.favicon-container {
    max-width: 720px;
    margin: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.favicon-container h3 {
    color: #0073aa;
    margin-top: 0;
}
.favicon-field {
    margin-bottom: 16px;
}
.favicon-field label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
}
.favicon-field input[type="file"] {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    background: #fff;
}
.favicon-field small {
    display: block;
    color: #666;
    font-size: 12px;
    margin-top: 4px;
}
.favicon-color-input {
    width: 60px !important;
    height: 36px;
    padding: 2px !important;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
}
.favicon-color-input:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.favicon-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    cursor: pointer;
}
.favicon-checkbox input {
    width: auto;
}
.favicon-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}
.favicon-col {
    flex: 1;
    min-width: 280px;
}
.favicon-button {
    background: #0073aa;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s;
}
.favicon-button:hover:not(:disabled) {
    background: #005a87;
}
.favicon-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.favicon-progress {
    margin-top: 20px;
    text-align: center;
    padding: 20px;
}
.favicon-progress p {
    margin-top: 12px;
    color: #666;
}
.favicon-spinner {
    width: 36px;
    height: 36px;
    margin: 0 auto;
    border: 4px solid #e0e0e0;
    border-top-color: #0073aa;
    border-radius: 50%;
    animation: fav-spin 0.8s linear infinite;
}
@keyframes fav-spin {
    to { transform: rotate(360deg); }
}
#favicon-result h3 {
    color: #28a745;
    margin-bottom: 16px;
}
.favicon-preview {
    margin-bottom: 20px;
    padding: 16px;
    background: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
}
.favicon-preview-items {
    display: flex;
    gap: 24px;
    align-items: flex-end;
    margin-top: 10px;
}
.favicon-preview-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.favicon-preview-item img {
    border: 1px solid #ddd;
    border-radius: 4px;
    background: #fff;
    background-image: linear-gradient(45deg, #eee 25%, transparent 25%), linear-gradient(-45deg, #eee 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #eee 75%), linear-gradient(-45deg, transparent 75%, #eee 75%);
    background-size: 10px 10px;
    background-position: 0 0, 0 5px, 5px -5px, -5px 0;
}
.favicon-preview-item span {
    font-size: 12px;
    color: #666;
}
.favicon-download-btn {
    background: #28a745;
}
.favicon-download-btn:hover:not(:disabled) {
    background: #218838;
}
.favicon-html-section {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid #eee;
}
.favicon-html-section p {
    font-size: 14px;
    line-height: 1.5;
    color: #444;
}
.favicon-html-section code {
    background: #e9ecef;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 13px;
}
#favicon-html-code {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-family: "Consolas", "Monaco", "Courier New", monospace;
    font-size: 13px;
    line-height: 1.5;
    background: #1e1e1e;
    color: #d4d4d4;
    resize: vertical;
    box-sizing: border-box;
}
.favicon-copy-btn {
    background: #2c3e50;
    margin-top: 10px;
}
.favicon-copy-btn:hover {
    background: #1a252f;
}
@media (max-width: 600px) {
    .favicon-row { flex-direction: column; }
    .favicon-col { min-width: 100%; }
}