/* Calendar sizes and colours use the same tokens in every active theme. */
.calendar-section {
  --cal-gap: 18px;
  --cal-cell-height: 54px;
  --cal-day-size: 26px;
  --cal-event-row-height: 40px;
  --cal-visible-events: 4;
  --cal-dot-gap: 1px;
  margin-block-start: 28px;
  min-width: 0;
}
.calendar-section:first-child { margin-block-start: 0; }
.calendar-heading p { margin: 6px 0 0; font-size: .86rem; }
.calendar-heading-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.calendar-board { display: grid; grid-template-columns: minmax(0,1fr); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.calendar-month-panel { padding: var(--cal-gap); min-width: 0; }
.calendar-toolbar, .calendar-month-nav, .calendar-filter-row { display: flex; align-items: center; gap: 8px; }
.calendar-toolbar, .calendar-filter-row { justify-content: space-between; }
.calendar-month-nav h3 { font-size: 1.05rem; min-width: 108px; text-align: center; margin: 0; }
.calendar-today { padding: 8px 15px; }
.calendar-filter-row { margin: 8px 0 12px; }
.calendar-filter-row select { width: auto; max-width: 65%; font-size: .82rem; min-height: 44px; background: var(--surface-soft); }
.calendar-weekdays, .calendar-week { display: grid; grid-template-columns: repeat(7,minmax(0,1fr)); gap: 4px; }
.calendar-weekdays { text-align: center; margin-bottom: 6px; color: var(--muted); font-size: .75rem; }
.calendar-weekdays span:last-child { color: var(--danger); }
.calendar-week { margin-top: 4px; }
/* A fixed cell height and reserved border prevent dots or highlights changing the grid. */
.calendar-day { position: relative; box-sizing: border-box; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; width: 100%; min-width: 0; height: var(--cal-cell-height); min-height: var(--cal-cell-height); padding: 3px 2px; border: 2px solid transparent; border-radius: 9px; background: var(--surface-soft); color: var(--text); text-align: center; cursor: pointer; font: inherit; overflow: hidden; }
.calendar-day:hover { border-color: var(--accent); }
.calendar-day:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; z-index: 1; }
.calendar-day.outside { background: transparent; color: var(--muted); }
.calendar-day.has-teacher-event { border-color: var(--accent); background: var(--accent-soft); }
.calendar-day.selected { border-color: transparent; background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.calendar-day.selected.has-teacher-event { border-color: var(--accent); }
.calendar-day-number { flex: 0 0 var(--cal-day-size); display: grid; place-items: center; width: var(--cal-day-size); height: var(--cal-day-size); border-radius: 8px; font-size: .82rem; font-weight: 700; }
.calendar-day.today .calendar-day-number { background: var(--accent); color: var(--accent-fg); }
.calendar-day.friday:not(.today) .calendar-day-number { color: var(--danger); background: var(--danger-bg); }
.calendar-day.selected:not(.today) .calendar-day-number { box-shadow: inset 0 -2px 0 var(--accent); }
.calendar-cell-dots { --cal-dot-size: 7px; display: flex; flex: 0 0 8px; align-items: center; justify-content: center; gap: var(--cal-dot-gap); width: 100%; max-width: 42px; min-width: 0; height: 8px; overflow: hidden; }
.calendar-cell-dots[data-dot-count="3"], .calendar-cell-dots[data-dot-count="4"] { --cal-dot-size: 5px; }
.calendar-cell-dots[data-dot-count="5"], .calendar-cell-dots[data-dot-count="6"] { --cal-dot-size: 3.5px; }
.calendar-dot { display: inline-block; width: 7px; height: 7px; flex: 0 0 7px; border-radius: 50%; background: var(--accent); }
.calendar-dot.scope-global { background: var(--success); }
.calendar-dot.scope-personal { background: var(--warning); }
.calendar-cell-dots .calendar-dot { flex: 0 1 var(--cal-dot-size); width: var(--cal-dot-size); min-width: 0; height: auto; aspect-ratio: 1; }
.calendar-legend { display: flex; flex-wrap: wrap; gap: 10px 12px; margin-top: 12px; font-size: .7rem; color: var(--muted); }
.calendar-legend span { display: flex; align-items: center; gap: 5px; }
.calendar-today-key::before, .calendar-teacher-key::before { content: ''; box-sizing: border-box; width: 11px; height: 11px; border-radius: 3px; }
.calendar-today-key::before { background: var(--accent); }
.calendar-teacher-key::before { border: 2px solid var(--accent); background: var(--accent-soft); }
.calendar-agenda { background: var(--surface-soft); border-block-start: 1px solid var(--border); padding: var(--cal-gap); min-width: 0; }
.calendar-agenda-head h3 { font-size: .95rem; margin: 5px 0 12px; line-height: 1.8; }
/* Four collapsed rows, one column at every width. Expanded text shares this bounded scroll area. */
.calendar-agenda [data-calendar-agenda] { display: block; max-height: calc(var(--cal-visible-events) * var(--cal-event-row-height)); overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain; scrollbar-gutter: stable; padding: 0; border-radius: var(--radius-sm); }
[data-calendar-agenda]:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.calendar-agenda-empty { padding: 16px 0; color: var(--muted); font-size: .8rem; line-height: 1.9; }
.calendar-agenda-empty strong { display: block; color: var(--text); font-size: .88rem; margin-bottom: 5px; }
.calendar-agenda-empty p { margin: 0; }
.calendar-event { margin: 0; min-width: 0; background: var(--surface); color: var(--text); }
.calendar-event-summary { box-sizing: border-box; display: grid; grid-template-columns: 20px minmax(0,1fr) max-content; align-items: center; gap: 8px; width: 100%; height: var(--cal-event-row-height); padding: 0 8px; border-block-end: 1px solid var(--border); list-style: none; cursor: pointer; }
.calendar-event-summary::-webkit-details-marker { display: none; }
.calendar-event-summary::marker { content: ''; }
.calendar-event-summary:hover, .calendar-event[open] > summary { background: var(--accent-soft); color: var(--accent-text); }
.calendar-event-summary:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; }
.calendar-event-toggle { position: relative; box-sizing: border-box; width: 18px; height: 18px; border: 1px solid currentColor; border-radius: 4px; color: var(--accent-text); }
.calendar-event-toggle::before, .calendar-event-toggle::after { content: ''; position: absolute; inset: 7px 3px; background: currentColor; border-radius: 1px; }
.calendar-event-toggle::after { transform: rotate(90deg); }
.calendar-event[open] > summary .calendar-event-toggle::after { display: none; }
.calendar-event-title { display: block; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; font-weight: 600; line-height: 1.7; }
.calendar-event-time { white-space: nowrap; font-size: 10px; font-variant-numeric: tabular-nums; color: var(--muted); }
.calendar-event-body { padding: 10px 12px 12px; border-block-end: 1px solid var(--border); overflow-wrap: anywhere; font-size: 12px; }
.calendar-event-full-title { margin: 0 0 6px; color: var(--text); font-weight: 700; line-height: 1.9; }
.calendar-event-meta { display: block; font-size: 11px; color: var(--muted); margin: 3px 0; line-height: 1.9; }
.calendar-teacher-label { display: inline-block; color: var(--accent-text); font-size: 11px; margin-block-start: 3px; }
.calendar-event-description { white-space: pre-wrap; margin: 8px 0 0; line-height: 1.9; }
.calendar-event-manage { display: inline-flex; align-items: center; min-height: 40px; margin-block-start: 6px; color: var(--accent-text); font-size: 11px; text-underline-offset: 3px; }
.calendar-kind { display: inline-flex; align-items: center; gap: 6px; font-size: .72rem; color: var(--accent-text); background: var(--accent-soft); padding: 3px 8px; border-radius: 6px; }
.calendar-add-day { display: flex; gap: 6px; align-items: center; justify-content: center; width: 100%; min-height: 44px; border: 1px dashed var(--border); background: transparent; border-radius: 12px; color: var(--accent-text); font: inherit; font-size: .8rem; cursor: pointer; margin-top: 12px; }
.calendar-add-day:hover { border-color: var(--accent); }
.calendar-status { display: flex; align-items: center; gap: 8px; min-height: 34px; margin-top: 6px; font-size: .8rem; color: var(--muted); }
.calendar-status .text-link { background: none; border: 0; font: inherit; min-height: 44px; cursor: pointer; }
.calendar-loading { padding: 35px 8px; text-align: center; }
.calendar-grid-wrap[aria-busy=true] { opacity: .7; }
.calendar-modal .field label .muted { color: var(--muted); }
@media(min-width:1001px) {
  .calendar-section { --cal-cell-height: 48px; --cal-day-size: 24px; max-width: 960px; }
  .calendar-heading { margin-block-end: 16px; align-items: center; }
  .calendar-heading h2 { font-size: 1.3rem; margin-block: 4px; }
  .calendar-heading p { font-size: .78rem; margin-top: 4px; }
  .calendar-heading .eyebrow { font-size: .68rem; }
  .calendar-heading-actions .button { min-height: 44px; padding: 9px 14px; }
  .calendar-board { grid-template-columns: minmax(320px,.95fr) minmax(240px,1fr); }
  .calendar-agenda { border-block-start: 0; border-inline-start: 1px solid var(--border); }
  .calendar-day { gap: 2px; }
}
@media(max-width:600px) {
  .calendar-section { --cal-gap: 14px; --cal-cell-height: 56px; --cal-day-size: 25px; --cal-event-row-height: 44px; }
  .calendar-heading { align-items: flex-start; gap: 14px; flex-direction: column; }
  .calendar-heading h2 { font-size: 1.3rem; }
  .calendar-heading-actions { width: 100%; }
  .calendar-heading-actions .button { flex: 1; }
  .calendar-heading p { font-size: .78rem; line-height: 1.8; }
  .calendar-month-nav h3 { min-width: 100px; font-size: 1rem; }
  .calendar-toolbar, .calendar-month-nav { gap: 0; }
  .calendar-today { padding: 6px 11px; font-size: .78rem; }
  .calendar-week, .calendar-weekdays { gap: 3px; }
  .calendar-legend { font-size: .66rem; }
  .calendar-event-summary { gap: 6px; padding-inline: 6px; }
  .calendar-agenda-empty { padding-block: 12px; }
}
@media(pointer:coarse) { .calendar-section { --cal-event-row-height: 44px; } .calendar-event-manage { min-height: 44px; } }
@media(forced-colors:active) { .calendar-day.has-teacher-event { border: 2px solid Highlight; } .calendar-day.selected { outline: 2px solid Highlight; } .calendar-dot { background: CanvasText; } }

.calendar-modal{width:min(640px,calc(100% - 32px));max-height:calc(100dvh - 32px);padding:32px;overscroll-behavior:contain}.calendar-dialog-head{padding-inline-end:30px;margin-bottom:24px}.calendar-dialog-head h2{font-size:1.4rem;margin:8px 0;overflow-wrap:anywhere}.calendar-dialog-head p{font-size:.84rem;line-height:1.9}.calendar-modal .field{margin-block:16px}.calendar-date-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:16px}.calendar-date-fields .field{margin-block:7px}.calendar-date-help{font-size:.73rem;line-height:1.9}.calendar-courses{border:1px solid var(--border);border-radius:12px;padding:14px;margin:16px 0;max-height:230px;overflow:auto;min-width:0}.calendar-courses legend{font-size:.86rem;padding-inline:5px}.calendar-courses p{font-size:.75rem;margin:0 0 8px}.calendar-courses label,.calendar-all-day label{display:flex;align-items:center;gap:10px;min-height:44px;font-size:.87rem;cursor:pointer}.calendar-courses input[type=checkbox],.calendar-all-day input[type=checkbox]{width:20px;height:20px;min-height:20px;flex:0 0 20px;accent-color:var(--accent);padding:0}.calendar-all-day{margin-block:16px}.calendar-form-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.calendar-form-errors,.calendar-modal-error{border:1px solid var(--danger);background:var(--danger-bg);color:var(--danger);padding:12px;border-radius:12px;font-size:.83rem;line-height:2}.calendar-form-errors ul{margin:0;padding-inline-start:18px}.calendar-modal .errorlist{color:var(--danger);font-size:.78rem;margin:6px 0;padding-inline-start:18px}.calendar-conflict{display:flex;flex-direction:column;gap:8px;font-size:.82rem;line-height:1.9}.calendar-description{white-space:pre-wrap;overflow-wrap:anywhere;line-height:2.1;margin:22px 0}.calendar-event-when{display:flex;align-items:flex-start;gap:10px;line-height:2}.calendar-event-when svg{flex:0 0 22px;margin-top:4px}.calendar-event-courses{display:flex;gap:8px;flex-wrap:wrap}.calendar-event-courses .tag{white-space:normal}.calendar-leave{border:1px solid var(--border);padding:20px;border-radius:12px;margin-top:15px;background:var(--surface-soft)}.calendar-leave p{font-size:.86rem}.calendar-standalone{max-width:640px;margin-inline:auto}.calendar-standalone>article,.calendar-standalone>form{margin-top:24px}[data-calendar-delete]{padding:15px;border:1px solid var(--border);border-radius:12px;margin-top:20px;font-size:.85rem;line-height:1.9}

@media(max-width:600px) {
  .calendar-modal { width: calc(100% - 16px); max-height: calc(100dvh - 16px); padding: 22px 16px; border-radius: 18px; }
  .calendar-dialog-head h2 { font-size: 1.2rem; }
  .calendar-form-actions .button { flex: 1; min-width: 100px; }
  .calendar-date-fields { gap: 10px; }
  .calendar-modal input, .calendar-modal textarea, .calendar-modal select { font-size: 16px; }
}
@media(prefers-reduced-motion:reduce) { .calendar-section *, .calendar-modal * { scroll-behavior: auto; transition: none; animation: none; } }

/* Compact event editor, including a bounded multi-class dropdown. */
:root{--event-dialog-width:600px;--event-dialog-padding:26px;--course-option-height:48px;--course-visible-options:7}
.calendar-modal{width:min(var(--event-dialog-width),calc(100% - 32px));padding:var(--event-dialog-padding);border-radius:var(--radius);background:var(--surface);color:var(--text)}
.calendar-dialog-head{margin-block-end:18px;padding-inline-end:38px}.calendar-dialog-head h2{margin-block:4px;font-size:21px}.calendar-dialog-head .eyebrow{font-size:10px}
.calendar-dialog-head p{margin-block:4px;font-size:12px}
[data-calendar-form] .field{margin-block:12px}
[data-calendar-form] .calendar-date-fields .field{margin-block:6px}
.calendar-courses{border:0;border-radius:0;padding:0;margin-block:14px;max-height:none;overflow:visible;min-width:0}
.calendar-courses legend{padding:0;margin-block-end:7px;font-size:12px;font-weight:700;color:var(--text)}
.calendar-courses .help{font-size:11px;margin-block:5px 0}
.calendar-course-picker{border:1px solid var(--control-border);border-radius:var(--field-radius);background:var(--surface-soft);color:var(--text);overflow:hidden}
.calendar-course-picker summary{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:46px;padding:10px 14px;cursor:pointer;list-style:none;font-size:13px}
.calendar-course-picker summary::-webkit-details-marker{display:none}
.calendar-course-picker summary:focus-visible{outline:3px solid var(--focus);outline-offset:-3px;border-radius:var(--field-radius)}
.calendar-course-picker[open]>summary{border-block-end:1px solid var(--border);background:var(--accent-soft);color:var(--accent-text)}
.course-picker-chevron{font-size:21px;line-height:1;transition:transform var(--duration)}
.calendar-course-picker[open] .course-picker-chevron{transform:rotate(180deg)}
.calendar-course-options{max-height:calc(var(--course-visible-options) * var(--course-option-height));overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;background:var(--surface)}
.calendar-course-options .calendar-course-option{display:flex;gap:10px;align-items:center;min-width:0;height:var(--course-option-height);min-height:var(--course-option-height);padding:8px 12px;margin:0;border-block-end:1px solid var(--border);font-size:12px;font-weight:400;cursor:pointer}
.calendar-course-option:last-child{border-block-end:0}.calendar-course-option>span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.calendar-course-option:hover,.calendar-course-option:focus-within{background:var(--surface-soft)}
.calendar-course-option:has(input:checked){background:var(--accent-soft);color:var(--accent-text)}
.calendar-course-options>p{padding:14px;margin:0}
.calendar-description-field textarea{display:block;min-height:76px;height:76px;max-height:160px;resize:vertical;line-height:1.8;padding:10px 12px}
.calendar-character-count{display:flex;justify-content:flex-end;margin-block-start:6px;color:var(--muted);font-size:11px;font-variant-numeric:tabular-nums;min-height:20px}
.calendar-character-count.at-limit{color:var(--danger)}
.calendar-form-actions{margin-block-start:16px;padding-block-start:16px;border-block-start:1px solid var(--border)}
.calendar-all-day{margin-block:12px}.calendar-date-help{font-size:11px}
@media(max-width:600px){:root{--event-dialog-padding:18px}.calendar-modal{width:calc(100% - 16px)}.calendar-dialog-head h2{font-size:19px}.calendar-course-picker summary{font-size:14px}.calendar-course-options .calendar-course-option{font-size:12px}.calendar-description-field textarea{font-size:16px}.calendar-dialog-head p{font-size:11px}}