font-weight: 700;
            color: #2c3e50;
        }

        .form-label {
            font-weight: 500;
            color: #2d3436;
        }

        .form-control {
            border-radius: 10px;
            padding-left: 2.5rem;
        }

        .input-icon {
            position: absolute;
            left: 15px;
            top: 10px;
            color: #aaa;
        }

        .input-group {
            position: relative;
        }

        .btn-primary {
            border-radius: 10px;
            background-color: #3498db;
            border: none;
        }

        .btn-primary:hover {
            background-color: #2980b9;
        }

        .app-logo {
            width: 60px;
            margin-bottom: 10px;
        }