.manual-container {
     max-width: 100%;
 }

.manual-nav {
    background: #f8f9fa;
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 25px;
}

.manual-nav h4 {
    margin-top: 0;
    margin-bottom: 12px;
    color: #333;
}

.manual-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}

.manual-nav ul li {
    width: calc(33.33% - 20px);
    min-width: 180px;
}

.manual-nav ul li a {
    text-decoration: none;
    color: #007bff;
    font-size: 14px;
    transition: color 0.2s;
}

.manual-nav ul li a:hover {
    color: #0056b3;
    text-decoration: underline;
}

.manual-download {
    text-align: right;
    margin-bottom: 20px;
}

.download-pdf-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #dc3545;
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s;
}

.download-pdf-btn:hover {
    background: #c82333;
    color: white;
}

.manual-content h3 {
    margin-top: 0;
    margin-bottom: 20px;
    color: #1e4663;
}

.manual-content h4 {
    margin-top: 25px;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #ffb347;
    color: #2c5a7a;
}

.manual-content p {
    margin-bottom: 12px;
    line-height: 1.6;
}

.manual-content ul, .manual-content ol {
    margin-bottom: 15px;
    padding-left: 25px;
}

.manual-content li {
    margin-bottom: 5px;
}

.warning-box {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 12px 18px;
    margin: 15px 0;
    border-radius: 8px;
}

.note-box {
    background: #d1ecf1;
    border-left: 4px solid #17a2b8;
    padding: 12px 18px;
    margin: 15px 0;
    border-radius: 8px;
}

.info-box {
    background: #e7f3ff;
    border-left: 4px solid #2196f3;
    padding: 12px 18px;
    margin: 20px 0 0;
    border-radius: 8px;
}

@media (max-width: 768px) {
    .manual-nav ul li {
        width: 100%;
    }

    .manual-download {
        text-align: center;
    }
}