.iso-calendar-page {
  padding-bottom: calc(var(--grid-unit) * 8);
}

.iso-calendar-header {
  display: block;
  margin: calc(var(--grid-unit) * 4) 0 calc(var(--grid-unit) * 5);
  border-bottom: 4px solid var(--color-accent);
}

.iso-calendar-header h1 {
  margin-bottom: calc(var(--grid-unit) * 4);
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 0.95;
}

.iso-calendar-kicker {
  grid-column: 1 / -1;
  margin-bottom: calc(var(--grid-unit) * 2);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.iso-calendar-kicker time {
  margin-left: var(--grid-unit);
  color: var(--color-text-primary);
}

.iso-calendar-intro {
  align-self: end;
  margin-bottom: calc(var(--grid-unit) * 4);
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.5;
}

.iso-calendar-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--grid-unit);
  margin-bottom: calc(var(--grid-unit) * 3);
}

.iso-calendar-controls label {
  margin-left: var(--grid-unit);
  font-family: var(--font-heading-secondary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.iso-calendar-controls button,
.iso-calendar-controls input {
  min-height: 44px;
  border: 2px solid var(--color-text-primary);
  border-radius: 0;
  background: var(--color-background);
  color: var(--color-text-primary);
  font: 700 0.95rem var(--font-mono);
}

.iso-calendar-controls button {
  padding: 0 calc(var(--grid-unit) * 2);
  cursor: pointer;
}

.iso-calendar-controls button:hover,
.iso-calendar-controls button:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-background);
}

.iso-calendar-controls button:disabled {
  cursor: not-allowed;
  opacity: 0.35;
}

.iso-calendar-controls input {
  width: 7.5rem;
  padding: 0 var(--grid-unit);
  text-align: center;
}

.iso-current-year {
  margin-left: var(--grid-unit);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.iso-calendar-year-heading {
  margin-bottom: calc(var(--grid-unit) * 2);
  color: var(--color-text-primary);
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.iso-calendar-table-wrap {
  overflow-x: auto;
  border-top: 2px solid var(--color-text-primary);
  border-bottom: 2px solid var(--color-text-primary);
}

.iso-calendar-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  table-layout: fixed;
  font-variant-numeric: tabular-nums;
}

.iso-calendar-table th,
.iso-calendar-table td {
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.iso-calendar-table tr > :last-child {
  border-right: 0;
}

.iso-calendar-table tbody tr:last-child > * {
  border-bottom: 0;
}

.iso-calendar-table thead th {
  height: 38px;
  padding: 0 var(--grid-unit);
  background: var(--color-text-primary);
  color: var(--color-background);
  font-family: var(--font-heading-secondary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.iso-calendar-table thead tr:first-child th {
  border-bottom-color: var(--color-background);
}

.iso-calendar-table .iso-week-heading {
  width: 72px;
}

.iso-calendar-table .iso-month-heading {
  width: 66px;
}

.iso-day-short {
  display: none;
}

.iso-calendar-week {
  padding: 0 var(--grid-unit);
  color: var(--color-text-primary);
  font: 700 1rem var(--font-mono);
}

.iso-calendar-month {
  position: relative;
  border-bottom: 2px solid var(--color-text-primary) !important;
  background: var(--color-surface);
  color: var(--color-accent);
  overflow: hidden;
  vertical-align: middle;
}

.iso-calendar-month span {
  display: inline-block;
  font-family: var(--font-heading-primary);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.iso-calendar-day {
  height: 46px;
  padding: 0;
}

.iso-calendar-day time {
  position: relative;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.3em;
  width: 100%;
  min-height: 46px;
  padding: 12px 4px 8px;
  font-family: var(--font-mono);
}

.iso-calendar-day.is-weekend {
  background: var(--color-surface);
}

.iso-calendar-day.is-outside-year {
  color: var(--color-text-muted);
}

.iso-calendar-day.is-today time::after {
  position: absolute;
  right: 12%;
  bottom: 5px;
  left: 12%;
  height: 3px;
  background: var(--color-accent);
  content: "";
}

.iso-calendar-day-month {
  color: var(--color-accent);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.iso-calendar-day-number {
  font-size: 0.95rem;
}

.iso-calendar-noscript {
  margin-top: calc(var(--grid-unit) * 2);
  color: var(--color-accent);
}

@media (max-width: 760px) {
  .iso-calendar-header {
    display: block;
    margin-top: calc(var(--grid-unit) * 2);
  }

  .iso-calendar-header h1 {
    font-size: clamp(2.35rem, 14vw, 4.5rem);
  }

  .iso-calendar-intro {
    max-width: 40rem;
  }

  .iso-day-long {
    display: none;
  }

  .iso-day-short {
    display: inline;
  }
}