/* Error / 404 Page */
.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    padding: 40px;
}

.error-page h1 {
    font-size: 72px;
    color: #667eea;
    margin-bottom: 10px;
}

.error-page h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
}

.error-page p {
    font-size: 16px;
    color: #666;
    margin-bottom: 30px;
}

.error-page .btn-primary {
    display: inline-block;
    width: auto;
    padding: 12px 30px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    transition: background 0.3s;
}

.error-page .btn-primary:hover {
    background: #5568d3;
}