.update-calendar {
  padding: clamp(14px, 1.6vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--ui-radius, 6px);
  background: var(--ui-surface, var(--paper-light));
  color: var(--ink);
}
.calendar-heading, .calendar-nav { display: flex; align-items: center; gap: 6px; }
.calendar-heading { justify-content: space-between; margin-bottom: 12px; }
.calendar-heading h1 { font-size: 14px; color: var(--muted); margin: 0 0 4px; }
.calendar-heading p { margin: 0; font: 700 clamp(22px, 3vw, 32px)/1.3 "Gowun Batang", serif; }
.calendar-nav button { min-width: 36px; min-height: 36px; padding: 4px 10px; background: transparent; border: 1px solid var(--line); border-radius: 4px; color: inherit; cursor: pointer; }
.calendar-grid { column-gap: 24px; column-rule: 1px solid var(--line); }
.calendar-grid > h2 { break-after: avoid; margin: 12px 0 0; padding-bottom: 4px; color: var(--red); font-size: 16px; border-bottom: 1px solid var(--line); }
.calendar-grid > h2:first-child { margin-top: 0; }
.calendar-grid > div { break-inside: avoid; display: grid; grid-template-columns: 4.5em minmax(0, 1fr); align-items: baseline; gap: 6px; padding: 5px 0; border-bottom: 1px solid var(--line); }
.calendar-day-events { display: grid; gap: 2px; }
.calendar-day-events strong { margin-right: 4px; font-variant-numeric: tabular-nums; }
.calendar-grid time { font-size: 14px; font-weight: 700; }
.calendar-grid > p { column-span: all; color: var(--muted); }
.calendar-grid a { justify-self: stretch; text-decoration: none; padding: 3px 5px; border-radius: 3px; background: var(--ui-field, var(--paper)); color: var(--ink); font-size: 12px; font-weight: 500; line-height: 1.4; text-align: start; word-break: keep-all; overflow-wrap: anywhere; }
.calendar-grid [aria-current="date"] > time { text-decoration: underline; text-underline-offset: 3px; }
.calendar-grid a:hover, .calendar-nav button:hover { background: var(--ui-tint, var(--art-tint)); }
.calendar-grid a:hover { text-decoration: underline; }
.update-calendar :is(a,button):focus-visible { outline: 2px solid var(--red); outline-offset: -2px; }
@container tools-content (min-width: 650px) {
  .calendar-grid { column-count: 2; }
}
@container tools-content (min-width: 1120px) {
  .calendar-grid { column-count: 3; }
}
@media (max-width: 760px) {
  .calendar-grid > div { grid-template-columns: 5em minmax(0, 1fr); gap: 6px; }
  .calendar-grid a { padding: 4px; font-size: 12px; }
}