.rockin-page {
  min-height: calc(100vh - 140px);
  margin-top: 2rem;
}

.rockin-shell {
  width: calc(100% - 20px);
  min-height: calc(100vh - 220px);
  margin: 0 10px 24px;
  padding: 28px 20px 24px;
  background: #fff;
  color: #000;
  position: relative;
}

.rockin-phrase {
  width: min(900px, 100%);
  min-height: 300px;
  margin: 28px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 40px;
}

.rockin-phrase.is-hidden {
  visibility: hidden;
}

.rockin-phrase-text {
  margin: 0;
  min-height: 2em;
  position: relative;
  width: min(900px, 100%);
}

.rockin-phrase-drawing {
  width: 100%;
  height: auto;
  overflow: visible;
  display: block;
}

.rockin-phrase-drawing .rockin-script-path {
  fill: #000;
  stroke: none;
  fill-opacity: 0;
}

.rockin-menu {
  --cell: clamp(16px, calc((100vw - 56px) / 41), 20px);
  --base-offset: 25vh;
  position: relative;
  min-height: calc(100vh - 490px);
  margin-top: 18px;
}

.rockin-row {
  --row-step: var(--cell);
  display: grid;
  grid-template-columns: repeat(41, var(--cell));
  grid-auto-rows: var(--cell);
  min-height: calc(var(--cell) * 2);
  height: calc(var(--cell) * 2);
  transition: opacity 180ms ease, transform 240ms ease;
  align-items: end;
  overflow: visible;
  position: absolute;
  left: 50%;
  bottom: var(--row-bottom);
  transform: translate(-50%, 0);
  width: fit-content;
}

#rockinYears {
  --row-bottom: var(--base-offset);
  z-index: 1;
}

#rockinMonths {
  --row-bottom: calc(var(--base-offset) + var(--row-step));
  z-index: 2;
}

#rockinDays {
  --row-bottom: calc(var(--base-offset) + (var(--row-step) * 2));
  z-index: 3;
}

.rockin-row.is-hidden {
  opacity: 0;
  transform: translate(-50%, calc(var(--row-step) + 6px));
  pointer-events: none;
}

.rockin-box {
  position: relative;
  width: var(--cell);
  height: var(--cell);
  border: 1px solid #e10600;
  background: transparent;
  color: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 10px;
  line-height: 1;
  text-decoration: none;
  cursor: default;
  padding: 0;
  overflow: visible;
  align-self: end;
  transform-origin: bottom center;
  transition: height 120ms ease, background-color 120ms ease, color 120ms ease, border-color 120ms ease;
}

.rockin-box::before,
.rockin-box::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.rockin-box::before {
  background:
    linear-gradient(45deg, transparent calc(50% - 0.5px), #e10600 calc(50% - 0.5px), #e10600 calc(50% + 0.5px), transparent calc(50% + 0.5px));
}

.rockin-box::after {
  background:
    linear-gradient(-45deg, transparent calc(50% - 0.5px), #e10600 calc(50% - 0.5px), #e10600 calc(50% + 0.5px), transparent calc(50% + 0.5px));
}

.rockin-box > span {
  position: relative;
  z-index: 1;
  opacity: 0;
  transition: opacity 120ms ease;
}

.rockin-box.is-available,
.rockin-box.is-back,
.rockin-box.is-anchor {
  border-color: #000;
  background: #000;
}

.rockin-box.is-available::before,
.rockin-box.is-available::after,
.rockin-box.is-back::before,
.rockin-box.is-back::after,
.rockin-box.is-anchor::before,
.rockin-box.is-anchor::after {
  display: none;
}

.rockin-box.is-clickable {
  cursor: pointer;
}

.rockin-box.is-clickable:hover,
.rockin-box.is-clickable:focus-visible {
  height: calc(var(--cell) * 2);
  background: #000;
  color: #fff;
  outline: none;
  z-index: 2;
}

.rockin-box.is-clickable:hover > span,
.rockin-box.is-clickable:focus-visible > span {
  opacity: 1;
}

@media (max-width: 700px) {
  .rockin-phrase {
    min-height: 220px;
    padding: 12px 20px;
  }

  .rockin-menu {
    --cell: clamp(12px, calc((100vw - 28px) / 41), 18px);
    --base-offset: 22vh;
  }

  .rockin-shell {
    width: calc(100% - 12px);
    margin: 0 6px 20px;
    padding: 20px 12px 18px;
  }
}