body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: #f6f8fa;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    color: #333;
}

.error-container {
    text-align: center;
    padding: 30px;
    max-width: 600px;
}

.error-code {
    font-size: 72px;
    margin-bottom: 10px;
}

.error-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 15px;
}

.error-message {
    font-size: 18px;
    margin-bottom: 30px;
    color: #666;
}

.error-actions .btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    margin: 0 10px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background 0.3s ease;
}

.btn {
    background: #ddd;
    color: #333;
}

.btn:hover {
    background: #ccc;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
}