#page-ai-settings { overflow-y: auto; }
.ai-settings-shell { width: 100%; max-width: 920px; min-width: 0; margin: 0 auto; padding-bottom: 12px; }
.ai-settings-card { padding: 18px 20px; margin-bottom: 10px; }
.ai-card-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.ai-card-heading > div { min-width: 0; }
.ai-card-heading .card-title { margin-bottom: 5px; color: var(--text); letter-spacing: 0; }
.ai-settings-description { margin: 0; }
.ai-settings-description, .ai-settings-footer, .ai-field-hint, .ai-action-note { color: var(--text-muted); font-size: 12px; line-height: 1.7; }
.ai-settings-footer { margin: 0; padding: 0 2px; }
.ai-save-state { flex: none; padding-top: 2px; color: var(--text-muted); font-size: 12px; white-space: nowrap; }
.ai-save-state[data-dirty="true"] { color: var(--warning); }
.ai-settings-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px 18px; align-items: start; }
.ai-settings-grid .form-group { min-width: 0; margin: 0; }
.ai-settings-grid .form-group > label { display: block; font-size: var(--font-ui); margin-bottom: 6px; color: var(--text); }
.ai-settings-grid .input { width: 100%; min-width: 0; font-size: 13px; background: var(--bg-card); }
.ai-settings-wide { grid-column: 1 / -1; }
.ai-field-hint { display: block; margin-top: 4px; overflow-wrap: anywhere; }
.ai-field-hint:empty { display: none; }
.ai-key-control { display: flex; align-items: stretch; gap: 6px; min-width: 0; }
.ai-key-control .input { flex: 1; min-width: 0; }
.ai-key-toggle { flex: none; min-width: 56px; font-size: 12px; }
.ai-connection-details { margin-top: 16px; border-top: 1px solid var(--border); padding-top: 10px; }
.ai-connection-details > summary { cursor: pointer; color: var(--text); font-size: 13px; line-height: 22px; padding: 2px 0; border-radius: 4px; }
.ai-connection-details > summary:hover { color: var(--accent); }
.ai-connection-details > summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.ai-connection-details > summary span { display: inline-block; padding-left: 7px; color: var(--text-muted); font-size: 12px; }
.ai-advanced-grid { margin-top: 12px; }
.ai-settings-grid .ai-optional-key > label { display: flex; margin-top: 26px; margin-bottom: 0; }
.ai-optional-key[hidden] { display: none; }
.ai-reasoning-row[hidden] { display: none; }
.ai-model-field { position: relative; }
.ai-model-control { display: flex; align-items: stretch; gap: 6px; min-width: 0; }
.ai-model-control > .input { flex: 1; min-width: 0; }
.ai-fetch-models-btn { flex: none; font-size: 12px; padding-left: 12px; padding-right: 12px; white-space: nowrap; }
.ai-model-picker { position: absolute; top: calc(100% + 4px); left: 0; right: 0; z-index: 30; display: flex; flex-direction: column; max-height: min(360px, 60vh); padding: 8px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 6px 20px rgba(0,0,0,.12); }
.ai-model-picker[hidden], .ai-model-status[hidden] { display: none; }
.ai-model-picker-heading { display: flex; gap: 6px; margin-bottom: 6px; flex-shrink: 0; }
.ai-model-picker-heading > .input { flex: 1; min-width: 0; }
.ai-model-refresh { flex: none; font-size: 12px; white-space: nowrap; }
.ai-model-list { max-height: 240px; min-height: 0; overflow-y: auto; overscroll-behavior: contain; scrollbar-gutter: stable; }
.ai-model-option { display: flex; flex-direction: column; gap: 2px; width: 100%; border: 0; padding: 7px 8px; text-align: left; color: var(--text); background: transparent; border-radius: 5px; cursor: pointer; font-family: inherit; }
.ai-model-option:hover, .ai-model-option[aria-selected="true"] { background: var(--accent-light); }
.ai-model-option[aria-selected="true"] .ai-model-option-name { color: var(--accent); font-weight: 500; }
.ai-model-option:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.ai-model-option-name { font-size: 12px; line-height: 1.5; overflow-wrap: anywhere; }
.ai-model-option-id { color: var(--text-muted); font-size: var(--font-note); line-height: 1.4; overflow-wrap: anywhere; }
.ai-model-empty { padding: 16px 8px; font-size: 12px; line-height: 1.6; color: var(--text-muted); }
.ai-model-list-note { border-top: 1px solid var(--border); padding: 7px 4px 0; margin-top: 6px; color: var(--text-muted); font-size: var(--font-note); line-height: 1.5; flex-shrink: 0; }
.ai-model-status { min-height: 18px; }
.ai-model-status[data-state="error"] { color: var(--danger); }
.ai-settings-actions { display: flex; align-items: center; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.ai-action-note { margin-left: 4px; }
.ai-test-result { margin-top: 12px; border: 1px solid var(--border); border-left-width: 3px; background: var(--bg-card); border-radius: 6px; padding: 10px 12px; font-size: 13px; line-height: 1.7; overflow-wrap: anywhere; white-space: pre-wrap; }
.ai-test-result[hidden] { display: none; }
.ai-test-result[data-state="success"] { border-left-color: var(--success); }
.ai-test-result[data-state="error"] { color: var(--danger); border-left-color: var(--danger); }
.ai-feature-row { display: flex; align-items: center; gap: 10px; margin-top: 15px; padding-top: 12px; border-top: 1px solid var(--border); min-width: 0; flex-wrap: wrap; }
.ai-feature-row .toggle-label { font-size: 12px; margin: 0; }
.ai-feature-summary { color: var(--text-muted); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; max-width: 280px; }
.ai-feature-row-compact { margin-top: 7px; padding-top: 0; border: 0; }
.ai-feature-row-compact .ai-feature-summary { flex: 1; }
@media (min-width: 1100px) {
  .ai-advanced-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 800px) {
  .ai-settings-card { padding: 16px; }
  .ai-settings-grid { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .ai-settings-grid .ai-optional-key > label { margin-top: 0; }
  .ai-card-heading { margin-bottom: 14px; }
  .ai-action-note { flex-basis: 100%; margin-left: 0; }
}