.calendar-nav {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 24px;
  width: min(1264px, 100%);
  margin: 0 auto;
  padding: 8px clamp(16px, 2.5vw, 32px);
  border-bottom: 1px solid #e8ecf0;
  border-radius: 0 0 16px 16px;
  background: #fff;
  font: 400 14px/1.4 system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

.calendar-nav .calendar-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-inline: 0;
  color: #242d3b;
  font-size: 16px;
  font-weight: 600;
}

.calendar-nav__brand img {
  display: block;
  width: 28px;
  height: 28px;
}

.calendar-nav .calendar-nav__links {
  display: flex;
  flex: 1 1 auto;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px 4px;
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.calendar-nav a {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 6px 12px;
  border-radius: 8px;
  color: #415169;
  text-decoration: none;
  white-space: nowrap;
}

.calendar-nav a:hover {
  background: #f4f6f8;
  color: #263248;
  text-decoration: none;
}

.calendar-nav a[aria-current="page"] {
  background: #eaf4ff;
  color: #005baa;
  font-weight: 600;
}

.calendar-nav a:focus-visible,
.calendar-nav__toggle:focus-visible {
  outline: 2px solid #005baa;
  outline-offset: -2px;
}

.calendar-nav__toggle {
  display: none;
}

@media (max-width: 600px) {
  .calendar-nav {
    position: sticky;
    top: 0;
    z-index: 15;
    justify-content: space-between;
    border-radius: 0;
  }

  .calendar-nav__toggle:not([hidden]) {
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 6px 12px;
    border: 1px solid #e8ecf0;
    border-radius: 8px;
    background: #fff;
    color: #415169;
    font: inherit;
    cursor: pointer;
  }

  .calendar-nav__toggle[aria-expanded="true"] {
    background: #eaf4ff;
    color: #005baa;
  }

  .calendar-nav__toggle:not([hidden])[aria-expanded="false"] + .calendar-nav__links {
    display: none;
  }

  .calendar-nav .calendar-nav__links {
    display: grid;
    flex-basis: 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-height: calc(100vh - 66px);
    max-height: calc(100dvh - 66px);
    overflow-y: auto;
  }

  .calendar-nav__links a {
    padding-inline: 2px;
    text-align: center;
    white-space: normal;
  }
}