/* Fine print and paper construction details; the line animation stays in landing-v2.css. */
.site-cover {
  isolation: isolate;
  box-shadow: inset 0 0 0 16px rgba(216, 209, 194, .2), inset 0 0 90px rgba(62, 52, 40, .06);
}

.site-cover::before {
  box-shadow: 0 0 0 22px var(--cover-paper), 0 0 0 23px rgba(216, 209, 194, .58);
}

.site-cover::after {
  background: rgba(233, 227, 213, .26);
}

.cover-frame::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 16px 20px;
  border: 1px solid rgba(216, 209, 194, .72);
  pointer-events: none;
}

.cover-frame::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: 16px;
  right: 23.5%;
  bottom: 16px;
  width: 1px;
  background: rgba(216, 209, 194, .72);
  pointer-events: none;
}

.cover-title-wrap::before {
  content: "觀";
  position: absolute;
  z-index: -1;
  top: -112px;
  left: -34px;
  color: rgba(46, 48, 44, .055);
  font: 800 240px/.8 var(--serif);
  pointer-events: none;
}

.cover-center {
  position: relative;
}

.cover-disc {
  display: none;
}

.cover-center::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  right: -4vw;
  bottom: 0;
  width: 47%;
  border-left: 1px solid rgba(216, 209, 194, .62);
  background: rgba(233, 227, 213, .34);
  pointer-events: none;
}

.cover-orbit {
  position: absolute;
  z-index: 1;
  top: 50%;
  right: max(7vw, 72px);
  width: min(36vw, 470px);
  aspect-ratio: 1;
  display: block;
  transform: translateY(-48%);
  color: rgba(125, 120, 108, .64);
  font: 600 11px/1 var(--serif);
  pointer-events: none;
}

.cover-orbit span {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}

.cover-orbit span::after {
  content: "";
  display: block;
  width: 20px;
  height: 1px;
  background: var(--cover-line-color);
}

.cover-orbit span:nth-child(1) { top: -3px; left: 50%; transform: translateX(-50%); flex-direction: column; gap: 6px; }
.cover-orbit span:nth-child(1)::after { width: 1px; height: 20px; }
.cover-orbit span:nth-child(2) { top: 18%; right: -2px; flex-direction: row-reverse; }
.cover-orbit span:nth-child(3) { top: 50%; right: -9px; transform: translateY(-50%); flex-direction: row-reverse; }
.cover-orbit span:nth-child(4) { bottom: 18%; right: -2px; flex-direction: row-reverse; }
.cover-orbit span:nth-child(5) { bottom: -3px; left: 50%; transform: translateX(-50%); flex-direction: column-reverse; gap: 6px; }
.cover-orbit span:nth-child(5)::after { width: 1px; height: 20px; }
.cover-orbit span:nth-child(6) { bottom: 18%; left: -2px; }
.cover-orbit span:nth-child(7) { top: 50%; left: -9px; transform: translateY(-50%); }
.cover-orbit span:nth-child(8) { top: 18%; left: -2px; }

.cover-enter {
  box-shadow: 4px 4px 0 rgba(46, 48, 44, .1);
}

@media (max-width: 900px) {
  .cover-orbit { right: 5vw; width: min(40vw, 410px); }
}

@media (max-width: 680px) {
  .site-cover {
    box-shadow: inset 0 0 0 10px rgba(216, 209, 194, .22), inset 0 0 72px rgba(62, 52, 40, .055);
  }
  .site-cover::before,
  .site-cover::after { display: none; }
  .cover-frame {
    padding: 18px 18px 16px;
  }
  .cover-frame::before { inset: 10px; }
  .cover-frame::after,
  .cover-orbit { display: none; }
  .cover-center::before { display: none; }
  .cover-masthead {
    padding-bottom: 12px;
  }
  .cover-center {
    grid-template-rows: auto minmax(0, 1fr);
    gap: 4px;
    padding: 18px 0 8px;
  }
  .cover-title-wrap {
    align-self: start;
  }
  .cover-title-wrap h1 {
    margin: 8px 0 9px;
    font-size: 58px;
  }
  :lang(en) .cover-title-wrap h1 {
    font-size: 52px;
  }
  .cover-quote {
    font-size: 13px;
  }
  .cover-hexagram {
    isolation: isolate;
    width: min(56vw, 228px);
    height: min(34vh, 258px);
    min-height: 218px;
    align-self: center;
    gap: 12px;
  }
  .cover-disc {
    position: absolute;
    z-index: -1;
    top: 50%;
    left: 50%;
    display: block;
    width: min(68vw, 266px);
    aspect-ratio: 1;
    border: 1px solid rgba(216, 209, 194, .78);
    border-radius: 50%;
    background: rgba(233, 227, 213, .4);
    box-shadow:
      0 0 0 24px var(--cover-paper),
      0 0 0 25px rgba(216, 209, 194, .64),
      0 0 0 51px var(--cover-paper),
      0 0 0 52px rgba(216, 209, 194, .46);
    transform: translate(-50%, -50%);
  }
  .cover-disc::before,
  .cover-disc::after {
    position: absolute;
    left: 50%;
    color: var(--cover-muted);
    font: 500 10px/1 var(--serif);
    letter-spacing: 0;
    white-space: nowrap;
    transform: translateX(-50%);
  }
  .cover-disc::before {
    content: attr(data-upper);
    top: -45px;
  }
  .cover-disc::after {
    content: attr(data-lower);
    bottom: -45px;
    color: var(--cover-accent);
  }
  .cover-line {
    height: 11px;
    gap: 25px;
  }
  .cover-hexagram::before {
    top: 50%;
    left: -33px;
    font-size: 11px;
  }
  .cover-hexagram::after {
    top: 50%;
    right: -33px;
    bottom: auto;
    font-size: 9px;
    transform: translateY(-50%);
  }
  .cover-footer {
    min-height: 62px;
    padding-top: 12px;
  }
  .cover-title-wrap::before { top: -70px; left: 50%; font-size: 170px; transform: translateX(-50%); }
}

@media (max-width: 370px) {
  .cover-frame { padding-right: 16px; padding-left: 16px; }
  .cover-title-wrap h1 { font-size: 54px; }
  :lang(en) .cover-title-wrap h1 { font-size: 48px; }
  .cover-hexagram { width: 56vw; }
  .cover-disc {
    width: 63vw;
    box-shadow:
      0 0 0 22px var(--cover-paper),
      0 0 0 23px rgba(216, 209, 194, .64),
      0 0 0 45px var(--cover-paper),
      0 0 0 46px rgba(216, 209, 194, .46);
  }
}

@media (max-width: 680px) and (max-height: 760px) {
  .cover-center { padding-top: 14px; padding-bottom: 8px; }
  .cover-title-wrap h1 { margin-top: 5px; margin-bottom: 6px; }
  .cover-hexagram { min-height: 196px; height: 29vh; }
  .cover-footer { min-height: 58px; padding-top: 9px; }
}
.site-cover::before,
.site-cover::after,
.cover-orbit { transform: translateY(-50%); }
@media (min-width: 1361px) {
  .site-cover::before,
  .cover-orbit { right: calc((100vw - 1360px) / 2 + 105px + clamp(0px, calc(.75vw - 10.8px), 8px)); }
  .site-cover::after { right: calc((100vw - 1360px) / 2 + 149px + clamp(0px, calc(.75vw - 10.8px), 8px)); }
}