:root {
  --color-calendar-header: #000;
  --color-calendar-header-text: #fff;
  --color-calendar-text: #000;
  --color-calendar-accent: #ff4747;
}

.calendar-section {
  padding: 16px;
  width: 100%;

  font-family: sans-serif;
  font-size: 16px;
  color: var(--color-calendar-text);
}

.calendar-header {
  display: grid;
  grid-template-columns: auto auto 1fr auto auto;
  align-items: center;

  padding: 16px 8px;
  margin-bottom: 8px;

  background: var(--color-calendar-header);
  color: var(--color-calendar-header-text);
  border-radius: 16px;
}

.calendar-header h2 {
  font-size: 20px;
  font-weight: bold;
  text-align: center;

  line-height: 1.2;
  white-space: normal;
  word-break: break-word;
  cursor: default;
}

.calendar-toggle-step-button,
.calendar-today-button {
  width: 64px;
  height: 32px;
  
  cursor: pointer;
  border: 1px solid var(--color-calendar-header-text);
  border-radius: 6px;

  transition:
    text-shadow 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}

.calendar-previous-button,
.calendar-next-button {
  width: 32px;
  height: 32px;
  margin: 0px 8px;
  
  cursor: pointer;
  border: 1px solid var(--color-calendar-header-text);
  border-radius: 6px;

  transition:
    text-shadow 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}

.calendar-header button:hover,
.calendar-header button:active {
  text-shadow: 0 0 16px var(--color-calendar-accent);
  border-color: var(--color-calendar-accent);
  color: var(--color-calendar-accent);
}

.calendar-body {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  
  padding: 0px 8px;
}

.day-card {
  padding: 12px;
  text-align: center;

  border: 1px solid var(--color-calendar-text);
  border-radius: 8px;
  background: none;
  color: var(--color-calendar-text);

  user-select: none;
  cursor: pointer;

  transition: all 0.3s ease;
}

.day-card:hover {
  background: var(--color-calendar-header);
  color: var(--color-calendar-header-text);
  transform: scale(1.1);
}

.day-card.selected {
  background: var(--color-calendar-header);
  color: var(--color-calendar-header-text);
}

.day-card.today {
  font-weight: bold;
  border-color: var(--color-calendar-accent);
  color: var(--color-calendar-accent);
}

.date {
  font-size: 18px;
  font-weight: bold;
}

.weekday {
  font-size: 16px;
}

@media (max-width: 700px) {
  .calendar-section {
    padding: 8px;
  }

  .calendar-body {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }
}