/* --- 設定画面スタイル --- */
body.compact-settings-mode .settings-group {
    margin-bottom: 8px;
}
body.compact-settings-mode .danger-zone {
    margin-top: 15px;
}

.settings-group {
    margin-bottom: 25px;
    padding: 15px;
    border: 1px solid var(--border-tertiary);
    border-radius: 8px;
    background-color: var(--bg-tertiary);
    transition:
        background-color 0.3s ease,
        border-color 0.3s ease;
}

.settings-group h3 {
    margin-bottom: 15px;
    font-size: 16px;
    color: var(--text-link);
    border-bottom: 1px solid var(--border-tertiary);
    padding-bottom: 5px;
    transition:
        color 0.3s ease,
        border-color 0.3s ease;
}

.settings-actions {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-tertiary);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.settings-actions.bottom {
    margin-bottom: 20px;
}

.settings-actions button {
    width: 100%;
}

.danger-zone {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid var(--border-danger);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.danger-zone button {
    width: 100%;
}

#update-app-btn {
    background-color: var(--bg-button-update);
}

#update-app-btn:hover {
    background-color: var(--bg-button-update-hover);
}

#clear-data-btn {
    background-color: var(--bg-button-delete);
}

#clear-data-btn:hover {
    background-color: var(--bg-button-delete-hover);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    cursor: pointer;
    color: var(--text-primary);
}

.checkbox-label input[type='checkbox'] {
    width: auto;
    margin-bottom: 0;
    cursor: pointer;
}
.gemini-tier-switch-container {
    padding: 8px 15px;
}
.gemini-tier-switch-row {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 40px;
    cursor: pointer;
}
.gemini-tier-switch-row span {
    flex: 1 1 auto;
}
.gemini-tier-switch-row input[type='checkbox'] {
    position: relative;
    flex: 0 0 auto;
    width: 42px;
    height: 25px;
    margin-left: auto;
    border: 0;
    border-radius: 999px;
    background-color: var(--border-secondary);
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
    transition: background-color 0.18s ease;
}
.gemini-tier-switch-row input[type='checkbox']::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 21px;
    height: 21px;
    border-radius: 50%;
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: transform 0.18s ease;
}
.gemini-tier-switch-row input[type='checkbox']:checked {
    background-color: var(--bg-button);
}
.gemini-tier-switch-row input[type='checkbox']:checked::after {
    transform: translateX(17px);
}

.param-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.image-upload-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.settings-action-button {
    background-color: var(--bg-button-action);
    padding: 8px 15px;
    border-radius: 5px;
    border: none;
    font-size: 14px;
    color: var(--text-light);
    cursor: pointer;
}

.settings-action-button:hover {
    background-color: var(--bg-button-action-hover);
}

.settings-delete-button {
    background-color: var(--bg-button-delete);
    padding: 8px 15px;
    border-radius: 5px;
    border: none;
    font-size: 14px;
    color: var(--text-light);
    cursor: pointer;
    margin-left: auto;
}

.settings-delete-button:hover {
    background-color: var(--bg-button-delete-hover);
}

.background-thumbnail {
    max-width: 100px;
    max-height: 60px;
    border-radius: 4px;
    border: 1px solid var(--border-tertiary);
    object-fit: cover;
    vertical-align: middle;
}

.icon-thumbnail {
    max-width: 40px;
    max-height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-tertiary);
    object-fit: cover;
    vertical-align: middle;
    margin-left: 10px;
}

#gemini-additional-models,
#deepseek-additional-models,
#claude-additional-models,
#openai-additional-models,
#xai-additional-models,
#llmaggregator-additional-models {
    height: 53px;
    max-height: 53px;
    resize: vertical;
}

/* ── APIキー管理UI ── */
.api-keys-list {
    margin-bottom: 15px;
}

.api-key-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 5px;
    padding: 5px;
    border: 1px solid var(--border-secondary);
    border-radius: 5px;
    background-color: var(--bg-tertiary);
    transition:
        background-color 0.3s ease,
        border-color 0.3s ease;
}

.api-key-item:last-child {
    margin-bottom: 0;
}

.api-key-item.active {
    border-color: var(--bg-button);
    background-color: rgba(var(--bg-button-rgb, 74, 144, 226), 0.1);
}

.api-key-item-label {
    flex: 1;
    font-size: 12px;
    font-weight: bold;
    color: var(--text-secondary);
    min-width: 0;
    padding: 6px 8px;
    border: 1px solid var(--border-primary);
    border-radius: 3px;
    background-color: var(--bg-input);
}

.api-key-item-input {
    flex: 1;
    min-width: 0;
    padding: 6px 8px;
    font-size: 13px;
    border: 1px solid var(--border-primary);
    border-radius: 3px;
    background-color: var(--bg-input);
    color: var(--text-primary);
    margin-bottom: 0;
}

.api-key-item-actions {
    display: flex;
    gap: 5px;
    flex-shrink: 0;
}

.api-key-item-actions button {
    padding: 4px 8px;
    font-size: 11px;
    min-width: auto;
    line-height: 1.2;
}

.api-key-select-btn {
    background-color: var(--bg-button-save);
    color: var(--text-light);
}

.api-key-select-btn:hover {
    background-color: var(--bg-button-save-hover);
}

.api-key-select-btn.active {
    background-color: var(--bg-button);
    color: var(--text-light);
}

.api-key-select-btn.active:hover {
    background-color: var(--bg-button-hover);
}

.api-key-delete-btn {
    background-color: var(--bg-button-delete);
    color: var(--text-light);
}

.api-key-delete-btn:hover {
    background-color: var(--bg-button-delete-hover);
}

.add-api-key-btn {
    width: 100%;
    padding: 8px 12px;
    font-size: 13px;
    background-color: var(--bg-button-action);
    color: var(--text-light);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.add-api-key-btn:hover {
    background-color: var(--bg-button-action-hover);
}

.add-api-key-btn:disabled {
    background-color: var(--bg-button-disabled);
    cursor: not-allowed;
}

#settings-screen.auto-save-mode .app-header #settings-save-notice,
#settings-screen.auto-save-mode .app-header .js-save-settings-btn {
    display: none !important;
}

.twin-engine-api-config-item .api-key-item-label {
    flex: 0 0 120px;
}

.twin-engine-api-config-item .api-key-item-input {
    flex: 1;
}

.twin-engine-config-provider,
.twin-engine-config-model {
    padding: 6px 8px;
    font-size: 13px;
    border: 1px solid var(--border-primary);
    border-radius: 3px;
    background-color: var(--bg-input);
    color: var(--text-primary);
    margin-bottom: 0;
    margin-left: 5px;
    flex: 1;
    min-width: 120px;
}

#footer-resummarize-btn {
    background-color: var(--bg-button);
}

#footer-resummarize-btn:hover:not(:disabled) {
    background-color: var(--bg-button-hover);
}

.proofreading-api-config-item,
.twin-engine-api-config-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.proofreading-api-config-item > div,
.twin-engine-api-config-item > div {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.proofreading-api-config-item .api-key-item-label,
.proofreading-api-config-item .api-key-item-input,
.proofreading-api-config-item .twin-engine-config-provider,
.proofreading-api-config-item .twin-engine-config-model,
.twin-engine-api-config-item .api-key-item-label,
.twin-engine-api-config-item .api-key-item-input,
.twin-engine-api-config-item .twin-engine-config-provider,
.twin-engine-api-config-item .twin-engine-config-model {
    flex: 1 1 auto;
    min-width: 0;
    margin-bottom: 0;
}

.proofreading-api-config-item .api-key-item-label,
.twin-engine-api-config-item .api-key-item-label {
    flex-grow: 2;
}

.proofreading-api-config-item .api-key-item-input,
.twin-engine-api-config-item .api-key-item-input {
    flex-grow: 3;
}

.proofreading-api-config-item .twin-engine-config-provider,
.twin-engine-api-config-item .twin-engine-config-provider {
    flex: 1 1 120px;
}

.proofreading-api-config-item .twin-engine-config-model,
.twin-engine-api-config-item .twin-engine-config-model {
    flex: 2 1 150px;
}

.proofreading-api-config-item .api-key-item-actions,
.twin-engine-api-config-item .api-key-item-actions {
    flex-shrink: 0;
    margin-left: auto;
}

.proofreading-api-config-item textarea.api-key-item-input {
    width: 100%;
    flex-basis: 100%;
}

/* ── スライダー・フォームコントロール ── */
.opacity-slider-container {
    margin-bottom: 15px;
}
.opacity-slider-container:last-child {
    margin-bottom: 5px;
}
.input-slider-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 4px;
}
.input-slider-wrapper input[type='number'] {
    width: 60px;
    margin-bottom: 0;
    flex-shrink: 0;
    text-align: center;
}
.input-slider-wrapper input[type='range'] {
    flex-grow: 1;
    width: 100%;
}
.opacity-disable-label {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
}
.opacity-disable-label input[type='checkbox'] {
    margin-right: 4px;
}
.font-slider-container {
    margin-bottom: 5px;
}
.param-slider-container {
    margin-bottom: 15px;
}
.param-slider-container label {
    display: block;
    margin-bottom: 4px;
}
.param-slider-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}
.param-slider-wrapper input[type='number'] {
    width: 70px;
    margin-bottom: 0;
    flex-shrink: 0;
    text-align: center;
}
.param-slider-wrapper input[type='range'] {
    flex-grow: 1;
    width: 100%;
}
.param-default-checkbox-label {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    cursor: pointer;
    margin-bottom: 0 !important;
}
.param-slider-max-input {
    width: 60px !important;
    font-size: 12px !important;
    padding: 4px 6px !important;
    margin-top: 5px !important;
    margin-bottom: 0 !important;
}
.param-slider-wrapper input:disabled,
.param-slider-max-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--bg-secondary);
}
#settings-group-gemini-other-params .param-slider-container,
#settings-group-deepseek-other-params .param-slider-container,
#settings-group-claude-other-params .param-slider-container,
#settings-group-openai-other-params .param-slider-container,
#settings-group-xai-other-params .param-slider-container,
#settings-group-llmaggregator-other-params .param-slider-container {
    margin-bottom: 8px;
}

.set-thinking-budget-btn,
.set-claude-param-btn {
    flex-grow: 1;
}

.api-key-help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    min-width: 18px;
    font-size: 12px;
    font-weight: bold;
    color: var(--text-light);
    background-color: var(--bg-button-action);
    border: 1px solid var(--border-tertiary);
    border-radius: 50%;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease;
    flex-shrink: 0;
    margin-left: 5px;
    vertical-align: middle;
}
.api-key-help-icon:hover {
    background-color: var(--bg-button-action-hover);
}
body.pastel-yellow-mode .api-key-help-icon {
    color: #424242;
}

body.slim-settings-headers details.settings-group > summary,
body.slim-settings-headers div.settings-group > h3,
body.slim-settings-headers div.settings-group > details > summary {
    margin-bottom: 0 !important;
    border-bottom: none !important;
    padding-bottom: 0 !important;
}
body.flat-settings-mode .settings-group {
    border: none !important;
    background-color: transparent !important;
    box-shadow: none !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    border-radius: 0 !important;
}

#settings-screen .main-content {
    font-size: calc(14px * var(--settings-ui-scale));
}
#settings-screen .main-content .settings-group,
#settings-screen .main-content .settings-group details,
#settings-screen .main-content .danger-zone,
#settings-screen .main-content input:not([type='range']),
#settings-screen .main-content select,
#settings-screen .main-content textarea,
#settings-screen .main-content button,
#settings-screen .main-content label,
#settings-screen .main-content .checkbox-label {
    font-size: 1em;
}

#settings-screen .main-content summary {
    font-size: 1em !important;
}

#settings-screen .main-content .settings-group > summary,
#settings-screen .main-content .settings-group > details > summary,
#settings-screen .main-content h3 {
    font-size: 1.142em !important;
}

#settings-screen .main-content p[style*='font-size: 11px'],
#settings-screen .main-content div[style*='font-size: 11px'],
#settings-screen .main-content span[style*='font-size: 11px'] {
    font-size: 0.785em !important;
}
#settings-screen .api-key-help-icon {
    width: 1.5em;
    height: 1.5em;
    min-width: 1.5em;
    font-size: 0.85em;
}