.study-course-directory { border: 0; border-radius: 0; padding: 8px 2px; background: transparent; gap: 6px; }
.study-course-directory .section-title { padding: 0 4px 4px; font-size: 14px; }
.study-course-directory .section-title button { min-height: 30px; padding: 4px 9px; font-size: 12px; border-radius: 3px; }
.study-course-directory .course-list { gap: 2px; }
.study-course-directory .course-item { border: 0; border-radius: 3px; padding: 7px 9px; gap: 1px; background: transparent; box-shadow: none; }
.study-course-directory .course-item.active { background: var(--sb-tint, #edf6f3); }
.study-course-directory .course-item b, .course-folder-name b { font-size: 13px; line-height: 1.6; }
.study-course-directory .course-item small { font-size: 11px; line-height: 1.5; }
.study-course-directory .course-item:hover { background: var(--sb-tint, #edf6f3); }
.study-course-directory button:focus-visible { outline: 2px solid var(--green); outline-offset: -2px; }
.course-folder { border: 0; border-radius: 0; min-width: 0; }
.course-folder-heading { display: flex; align-items: center; gap: 2px; padding: 2px 0; }
.course-folder-heading > button { border: 0; background: transparent; padding: 5px 4px; min-width: 28px; min-height: 32px; border-radius: 3px; box-shadow: none; }
.course-folder-heading .course-folder-name { display: grid; flex: 1; min-width: 0; gap: 1px; text-align: left; overflow-wrap: anywhere; }
.course-folder-name small { color: var(--muted); font-size: 11px; }
.course-folder-heading button:hover, .course-chat-row button:hover { background: var(--sb-tint, #edf6f3); }
.course-chat-list { display: grid; gap: 1px; padding: 1px 0 5px 37px; }
.course-chat-row { display: flex; gap: 3px; align-items: center; border-left: 2px solid transparent; padding-left: 6px; }
.course-chat-row.active { border-color: var(--green); background: var(--sb-tint, #edf6f3); border-radius: 0 3px 3px 0; }
.course-chat-row button { border: 0; background: transparent; padding: 5px 4px; min-height: 32px; font-size: 12px; border-radius: 3px; box-shadow: none; }
.course-chat-row .course-chat-title { flex: 1; text-align: left; min-width: 0; overflow-wrap: anywhere; }
.course-chat-rename { display: grid; gap: 6px; padding: 6px 0; }
.course-chat-rename input { width: 100%; min-width: 0; font-size: 13px; }
.course-chat-rename > div { display: flex; gap: 6px; }
.course-chat-rename button { font-size: 12px; padding: 6px 9px; }
.course-chat-heading { display: grid; gap: 5px; }
.course-chat-heading > small { color: var(--muted); font-size: 12px; }
.course-chat-heading h1 { font-size: 21px; }

.course-chat-row button[data-action="delete-conversation"] { flex-shrink: 0; min-width: 28px; }
.course-chat-row button[data-action="delete-conversation"]:hover { color: #a23434; background: #fceeee; }

@media (pointer: coarse) {
  .course-folder-heading > button, .course-chat-row button { min-height: 36px; }
}