.error-container {
        padding: 100px 20px;
        text-align: center;
        background: #fff;
    }
    .error-code {
        font-size: 120px;
        font-weight: 900;
        line-height: 1;
        color: #f2f2f2;
        margin-bottom: -50px;
    }
    .error-title {
        font-size: 32px;
        font-weight: 700;
        color: #333;
        position: relative;
        z-index: 1;
    }
    .error-message {
        font-size: 18px;
        color: #666;
        max-width: 500px;
        margin: 20px auto 40px;
    }
    .btn-custom {
        padding: 12px 25px;
        font-weight: 600;
        border-radius: 30px;
        transition: all 0.3s ease;
    }
    .btn-primary-custom {
        background-color: #007bff;
        border: none;
        color: white;
    }
    .btn-primary-custom:hover {
        background-color: #0056b3;
        transform: translateY(-2px);
    }
    .btn-outline-custom {
        border: 2px solid #ddd;
        color: #555;
        margin-left: 10px;
    }
    .btn-outline-custom:hover {
        background: #f8f9fa;
        border-color: #ccc;
    }