.extension-manager-container {
    font-family: var(--font-primary, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif);
    color: var(--color-text, #0f172a);
    background-color: var(--color-surface, #f8fafc);
    border-radius: 8px;
    overflow: hidden;
    max-width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.extension-manager-header {
    padding: 20px;
    background-color: var(--color-primary, #0f172a);
    color: var(--color-headerText, #ffffff);
}

.extension-manager-header h2 {
    margin: 0 0 8px 0;
    font-size: 24px;
    font-weight: 600;
}

.extension-manager-header p {
    margin: 0 0 16px 0;
    font-size: 14px;
    opacity: 0.8;
}

.extension-manager-tabs {
    display: flex;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin: 0 -20px;
    padding: 0 20px;
}

.tab-button {
    background: none;
    border: none;
    color: var(--color-headerText, #ffffff);
    opacity: 0.7;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    transition: opacity 0.2s;
}

.tab-button:hover {
    opacity: 0.9;
}

.tab-button.active {
    opacity: 1;
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--color-accent, #3b82f6);
}

.extension-manager-content {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.tab-content {
    display: none;
    height: 100%;
    overflow-y: auto;
    padding: 20px;
}

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

.extension-search {
    display: flex;
    margin-bottom: 16px;
    gap: 8px;
}

.extension-search input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 6px;
    font-size: 14px;
    background-color: var(--color-input, #ffffff);
    color: var(--color-inputText, #0f172a);
}

.extension-search input:focus {
    outline: none;
    border-color: var(--color-inputFocus, #3b82f6);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.extension-search button {
    background-color: var(--color-buttonSecondary, #f1f5f9);
    color: var(--color-buttonSecondaryText, #0f172a);
    border: none;
    border-radius: 6px;
    padding: 10px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.extension-search button:hover {
    background-color: var(--color-buttonSecondary, #e2e8f0);
}

.extension-search select {
    padding: 10px 16px;
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 6px;
    font-size: 14px;
    background-color: var(--color-input, #ffffff);
    color: var(--color-inputText, #0f172a);
}

.extension-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.extension-item {
    background-color: var(--color-surface, #ffffff);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 8px;
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s;
}

.extension-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.extension-item.disabled {
    opacity: 0.7;
}

.extension-header {
    display: flex;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid var(--color-border, #e2e8f0);
}

.extension-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background-color: var(--color-primary, #0f172a);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    flex-shrink: 0;
}

.extension-icon i {
    font-size: 20px;
}

.extension-title {
    flex: 1;
}

.extension-name {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
}

.extension-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--color-textSecondary, #64748b);
}

.extension-version {
    background-color: var(--color-buttonSecondary, #f1f5f9);
    color: var(--color-buttonSecondaryText, #0f172a);
    padding: 2px 6px;
    border-radius: 4px;
}

.extension-status {
    margin-left: 16px;
}

.extension-body {
    padding: 16px;
    border-bottom: 1px solid var(--color-border, #e2e8f0);
}

.extension-description {
    margin: 0 0 16px 0;
    font-size: 14px;
    line-height: 1.5;
}

.extension-permissions h4 {
    margin: 0 0 8px 0;
    font-size: 14px;
    font-weight: 600;
}

.permission-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.permission-item {
    background-color: var(--color-buttonSecondary, #f1f5f9);
    color: var(--color-buttonSecondaryText, #0f172a);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.permission-item i {
    color: var(--color-success, #10b981);
    font-size: 10px;
}

.extension-footer {
    padding: 12px 16px;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.extension-footer button {
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background-color 0.2s;
}

.extension-settings-button {
    background-color: var(--color-buttonSecondary, #f1f5f9);
    color: var(--color-buttonSecondaryText, #0f172a);
    border: none;
}

.extension-settings-button:hover {
    background-color: var(--color-buttonSecondary, #e2e8f0);
}

.extension-uninstall-button {
    background-color: transparent;
    color: var(--color-error, #ef4444);
    border: 1px solid currentColor;
}

.extension-uninstall-button:hover {
    background-color: rgba(239, 68, 68, 0.05);
}

.extension-store-item {
    display: flex;
    padding: 16px;
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 8px;
    background-color: var(--color-surface, #ffffff);
    transition: box-shadow 0.2s, transform 0.2s;
}

.extension-store-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.extension-store-item .extension-icon {
    width: 48px;
    height: 48px;
    margin-right: 16px;
}

.extension-store-item .extension-info {
    flex: 1;
}

.extension-store-item h3 {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 600;
}

.extension-store-item p {
    margin: 0 0 8px 0;
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-textSecondary, #64748b);
}

.extension-store-item .extension-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--color-textSecondary, #64748b);
}

.extension-rating {
    display: flex;
    align-items: center;
    gap: 2px;
}

.extension-rating i {
    color: #f59e0b;
    font-size: 12px;
}

.extension-rating span {
    margin-left: 4px;
}

.extension-actions {
    display: flex;
    align-items: center;
    margin-left: 16px;
}

.install-button {
    background-color: var(--color-buttonPrimary, #3b82f6);
    color: var(--color-buttonPrimaryText, #ffffff);
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.install-button:hover {
    background-color: var(--color-buttonPrimary, #2563eb);
}

.extension-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 0;
    color: var(--color-textSecondary, #64748b);
}

.extension-empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.extension-empty-state p {
    font-size: 16px;
    margin: 0;
}

.extension-settings-section {
    background-color: var(--color-surface, #ffffff);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.extension-settings-section h3 {
    margin: 0 0 16px 0;
    font-size: 18px;
    font-weight: 600;
}

.setting-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border, #e2e8f0);
}

.setting-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.setting-label {
    flex: 1;
    margin-left: 16px;
}

.setting-label span {
    display: block;
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 4px;
}

.setting-label p {
    margin: 0;
    font-size: 14px;
    color: var(--color-textSecondary, #64748b);
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--color-accent, #3b82f6);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--color-accent, #3b82f6);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 24px;
}

.slider.round:before {
    border-radius: 50%;
}

.developer-options {
    background-color: var(--color-surface, #ffffff);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 6px;
    padding: 16px;
}

.developer-notice {
    text-align: center;
    color: var(--color-textSecondary, #64748b);
    margin: 0;
    padding: 16px 0;
}

.developer-option {
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border, #e2e8f0);
}

.developer-option:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.developer-option label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.file-input-container {
    position: relative;
    display: flex;
}

.file-input-container input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.browse-button {
    background-color: var(--color-buttonSecondary, #f1f5f9);
    color: var(--color-buttonSecondaryText, #0f172a);
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    font-size: 14px;
    cursor: pointer;
}

.developer-option input[type="text"] {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 6px;
    margin-bottom: 8px;
}

.developer-option button {
    background-color: var(--color-buttonSecondary, #f1f5f9);
    color: var(--color-buttonSecondaryText, #0f172a);
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    font-size: 14px;
    cursor: pointer;
    margin-right: 8px;
}

.extension-mount-point {
    position: relative;
    display: block;
    width: 100%;
    z-index: 10;
}

.extension-panel {
    background-color: var(--color-surface, #1e293b);
    border: 1px solid var(--color-border, #334155);
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(-10px);
    max-height: 0;
    visibility: hidden;
    display: none;
}

.extension-panel.panel-visible {
    opacity: 1;
    position: absolute;
    right: 10px;
    transform: translateY(0);
    max-height: 1000px; 
    visibility: visible;
    display: block;
}

.extension-panel.hidden {
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    max-height: 0;
    visibility: hidden;
}

.extension-panel-header {
    background-color: var(--color-surface-accent, #1e293b);
    border-bottom: 1px solid var(--color-border, #334155);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
}

.extension-panel-header h3 {
    color: var(--color-text, #f8fafc);
    font-size: 14px;
    font-weight: 600;
    margin: 0;
}

.extension-panel-header i {
    margin-right: 8px;
}

.extension-panel-close {
    background: transparent;
    border: none;
    color: var(--color-text-muted, #94a3b8);
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    padding: 0;
    transition: color 0.2s ease;
}

.extension-panel-close:hover {
    color: var(--color-text, #f8fafc);
}

.extension-panel-content {
    padding: 16px;
    color: var(--color-text, #f8fafc);
}

.extension-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    background-color: transparent;
    border: none;
    margin-left: 12px;
    border-radius: 8px;
    color: var(--color-text, #f8fafc);
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
}

.extension-button::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.2);
    border-radius: 8px;
    opacity: 0;
    transform: scale(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.extension-button:active::before {
    opacity: 1;
    transform: scale(1);
}

.extension-button::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 8px;
    border: 1px solid rgba(51, 65, 85, 0.5);
    transition: border-color 0.3s ease;
    pointer-events: none;
}

.extension-button:hover::after {
    border-color: rgba(71, 85, 105, 0.5);
}

.extension-button:focus::after {
    border-color: rgba(59, 130, 246, 0.5);
}

.extension-button:hover {
    background-color: rgba(30, 41, 59, 0.7);
}

.extension-button:active {
    transform: scale(0.95);
}

.extension-button i {
    font-size: 16px;
    color: #94a3b8;
    transition: color 0.3s ease, transform 0.3s ease;
}

.extension-button:hover i {
    color: #e2e8f0;
    transform: scale(1.1);
}

.extension-button svg {
    width: 20px;
    height: 20px;
    color: #94a3b8;
    transition: color 0.3s ease, transform 0.3s ease;
}

.extension-button:hover svg {
    color: #e2e8f0;
    transform: scale(1.1);
}

.extension-button span {
    margin-left: 8px;
    font-size: 14px;
    color: #94a3b8;
    transition: color 0.3s ease;
}

.extension-button:hover span {
    color: #e2e8f0;
}

.extension-button-tooltip {
    position: absolute;
    left: -5px;
    bottom: -32px;
    transform: translateX(-50%);
    padding: 4px 8px;
    background-color: #1e293b;
    color: #e2e8f0;
    font-size: 12px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 1000;
}

.extension-button:hover .extension-button-tooltip {
    opacity: 1;
}

.extension-floating-container {
    position: absolute;
    z-index: 1000;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1)) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.06));
    pointer-events: none;
}

.extension-floating-container.container-visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.extension-floating-container.position-below .floating-panel-arrow {
    top: -8px;
    transform: rotate(45deg);
}

.extension-floating-container.position-above .floating-panel-arrow {
    bottom: -8px;
    transform: rotate(225deg);
}

.floating-panel-arrow {
    position: absolute;
    width: 16px;
    height: 16px;
    background-color: var(--color-surface, #1e293b);
    border-left: 1px solid var(--color-border, #334155);
    border-top: 1px solid var(--color-border, #334155);
    z-index: 1;
}

.extension-floating-container .extension-panel {
    border-radius: 8px;
    overflow: hidden;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    z-index: 2;
}

.dark .extension-manager-container {
    background-color: var(--color-surface, #1e293b);
    color: var(--color-text, #f8fafc);
}

.dark .extension-item,
.dark .extension-store-item,
.dark .extension-settings-section,
.dark .developer-options {
    background-color: var(--color-surface, #1e293b);
    border-color: var(--color-border, #334155);
}

.dark .extension-search input,
.dark .extension-search select,
.dark .developer-option input[type="text"] {
    background-color: var(--color-input, #1e293b);
    color: var(--color-inputText, #f8fafc);
    border-color: var(--color-border, #334155);
}

.dark .extension-search button,
.dark .extension-settings-button,
.dark .browse-button,
.dark .developer-option button {
    background-color: var(--color-buttonSecondary, #334155);
    color: var(--color-buttonSecondaryText, #f8fafc);
}

.dark .extension-version,
.dark .permission-item {
    background-color: var(--color-buttonSecondary, #334155);
    color: var(--color-buttonSecondaryText, #f8fafc);
}

.dark .extension-header,
.dark .extension-body,
.dark .setting-item,
.dark .developer-option {
    border-color: var(--color-border, #334155);
}

.extension-notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 350px;
}

.extension-notification {
    background-color: var(--color-surface, #ffffff);
    border-left: 4px solid var(--color-info, #3b82f6);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    animation: slideIn 0.3s ease-out forwards;
    max-width: 100%;
}

.extension-notification.hiding {
    animation: slideOut 0.3s ease-in forwards;
}

.extension-notification.success {
    border-left-color: var(--color-success, #10b981);
}

.extension-notification.warning {
    border-left-color: var(--color-warning, #f59e0b);
}

.extension-notification.error {
    border-left-color: var(--color-error, #ef4444);
}

.extension-notification-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background-color: rgba(0, 0, 0, 0.03);
}

.extension-notification-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.extension-notification-close {
    background: none;
    border: none;
    color: var(--color-textSecondary, #64748b);
    cursor: pointer;
    font-size: 18px;
    padding: 0;
    line-height: 1;
}

.extension-notification-body {
    padding: 12px 16px;
}

.extension-notification-body p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}