/* MBCAST: mentor toplu mesaj paneli (public/mentor-messages.php, includes/mentors/mentor-broadcast.php) */
.mbc { margin-bottom: 16px; }
.mbc > summary { list-style: none; width: max-content; max-width: 100%; }
.mbc > summary::-webkit-details-marker { display: none; }
.mbc-toggle { cursor: pointer; }
.mbc[open] > .mbc-toggle { margin-bottom: 12px; }
.mbc-panel { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 24px; align-items: start; }
.mbc-title { margin: 0 0 4px; font-size: 20px; color: var(--th-deep, #083c5c); }
.mbc-desc { margin: 0 0 14px; color: var(--gray-600, #5b6475); font-size: 14.5px; line-height: 1.5; }
.mbc-label { display: block; margin-bottom: 6px; font-weight: 700; font-size: 14px; color: var(--th-deep, #083c5c); }
.mbc-form textarea { display: block; width: 100%; min-height: 120px; padding: 12px 14px; border: 1px solid var(--th-line, #d4ecf6); border-radius: 10px; font: inherit; font-size: 16px; line-height: 1.5; resize: vertical; background: #fff; }
.mbc-form textarea:focus { outline: none; border-color: var(--th-sky, #168dbd); box-shadow: 0 0 0 3px rgba(22,141,189,0.15); }
.mbc-counter { margin-top: 4px; text-align: end; font-size: 12.5px; color: var(--gray-500, #8a93a3); font-variant-numeric: tabular-nums; }
.mbc-counter.is-near { color: #b45309; font-weight: 700; }
.mbc-to { margin: 10px 0 0; padding: 0; border: 0; display: flex; flex-wrap: wrap; gap: 4px 18px; }
.mbc-to legend { width: 100%; }
.mbc-radio { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; cursor: pointer; font-size: 15px; }
.mbc-radio input, .mbc-students input { width: 20px; height: 20px; accent-color: var(--th-sky, #168dbd); flex-shrink: 0; }
.mbc-pick { margin-top: 6px; padding: 12px; border: 1px solid var(--th-line, #d4ecf6); border-radius: 12px; background: var(--th-pale, #f6fbfe); }
.mbc-search { flex: none; width: 100%; }
.mbc-pick-actions { display: flex; flex-wrap: wrap; gap: 4px 16px; margin: 6px 0; }
.mbc-link { min-height: 44px; padding: 0 2px; border: 0; background: none; color: var(--th-sky, #168dbd); font: inherit; font-size: 14px; font-weight: 700; cursor: pointer; }
.mbc-link:hover { text-decoration: underline; }
.mbc-students { list-style: none; margin: 0; padding: 0; max-height: 280px; overflow-y: auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(220px, 100%), 1fr)); gap: 4px 12px; }
.mbc-students label { display: flex; align-items: center; gap: 10px; min-height: 48px; padding: 2px 6px; border-radius: 10px; cursor: pointer; }
.mbc-students label:hover { background: rgba(22,141,189,0.08); }
.mbc-students .mt-avatar { width: 36px; height: 36px; font-size: 14px; }
.mbc-students span:last-child { min-width: 0; overflow-wrap: anywhere; }
.mbc-nomatch { margin: 8px 0 0; color: var(--gray-500, #8a93a3); font-size: 14px; }
.mbc-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; margin-top: 14px; }
.mbc-foot p { margin: 0; }
.mbc-count { font-weight: 700; color: var(--th-deep, #083c5c); }
.mbc-left { font-size: 13.5px; color: var(--gray-600, #5b6475); }
.mbc-send { margin-inline-start: auto; }
.mbc-send[disabled] { opacity: 0.55; cursor: not-allowed; }
.mbc-error, .mbc-ok { flex-basis: 100%; padding: 10px 12px; border-radius: 10px; font-size: 14px; }
.mbc-error { background: #fdecec; color: #a12626; }
.mbc-ok { background: #e8f7ee; color: #17663a; }
.mbc-error[hidden], .mbc-ok[hidden], .mbc-pick[hidden], .mbc-nomatch[hidden], .mbc-students li[hidden] { display: none; }
.mbc-history { padding-inline-start: 20px; border-inline-start: 1px solid var(--th-line, #d4ecf6); }
.mbc-history h3 { margin: 0 0 10px; font-size: 15px; color: var(--th-deep, #083c5c); }
.mbc-history ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.mbc-history li { padding-bottom: 10px; border-bottom: 1px solid var(--th-line, #d4ecf6); }
.mbc-history li:last-child { border-bottom: 0; padding-bottom: 0; }
.mbc-history li p { margin: 0 0 2px; font-size: 14px; line-height: 1.45; overflow-wrap: anywhere; }
.mbc-history small, .mbc-muted { color: var(--gray-500, #8a93a3); font-size: 13px; }

@media (max-width: 900px) {
    .mbc-panel { grid-template-columns: minmax(0, 1fr); gap: 18px; }
    .mbc-history { padding-inline-start: 0; padding-top: 16px; border-inline-start: 0; border-top: 1px solid var(--th-line, #d4ecf6); }
}
@media (max-width: 640px) {
    .mbc.is-in-thread { display: none; }
    .mbc > summary { width: 100%; }
    .mbc-send { width: 100%; margin-inline-start: 0; }
}
@media (hover: none) {
    .mbc-students label:hover { background: none; }
    .mbc-link:hover { text-decoration: none; }
}