/* Settings owns its surfaces and controls; application-wide styles remain unchanged. */
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) {
    --settings-muted: var(--text-secondary);
    --settings-border: color-mix(in srgb, var(--text-secondary) 22%, var(--bg-elevated));
    --settings-accent-bg: color-mix(in srgb, var(--accent-blue) 14%, var(--bg-elevated));
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    padding: 20px;
}
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) [hidden],
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay).hidden { display: none !important; }
#settingsModal .settings-modal-content {
    display: flex;
    flex-direction: column;
    width: min(860px, calc(100vw - 40px));
    max-width: 860px;
    height: auto;
    min-height: 0;
    max-height: min(720px, calc(100dvh - 48px));
    padding: 0;
    overflow: hidden;
    background: var(--bg-elevated);
    border: 1px solid var(--settings-border);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}
#settingsModal .modal-header, #settingsModal .modal-footer { flex: 0 0 auto; margin: 0; padding: 14px 20px; }
#settingsModal .modal-header { display: flex; align-items: center; justify-content: space-between; }
#settingsModal .modal-header h3 { margin: 0; font-size: var(--text-base); font-weight: 650; letter-spacing: var(--letter-spacing); }
#settingsModal .modal-footer { display: flex; justify-content: flex-end; padding-top: 10px; padding-bottom: 10px; border-top: 1px solid var(--settings-border); }
#settingsModal .settings-tab-bar { display: flex; flex: 0 0 auto; flex-direction: row; flex-wrap: nowrap; gap: 4px; padding: 0 16px; overflow-x: auto; border-bottom: 1px solid var(--settings-border); background: transparent; }
#settingsModal .settings-tab { flex: 0 0 auto; width: auto; text-align: center; white-space: nowrap; padding: 10px 12px; margin: 0; background: transparent; color: var(--text-secondary); border: 0; border-bottom: 2px solid transparent; border-radius: 0; font: inherit; font-size: var(--text-base); font-weight: 500; cursor: pointer; }
#settingsModal .settings-tab:hover { color: var(--text-primary); background: var(--bg-surface); }
#settingsModal .settings-tab.active { color: var(--text-primary); border-bottom-color: var(--accent-blue); font-weight: 650; }
#settingsModal .settings-tab-content { display: none; flex: 0 1 auto; min-width: 0; min-height: 0; overflow: auto; overscroll-behavior: contain; }
#settingsModal .settings-tab-content.active { display: block; }
#settingsModal .modal-body { padding: 20px; max-height: none; overflow: visible; }
#settingsModal h4 { margin: 0 0 12px; font-size: var(--text-base); font-weight: 650; letter-spacing: var(--letter-spacing); color: var(--text-primary); }
#settingsModal p, .settings-description { margin: 0 0 12px; color: var(--text-secondary); font-size: var(--text-base); line-height: var(--leading-normal); }
#settingsModal .settings-card { margin: 0; padding: 0; min-width: 0; background: transparent; border: 0; border-radius: 0; }
#settingsModal .settings-card + .settings-card { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--settings-border); }
#settingsModal .settings-list, #settingsModal .mcp-server-cards { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--settings-border); border-radius: 8px; overflow: hidden; }
#settingsModal .settings-list > article, #settingsModal .mcp-server-card { padding: 12px 14px; min-width: 0; background: transparent; border: 0; border-radius: 0; }
#settingsModal .settings-list > article + article, #settingsModal .mcp-server-card + .mcp-server-card { border-top: 1px solid var(--settings-border); }
#settingsModal .settings-list > p { margin: 0; padding: 12px 14px; }
#settingsModal .settings-mcp-list { display: flex; flex-direction: column; gap: 12px; }
#settingsModal .settings-section-heading, .settings-row, .mcp-list-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
#settingsModal .settings-section-heading { margin: 20px 0 10px; }
#settingsModal .settings-section-heading:first-child, #settingsModal .settings-feedback[hidden] + .settings-section-heading { margin-top: 0; }
#settingsModal .settings-section-heading h4, #settingsModal .mcp-list-toolbar h4 { margin: 0; }
.settings-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.settings-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; color: var(--text-primary); font-size: var(--text-base); font-weight: 500; }
.settings-field:last-child { margin-bottom: 0; }
#settingsModal .settings-parameter-row { display: grid; grid-template-columns: 110px minmax(0, 1fr) auto; align-items: center; gap: 12px; }
#settingsModal .settings-parameter-row + .settings-parameter-row { margin-top: 12px; }
#settingsModal .settings-parameter-row > label { color: var(--text-primary); font-size: var(--text-base); font-weight: 500; }
#settingsModal .settings-agent-grid { display: grid; grid-template-columns: 110px minmax(0, 1fr); align-items: center; gap: 8px 12px; min-width: 0; margin: 12px 0 0; }
#settingsModal #agentGridLabel { color: var(--text-primary); font-size: var(--text-base); font-weight: 500; }
#settingsModal .settings-grid-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; }
#settingsModal .settings-grid-field { display: inline-flex; align-items: center; gap: 8px; }
#settingsModal .settings-grid-field label { font-size: var(--text-base); font-weight: 500; }
#settingsModal .settings-grid-field select { width: 5rem; cursor: pointer; }
#settingsModal .settings-agent-grid .settings-secondary { margin: 0; }
#settingsModal #settingsDefaultWindow { grid-column: 2 / 4; }
#settingsModal #settingsTab_appearance select { grid-column: 2 / 4; min-width: 0; }
#settingsModal #settingsTab_appearance .settings-parameter-row { grid-template-columns: 160px minmax(0, 1fr) auto; }
#settingsModal :is(#settingsAdminUserForm, #settingsProjectManagerForm) .settings-field { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 12px; align-items: center; }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) :is(button, input, select, textarea) { font-family: inherit; }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) :is(.normal-btn, .tp-reset-btn, .tp-small-btn, .tp-level-btn, .tp-tool-reset) {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px; flex: 0 0 auto;
    width: auto; min-height: 36px; margin: 0; padding: 7px 12px; border-radius: 6px;
    border: 1px solid var(--settings-border); background: var(--bg-surface); color: var(--text-primary);
    font-size: var(--text-base); font-weight: 600; line-height: var(--leading-normal); text-decoration: none; cursor: pointer;
    box-shadow: none; transition: background .12s, border-color .12s;
}
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) :is(.normal-btn, .tp-reset-btn, .tp-small-btn, .tp-level-btn, .tp-tool-reset):hover:not(:disabled) { background: var(--bg-tertiary); border-color: var(--text-secondary); }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) :is(.primary-btn, .success-btn) { color: var(--bg-base); background: var(--accent-blue); border-color: var(--accent-blue); }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) :is(.primary-btn, .success-btn):hover:not(:disabled) { color: var(--bg-base); background: color-mix(in srgb, var(--accent-blue) 85%, var(--text-primary)); border-color: var(--accent-blue); }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) .danger-btn { color: var(--accent-red); background: transparent; }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) .danger-btn:hover:not(:disabled) { background: color-mix(in srgb, var(--accent-red) 12%, var(--bg-primary)); border-color: var(--accent-red); }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) :is(button, input, select, textarea):disabled { opacity: .55; cursor: not-allowed; }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) :is(button, input, select, textarea, a[href], summary):focus-visible { outline: 2px solid var(--accent-blue); outline-offset: 3px; }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) :is(input:not([type=checkbox]), select, textarea) {
    box-sizing: border-box; min-width: 0; width: 100%; min-height: 36px; padding: 7px 10px;
    color: var(--text-primary); background: var(--bg-surface); border: 1px solid var(--settings-border);
    border-radius: 6px; font-size: var(--text-base); line-height: var(--leading-normal);
}
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) input::placeholder { color: var(--text-secondary); opacity: 1; }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) input[type=checkbox] { accent-color: var(--accent-blue); width: 17px; height: 17px; cursor: pointer; }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) .modal-close-btn { width: 32px; height: 32px; min-width: 32px; padding: 0; color: var(--text-secondary); border: 0; border-radius: 6px; background: transparent; font-size: 20px; line-height: 1; cursor: pointer; }
.settings-feedback { padding: 8px 11px; margin: 0 0 12px; border: 1px solid var(--settings-border); border-left: 3px solid var(--accent-blue); border-radius: 8px; background: var(--bg-surface); color: var(--text-primary); font-size: var(--text-base); overflow-wrap: anywhere; }
.settings-feedback[data-state=error], .mcp-editor-error { border-left-color: var(--accent-red); color: var(--accent-red); }
.settings-feedback[data-state=success] { border-left-color: var(--accent-blue); }
.settings-feedback:empty, .mcp-editor-error:empty { display: none; }
.settings-secondary, .settings-mcp-state, .mcp-list-caption, .mcp-server-meta, .mcp-server-description { color: var(--text-secondary); font-size: var(--text-base); line-height: var(--leading-normal); overflow-wrap: anywhere; }
.settings-mcp-state-error { color: var(--accent-red); }
.settings-card-title, .mcp-server-name { color: var(--text-primary); font-size: var(--text-base); font-weight: 650; overflow-wrap: anywhere; }
.settings-card-main, .mcp-server-main { flex: 1 1 180px; min-width: 0; }
.settings-provider-key { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.settings-provider-key .settings-field { flex: 1; margin: 0; }
#settingsModal .settings-provider-key .normal-btn { align-self: flex-end; min-height: 36px; }
.mcp-server-card { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.mcp-server-heading { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.mcp-server-type { color: var(--text-secondary); font-size: var(--text-base); font-weight: 600; text-transform: uppercase; border: 1px solid var(--settings-border); border-radius: 5px; padding: 2px 6px; }
.mcp-server-meta { margin-top: 4px; }
.mcp-server-description { margin-top: 7px; }
.mcp-server-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.mcp-server-buttons { display: flex; gap: 8px; }
.mcp-toggle { position: relative; display: inline-flex; align-items: center; gap: 8px; color: var(--text-secondary); font-size: var(--text-base); cursor: pointer; }
:is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) .mcp-toggle-input { position: absolute; opacity: 0; width: 38px; height: 22px; margin: 0; }
.mcp-toggle-track { position: relative; width: 38px; height: 22px; flex: 0 0 auto; border-radius: 999px; background: var(--settings-border); }
.mcp-toggle-track span { position: absolute; width: 16px; height: 16px; top: 3px; left: 3px; border-radius: 50%; background: var(--text-primary); transition: transform .12s; }
.mcp-toggle-input:checked + .mcp-toggle-track { background: var(--accent-blue); }
.mcp-toggle-input:checked + .mcp-toggle-track span { transform: translateX(16px); background: var(--bg-base); }
.mcp-toggle-input:focus-visible + .mcp-toggle-track { outline: 2px solid var(--accent-blue); outline-offset: 3px; }
.mcp-toggle-input:disabled ~ span { opacity: .55; cursor: wait; }
.mcp-empty-state { padding: 20px; border: 1px dashed var(--settings-border); border-radius: 10px; color: var(--text-secondary); text-align: center; }
:is(#mcpServerEditorOverlay, #settingsModelEditorOverlay) { z-index: 10020; }
.mcp-editor-dialog { width: min(660px, calc(100vw - 40px)); max-height: calc(100dvh - 48px); overflow: auto; background: var(--bg-elevated); border: 1px solid var(--settings-border); border-radius: 12px; box-shadow: var(--shadow-lg); }
.mcp-editor-header { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 20px; background: var(--bg-elevated); border-bottom: 1px solid var(--settings-border); }
.mcp-editor-title { color: var(--text-primary); font-size: var(--text-base); font-weight: 650; letter-spacing: var(--letter-spacing); }
.mcp-editor-subtitle, .mcp-editor-help { display: block; margin-top: 5px; color: var(--text-secondary); font-size: var(--text-base); font-weight: 400; line-height: var(--leading-normal); }
.mcp-editor-form { padding: 20px; }
.mcp-editor-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.mcp-editor-field { display: block; margin-bottom: 14px; }
.mcp-editor-label { display: block; color: var(--text-primary); font-size: var(--text-base); font-weight: 500; margin-bottom: 6px; }
.mcp-editor-enabled { display: flex; align-items: center; gap: 8px; min-height: 36px; font-size: var(--text-base); }
.mcp-editor-textarea { resize: vertical; font-family: var(--font-mono) !important; }
.mcp-editor-control[readonly] { opacity: 1; }
.mcp-editor-error { margin-bottom: 16px; font-size: var(--text-base); line-height: var(--leading-normal); overflow-wrap: anywhere; }
.mcp-editor-actions { position: sticky; bottom: -20px; display: flex; justify-content: flex-end; gap: 8px; padding: 12px 20px; margin: 6px -20px -20px; background: var(--bg-elevated); border-top: 1px solid var(--settings-border); }
#settingsModal .shortcut-row { padding: 8px 10px; gap: 12px; border-bottom: 1px solid var(--settings-border); }
#settingsModal .shortcut-row span { color: var(--text-secondary); font-size: var(--text-base); text-align: right; }
#settingsModal .shortcut-row kbd { flex: 0 0 auto; background: var(--bg-surface); border-color: var(--settings-border); }
#settingsModal .settings-about-release, #settingsModal .settings-account-row { display: flex; align-items: center; justify-content: space-between; gap: 16px 24px; flex-wrap: wrap; }
#settingsModal .settings-account-identity { flex: 1 1 220px; min-width: 0; }
#settingsModal .settings-account-row .settings-actions { margin: 0; justify-content: flex-start; }
#settingsModal .settings-version { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 20px; margin: 0; }
#settingsModal .settings-version dt { color: var(--text-secondary); }
#settingsModal .settings-version dd { margin: 0; text-align: left; overflow-wrap: anywhere; }
#settingsModal .settings-release-notes { margin-top: 12px; font-size: var(--text-base); color: var(--text-secondary); }
#settingsModal .settings-release-notes summary { width: fit-content; cursor: pointer; }
#settingsModal .settings-release-notes p { margin: 10px 0 0; white-space: pre-line; }
@media (max-width: 600px) {
    #settingsModal .settings-agent-grid { grid-template-columns: 1fr; }
    :is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) { padding: 8px; }
    #settingsModal .settings-modal-content { width: calc(100vw - 16px); max-height: calc(100dvh - 16px); border-radius: 10px; }
    #settingsModal .modal-header, #settingsModal .modal-footer { padding: 12px 14px; }
    #settingsModal .settings-tab-bar { padding: 0 8px; }
    #settingsModal .settings-tab { padding: 10px; }
    #settingsModal .modal-body { padding: 16px 14px; }
    #settingsModal .settings-parameter-row { grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
    #settingsModal .settings-parameter-row > label { grid-column: 1 / -1; }
    #settingsModal #settingsDefaultWindow { grid-column: 1 / -1; }
    #settingsModal #settingsTab_appearance .settings-parameter-row { grid-template-columns: minmax(0, 1fr); }
    #settingsModal #settingsTab_appearance select { grid-column: 1 / -1; }
    #settingsModal :is(#settingsAdminUserForm, #settingsProjectManagerForm) .settings-field { display: flex; gap: 6px; }
    :is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) :is(.normal-btn, input:not([type=checkbox]), select) { min-height: 40px; }
    .mcp-server-actions { width: 100%; flex-direction: row; align-items: center; justify-content: space-between; flex-wrap: wrap; }
    .mcp-editor-dialog { width: calc(100vw - 16px); max-height: calc(100dvh - 16px); }
    .mcp-editor-header, .mcp-editor-form { padding: 16px; }
    .mcp-editor-grid { grid-template-columns: 1fr; gap: 0; }
    .mcp-editor-actions { bottom: -16px; margin: 8px -16px -16px; padding: 12px 16px; }
}
@media (prefers-reduced-motion: reduce) {
    :is(#settingsModal, #mcpServerEditorOverlay, #settingsModelEditorOverlay) * { transition: none !important; }
}

#settingsModal .settings-user-role { flex: 1 1 160px; margin: 0; }
#settingsModal .settings-actions:has(.settings-user-role) { align-items: flex-end; }
#settingsModal .settings-password-editor { flex-direction: column; gap: 10px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--settings-border); }