/*
 * Talking Time MentorManagementCard — four-tab Coordinator card.
 *
 *   1. Mentor Management  (Req 42.1-42.4, 43.3)
 *   2. Mentor Timetables  (Req 42.5)
 *   3. Meetings           (Req 42.6, 42.7)
 *   4. Mentor Development (Req 42.8)
 *
 * Scoped under .tt-area (Req 5.5).
 */

.tt-area .tt-mentor-mgmt {
    background: var(--tt-surface);
    border-radius: var(--tt-radius-lg);
    box-shadow: var(--tt-shadow-sm);
    padding: 22px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tt-area .tt-mentor-mgmt__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.tt-area .tt-mentor-mgmt__title {
    margin: 0;
    font-size: var(--tt-font-size-xl);
    color: var(--tt-text);
    font-weight: 600;
}

.tt-area .tt-mentor-mgmt__subtitle {
    margin: 4px 0 0 0;
    font-size: var(--tt-font-size-sm);
    color: var(--tt-text-muted);
}

.tt-area .tt-mentor-mgmt__tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    border-bottom: 1px solid var(--tt-surface-raised);
    padding-bottom: 0;
}

.tt-area .tt-mentor-mgmt__tab {
    appearance: none;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--tt-text-muted);
    font-family: var(--tt-font-base);
    font-size: var(--tt-font-size-sm);
    font-weight: 600;
    padding: 10px 14px;
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.tt-area .tt-mentor-mgmt__tab:hover {
    color: var(--tt-sunshine-orange);
}

.tt-area .tt-mentor-mgmt__tab.is-active {
    color: var(--tt-sunshine-orange);
    border-bottom-color: var(--tt-sunshine-orange);
}

.tt-area .tt-mentor-mgmt__panel {
    padding-top: 6px;
}

.tt-area .tt-mentor-mgmt__status,
.tt-area .tt-mentor-mgmt__empty {
    margin: 0;
    color: var(--tt-text-muted);
    font-size: var(--tt-font-size-sm);
    font-style: italic;
}

.tt-area .tt-mentor-mgmt__error {
    margin: 0 0 10px 0;
    padding: 8px 12px;
    background: rgba(194, 74, 74, 0.1);
    color: var(--tt-danger);
    border-radius: var(--tt-radius-sm);
    font-size: var(--tt-font-size-sm);
}

.tt-area .tt-mentor-mgmt__success {
    margin: 0 0 10px 0;
    padding: 8px 12px;
    background: rgba(58, 154, 107, 0.12);
    color: var(--tt-success);
    border-radius: var(--tt-radius-sm);
    font-size: var(--tt-font-size-sm);
}

/* ---- Mentor Management tab ---- */

.tt-area .tt-mentor-mgmt__toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.tt-area .tt-mentor-mgmt__btn {
    appearance: none;
    background: linear-gradient(135deg, var(--tt-sunshine-orange) 0%, var(--tt-sunshine-orange) 100%);
    border: none;
    color: var(--tt-text-inverse);
    font-family: var(--tt-font-base);
    font-size: var(--tt-font-size-sm);
    font-weight: 600;
    padding: 8px 14px;
    border-radius: var(--tt-radius-sm);
    cursor: pointer;
}

.tt-area .tt-mentor-mgmt__btn:hover,
.tt-area .tt-mentor-mgmt__btn:focus-visible {
    filter: brightness(1.05);
    outline: none;
}

.tt-area .tt-mentor-mgmt__btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.tt-area .tt-mentor-mgmt__btn--ghost {
    background: transparent;
    color: var(--tt-sunshine-orange);
    border: 1px solid var(--tt-sunshine-orange);
}

.tt-area .tt-mentor-mgmt__btn--danger {
    background: var(--tt-danger);
}

.tt-area .tt-mentor-mgmt__form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px 16px;
    background: var(--tt-surface-raised);
    padding: 14px 16px;
    border-radius: var(--tt-radius-md);
    margin-bottom: 14px;
}

.tt-area .tt-mentor-mgmt__field {
    display: flex;
    flex-direction: column;
    font-size: var(--tt-font-size-sm);
    color: var(--tt-text);
}

.tt-area .tt-mentor-mgmt__field > span {
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 12px;
    color: var(--tt-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.tt-area .tt-mentor-mgmt__field input,
.tt-area .tt-mentor-mgmt__field select,
.tt-area .tt-mentor-mgmt__field textarea {
    padding: 7px 10px;
    border: 1px solid var(--tt-surface-raised);
    border-radius: var(--tt-radius-sm);
    font-family: var(--tt-font-base);
    font-size: var(--tt-font-size-sm);
    color: var(--tt-text);
    background: var(--tt-surface);
}

.tt-area .tt-mentor-mgmt__field input:focus,
.tt-area .tt-mentor-mgmt__field select:focus,
.tt-area .tt-mentor-mgmt__field textarea:focus {
    outline: 2px solid var(--tt-sunshine-orange);
    outline-offset: 1px;
    border-color: var(--tt-sunshine-orange);
}

.tt-area .tt-mentor-mgmt__form-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.tt-area .tt-mentor-mgmt__table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--tt-font-size-sm);
    color: var(--tt-text);
}

.tt-area .tt-mentor-mgmt__table th,
.tt-area .tt-mentor-mgmt__table td {
    padding: 9px 10px;
    text-align: left;
    border-bottom: 1px solid var(--tt-surface-raised);
    vertical-align: top;
}

.tt-area .tt-mentor-mgmt__table th {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--tt-text-muted);
    background: var(--tt-surface-raised);
}

.tt-area .tt-mentor-mgmt__table tr:hover {
    background: var(--tt-surface-subtle);
}

.tt-area .tt-mentor-mgmt__over-alloc {
    display: inline-block;
    background: rgba(194, 74, 74, 0.12);
    color: var(--tt-danger);
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tt-area .tt-mentor-mgmt__ok-badge {
    display: inline-block;
    background: rgba(58, 154, 107, 0.14);
    color: var(--tt-success);
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ---- Mentor Timetables tab ---- */

.tt-area .tt-mentor-mgmt__selector {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.tt-area .tt-mentor-mgmt__selector select {
    min-width: 220px;
    padding: 7px 10px;
    border: 1px solid var(--tt-surface-raised);
    border-radius: var(--tt-radius-sm);
    font-family: var(--tt-font-base);
    font-size: var(--tt-font-size-sm);
    color: var(--tt-text);
    background: var(--tt-surface);
}

.tt-area .tt-mentor-mgmt__timetable-weeks {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tt-area .tt-mentor-mgmt__week {
    background: var(--tt-surface-raised);
    border-radius: var(--tt-radius-md);
    padding: 12px 14px;
}

.tt-area .tt-mentor-mgmt__week-title {
    margin: 0 0 8px 0;
    font-size: var(--tt-font-size-md);
    color: var(--tt-sunshine-orange);
    font-weight: 600;
}

.tt-area .tt-mentor-mgmt__week-meta {
    font-size: 12px;
    color: var(--tt-text-muted);
    margin-left: 8px;
    font-weight: 500;
}

.tt-area .tt-mentor-mgmt__week-rows {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tt-area .tt-mentor-mgmt__week-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 8px;
    background: var(--tt-surface);
    border-radius: var(--tt-radius-sm);
    font-size: var(--tt-font-size-sm);
    color: var(--tt-text);
}

.tt-area .tt-mentor-mgmt__week-swatch {
    display: inline-block;
    width: 10px;
    height: 18px;
    border-radius: 2px;
    flex-shrink: 0;
}

.tt-area .tt-mentor-mgmt__week-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.tt-area .tt-mentor-mgmt__week-setting {
    font-weight: 600;
}

.tt-area .tt-mentor-mgmt__week-activity {
    font-size: 12px;
    color: var(--tt-text-muted);
}

.tt-area .tt-mentor-mgmt__week-dates {
    font-size: 12px;
    color: var(--tt-text-muted);
}

/* ---- Meetings tab ---- */

.tt-area .tt-mentor-mgmt__meetings {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tt-area .tt-mentor-mgmt__calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
    background: var(--tt-surface-raised);
    padding: 8px;
    border-radius: var(--tt-radius-md);
}

.tt-area .tt-mentor-mgmt__cal-head {
    font-size: 11px;
    font-weight: 700;
    color: var(--tt-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px;
    text-align: center;
}

.tt-area .tt-mentor-mgmt__cal-day {
    background: var(--tt-surface);
    border-radius: 4px;
    min-height: 58px;
    padding: 4px 6px;
    font-size: 12px;
    color: var(--tt-text);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tt-area .tt-mentor-mgmt__cal-day--other {
    opacity: 0.45;
}

.tt-area .tt-mentor-mgmt__cal-day--today {
    outline: 2px solid var(--tt-sunshine-orange);
    outline-offset: -2px;
}

.tt-area .tt-mentor-mgmt__cal-day-num {
    font-weight: 700;
    font-size: 13px;
    color: var(--tt-sunshine-orange);
}

.tt-area .tt-mentor-mgmt__cal-meeting {
    appearance: none;
    border: none;
    background: var(--tt-primary-soft);
    color: var(--tt-text);
    border-left: 3px solid var(--tt-sunshine-orange);
    border-radius: 3px;
    padding: 2px 4px;
    font-size: 11px;
    text-align: left;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
    font-family: var(--tt-font-base);
}

.tt-area .tt-mentor-mgmt__cal-meeting:hover {
    background: var(--tt-sunshine-orange);
    color: var(--tt-text-inverse);
}

.tt-area .tt-mentor-mgmt__cal-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 4px;
}

.tt-area .tt-mentor-mgmt__cal-nav-title {
    font-weight: 700;
    font-size: var(--tt-font-size-md);
    color: var(--tt-sunshine-orange);
}

.tt-area .tt-mentor-mgmt__meeting-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tt-area .tt-mentor-mgmt__meeting {
    background: var(--tt-surface-raised);
    border-radius: var(--tt-radius-md);
    padding: 10px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tt-area .tt-mentor-mgmt__meeting-title {
    margin: 0;
    font-size: var(--tt-font-size-md);
    font-weight: 600;
    color: var(--tt-sunshine-orange);
}

.tt-area .tt-mentor-mgmt__meeting-meta {
    font-size: 12px;
    color: var(--tt-text-muted);
}

.tt-area .tt-mentor-mgmt__meeting-agenda {
    font-size: var(--tt-font-size-sm);
    color: var(--tt-text);
    margin: 4px 0 0 0;
    line-height: 1.45;
}

.tt-area .tt-mentor-mgmt__meeting-link {
    font-size: 12px;
    color: var(--tt-sunshine-orange);
    text-decoration: underline;
    word-break: break-all;
}

.tt-area .tt-mentor-mgmt__meeting-actions {
    display: flex;
    gap: 8px;
    margin-top: 6px;
}

/* ---- Mentor Development tab ---- */

.tt-area .tt-mentor-mgmt__cert-status {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 10px;
    border-radius: 999px;
}

.tt-area .tt-mentor-mgmt__cert-status--current {
    background: rgba(58, 154, 107, 0.14);
    color: var(--tt-success);
}

.tt-area .tt-mentor-mgmt__cert-status--expiring {
    background: rgba(212, 138, 46, 0.15);
    color: var(--tt-warning);
}

.tt-area .tt-mentor-mgmt__cert-status--expired {
    background: rgba(194, 74, 74, 0.14);
    color: var(--tt-danger);
}

.tt-area .tt-mentor-mgmt__cert-status--unknown {
    background: var(--tt-surface-raised);
    color: var(--tt-text-muted);
}

.tt-area .tt-mentor-mgmt__dev-group {
    margin-bottom: 14px;
}

.tt-area .tt-mentor-mgmt__dev-group-title {
    margin: 0 0 6px 0;
    font-size: var(--tt-font-size-md);
    font-weight: 600;
    color: var(--tt-text);
}

.tt-area .tt-mentor-mgmt__dev-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tt-area .tt-mentor-mgmt__dev-row {
    background: var(--tt-surface-raised);
    border-radius: var(--tt-radius-sm);
    padding: 8px 12px;
    font-size: var(--tt-font-size-sm);
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.tt-area .tt-mentor-mgmt__dev-row-kind {
    font-weight: 600;
    color: var(--tt-sunshine-orange);
}

.tt-area .tt-mentor-mgmt__dev-row-meta {
    color: var(--tt-text-muted);
    font-size: 12px;
}

/* ---- Timetable Grid (Tasks 5.1-5.5) ---- */

/* 5.1 — Grid container with horizontal scroll */
.tt-area .tt-timetable-grid-container {
    overflow-x: auto;
    margin: 12px 0;
    border: 1px solid var(--tt-surface-raised);
    border-radius: var(--tt-radius-md);
}

.tt-area .tt-timetable-grid {
    border-collapse: collapse;
    font-size: 12px;
    min-width: 900px;
    width: 100%;
    color: var(--tt-text);
}

.tt-area .tt-timetable-grid th {
    position: sticky;
    top: 0;
    z-index: 2;
    background: var(--tt-surface-raised);
    padding: 8px 6px;
    text-align: center;
    font-size: 11px;
    font-weight: 600;
    color: var(--tt-text-muted);
    border-bottom: 2px solid var(--tt-surface-raised);
    border-right: 1px solid rgba(0, 0, 0, 0.06);
    white-space: nowrap;
}

.tt-area .tt-timetable-grid td {
    padding: 4px 5px;
    text-align: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    border-right: 1px solid rgba(0, 0, 0, 0.06);
    vertical-align: middle;
    min-width: 52px;
}

.tt-area .tt-timetable-grid .tt-row-label {
    position: sticky;
    left: 0;
    z-index: 3;
    background: var(--tt-surface);
    text-align: left;
    padding: 5px 10px;
    white-space: nowrap;
    font-size: 11px;
    min-width: 140px;
    max-width: 180px;
    border-right: 2px solid var(--tt-surface-raised);
    box-shadow: 2px 0 4px rgba(0,0,0,0.05);
}

.tt-area .tt-row-label__abbr {
    display: inline-block;
    font-weight: 700;
    color: var(--tt-sunshine-orange);
    margin-right: 4px;
    min-width: 20px;
}

.tt-area .tt-row-label__type {
    color: var(--tt-text-muted);
    font-weight: 500;
}

.tt-area .tt-row-label__slot {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    color: var(--tt-sunshine-orange);
    background: rgba(127, 179, 213, 0.15);
    padding: 1px 4px;
    border-radius: 3px;
    margin-left: 4px;
}

/* 5.3 — Current week column highlight */
.tt-area .tt-timetable-grid .tt-current-week {
    background: rgba(232, 184, 75, 0.15);
}

/* 5.3b — Selected week column highlight (pastel teal) */
.tt-area .tt-timetable-grid .tt-selected-week {
    background: rgba(143, 188, 176, 0.18);
}

/* 5.2 — Buddy group section styles */
.tt-area .tt-buddy-section td {
    transition: background-color 0.1s ease;
}

.tt-area .tt-buddy-header td {
    background: var(--tt-surface-raised);
    padding: 8px 10px;
    font-size: 12px;
    font-weight: 700;
    color: var(--tt-sunshine-orange);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

/* Element section header (e.g. "Story Conversations") */
.tt-area .tt-element-header td {
    background: var(--tt-surface-raised);
    padding: 10px 10px 6px;
    font-size: 13px;
    font-weight: 700;
    color: var(--tt-sunshine-orange);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    border-top: 2px solid rgba(0, 0, 0, 0.06);
}

/* Activity type sub-header (e.g. "Twilight") */
.tt-area .tt-activity-header td {
    background: #f9fafb;
    padding: 5px 10px 4px 20px;
    font-size: 11px;
    font-weight: 600;
    color: #6b7280;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

/* 5.2 — Session marker pill */
.tt-area .tt-session-marker {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 700;
    color: var(--tt-text);
    white-space: nowrap;
    line-height: 1.4;
}

/* 5.4 — Delivered session marker */
.tt-area .tt-session-marker--delivered {
    border: 1.5px solid var(--tt-success);
}

.tt-area .tt-session-marker__check {
    color: var(--tt-success);
    font-size: 10px;
    font-weight: 700;
}

/* ---- Settings Key Panel (Task 4.5 / 5.2) ---- */

.tt-area .tt-settings-key {
    margin-top: 14px;
    padding: 14px 16px;
    background: var(--tt-surface-raised);
    border-radius: var(--tt-radius-md);
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.tt-area .tt-settings-key__group {
    padding: 8px 12px;
    margin-bottom: 10px;
    border-radius: var(--tt-radius-sm);
}

.tt-area .tt-settings-key__group-name {
    margin: 0 0 6px 0;
    font-size: 12px;
    font-weight: 700;
    color: var(--tt-sunshine-orange);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.tt-area .tt-settings-key__item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    font-size: 12px;
    color: var(--tt-text);
    flex-wrap: wrap;
}

.tt-area .tt-settings-key__abbr {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 22px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 700;
    color: var(--tt-text);
    flex-shrink: 0;
}

.tt-area .tt-settings-key__details {
    flex: 1;
    line-height: 1.5;
}

.tt-area .tt-settings-key__details strong {
    color: var(--tt-sunshine-orange);
}

.tt-area .tt-settings-key__details span {
    color: var(--tt-text-muted);
}

/* 5.5 — Responsive breakpoint message */
.tt-area .tt-responsive-msg {
    display: none;
    padding: 16px;
    background: rgba(232, 184, 75, 0.12);
    border: 1px solid rgba(232, 184, 75, 0.3);
    border-radius: var(--tt-radius-md);
    text-align: center;
    color: var(--tt-text);
    font-size: var(--tt-font-size-sm);
}

.tt-area .tt-responsive-msg p {
    margin: 0;
}

@media (max-width: 1023px) {
    .tt-area .tt-timetable-grid-container {
        display: none;
    }
    .tt-area .tt-responsive-msg {
        display: block;
    }
}

/* ---- Week Detail Panel ---- */
.tt-area .tt-week-detail {
    margin-top: 14px;
    padding: 14px 16px;
    background: var(--tt-surface);
    border: 2px solid var(--tt-sunshine-orange);
    border-radius: var(--tt-radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.tt-area .tt-week-detail table tr:hover {
    background: var(--tt-surface-raised);
}

/* ---- Buddy Group Filter Pills ---- */
.tt-area .tt-group-filter {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    margin: 10px 0;
    padding: 8px 12px;
    background: var(--tt-surface);
    border: 1px solid var(--tt-surface-raised);
    border-radius: var(--tt-radius-md);
}

.tt-area .tt-group-filter__label {
    font-size: 11px;
    font-weight: 600;
    color: var(--tt-text-muted);
    margin-right: 4px;
}

.tt-area .tt-group-filter__pill {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 500;
    border: 1px solid #d1d5db;
    border-radius: 12px;
    background: #fff;
    color: var(--tt-text);
    cursor: pointer;
    transition: all 0.15s ease;
}

.tt-area .tt-group-filter__pill:hover {
    border-color: var(--tt-sunshine-orange);
    background: rgba(232, 114, 106, 0.06);
}

.tt-area .tt-group-filter__pill--active {
    border-color: var(--tt-sunshine-orange);
    background: rgba(232, 114, 106, 0.12);
    font-weight: 600;
}