.notice-box {
    display: flex;
    gap: 15px;
    align-items: center;
    background-color: #e8f4fd;
    border-left: 4px solid #2196F3;
    padding: 20px;
    border-radius: 0 4px 4px 0;
    margin: 25px 0;
}

.notice-icon {
    font-size: 28px;
    color: #2196F3;
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.notice-content h3 {
    margin-top: 0;
    margin-bottom: 8px;
    color: #0d47a1;
}

.notice-content p {
    margin: 0;
    color: #333;
}

.mac-features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 25px 0;
}

.feature-card {
    flex: 1;
    min-width: 200px;
    display: flex;
    gap: 15px;
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 20px;
    border: 1px solid #ddd;
}

.feature-icon {
    font-size: 24px;
    color: #2196F3;
    min-width: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-content h3 {
    margin-top: 0;
    margin-bottom: 8px;
    color: #333;
}

.feature-content p {
    margin: 0;
    color: #555;
}

.code-example {
    background-color: #f5f5f5;
    border-radius: 5px;
    padding: 15px;
    margin: 15px 0;
    overflow-x: auto;
}

.code-example pre {
    margin: 0;
    font-family: monospace;
    color: #333;
}

.find-mac-section {
    margin-top: 50px;
}

.os-tabs {
    margin: 25px 0;
}

.tab-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 20px;
    border-bottom: 1px solid #ddd;
}

.tab-btn {
    padding: 10px 20px;
    background-color: #f5f5f5;
    border: 1px solid #ddd;
    border-bottom: none;
    border-radius: 5px 5px 0 0;
    cursor: pointer;
    font-weight: bold;
    color: #555;
}

.tab-btn.active {
    background-color: #fff;
    color: #2196F3;
    border-bottom: 2px solid #2196F3;
    position: relative;
    bottom: -1px;
}

.tab-content {
    background-color: #fff;
    border-radius: 0 0 5px 5px;
}

.tab-pane {
    display: none;
    padding: 20px;
    border: 1px solid #ddd;
    border-top: none;
}

.tab-pane.active {
    display: block;
}

.method {
    margin-bottom: 30px;
}

.method h4 {
    background-color: #f9f9f9;
    padding: 10px 15px;
    border-radius: 5px;
    margin-top: 0;
}

.method ol, .method ul {
    padding-left: 25px;
    margin: 15px 0;
}

.method li {
    margin-bottom: 8px;
}

.method-image {
    margin: 15px 0;
    text-align: center;
}

.method-image img {
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
    border-radius: 5px;
}

code, kbd {
    background-color: #f5f5f5;
    padding: 2px 5px;
    border-radius: 3px;
    font-family: monospace;
    color: #333;
}

.note-box {
    background-color: #fff8e1;
    border-left: 4px solid #ffc107;
    padding: 15px 20px;
    margin: 15px 0;
    border-radius: 0 5px 5px 0;
}

.mac-usage-section {
    margin-top: 50px;
}

.usage-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 25px 0;
}

.usage-card {
    flex: 1;
    min-width: 200px;
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 20px;
    border: 1px solid #ddd;
    text-align: center;
}

.usage-icon {
    font-size: 30px;
    color: #2196F3;
    margin-bottom: 15px;
}

.usage-card h3 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #333;
}

.usage-card p {
    margin: 0;
    color: #555;
}

.faq-section {
    margin-top: 50px;
}

.faq-item {
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow: hidden;
}

.faq-item h3 {
    margin: 0;
    padding: 15px 20px;
    background-color: #f5f5f5;
    color: #333;
    cursor: pointer;
    position: relative;
}

.faq-item h3::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
}

.faq-item h3.open::after {
    content: '-';
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease;
}

.faq-answer.open {
    max-height: 500px; /* Adjust as needed */
    padding: 20px;
}

.faq-answer ul {
    padding-left: 20px;
}

@media (max-width: 768px) {
    .mac-features, .usage-cards {
        flex-direction: column;
    }
    
    .tab-nav {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 5px;
        gap: 0;
    }
    
    .tab-btn {
        flex: 1;
        text-align: center;
        white-space: nowrap;
        padding: 10px;
    }
}

.mac-tools-section {
    margin-bottom: 50px;
}

.tools-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 25px;
}

.tool-card {
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.tool-header {
    background-color: #f5f5f5;
    padding: 15px 20px;
    border-bottom: 1px solid #ddd;
}

.tool-header h3 {
    margin: 0;
    color: #333;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tool-header h3 i {
    color: #2196F3;
}

.tool-body {
    padding: 20px;
}

.tool-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.option-group label {
    font-weight: bold;
    color: #555;
}

.option-group select {
    padding: 8px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f9f9f9;
}

.mac-result {
    display: flex;
    margin-bottom: 20px;
    position: relative;
}

.mac-result input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: monospace;
    font-size: 16px;
    background-color: #f5f5f5;
}

.btn-copy {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background-color: transparent;
    border: none;
    color: #555;
    font-size: 16px;
    cursor: pointer;
    padding: 5px 10px;
}

.btn-copy:hover {
    color: #2196F3;
}

.tool-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.btn-primary, .btn-secondary {
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.btn-primary {
    background-color: #2196F3;
    color: white;
}

.btn-primary:hover {
    background-color: #0d8aee;
}

.btn-secondary {
    background-color: #f5f5f5;
    color: #333;
    border: 1px solid #ddd;
}

.btn-secondary:hover {
    background-color: #e0e0e0;
}

.mac-visualization {
    margin-top: 25px;
    border-top: 1px solid #eee;
    padding-top: 20px;
}

.mac-visualization h4 {
    margin-top: 0;
    margin-bottom: 15px;
    color: #333;
    text-align: center;
}

.mac-breakdown {
    display: flex;
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow: hidden;
}

.mac-part {
    padding: 15px;
    text-align: center;
}

.mac-part.oui-part {
    background-color: #e3f2fd;
    border-right: 1px solid #ddd;
    flex: 1;
}

.mac-part.nic-part {
    background-color: #f5f5f5;
    flex: 1;
}

.mac-bytes {
    font-family: monospace;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 5px;
}

.mac-part-label {
    font-size: 12px;
    color: #555;
}

.lookup-form, .validator-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.lookup-form input, .validator-form input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: monospace;
}

.lookup-result, .validation-result {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 15px;
    min-height: 100px;
}

.result-placeholder {
    color: #777;
    font-style: italic;
    text-align: center;
    padding: 20px 0;
}

.manufacturer-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.manufacturer-name {
    font-size: 18px;
    font-weight: bold;
    color: #2196F3;
}

.manufacturer-details {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 5px 10px;
}

.detail-key {
    font-weight: bold;
    color: #555;
}

.validation-badge {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 20px;
    font-weight: bold;
    margin-bottom: 15px;
}

.validation-badge.valid {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}

.validation-badge.invalid {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ef9a9a;
}

.validation-details {
    margin-top: 10px;
}

@media (max-width: 768px) {
    .tools-container {
        grid-template-columns: 1fr;
    }
    
    .tool-options, .lookup-form, .validator-form {
        flex-direction: column;
    }
    
    .mac-breakdown {
        flex-direction: column;
    }
    
    .mac-part.oui-part {
        border-right: none;
        border-bottom: 1px solid #ddd;
    }
}