.contact-rail {
  --tab-leather: #4c3022;
  --tab-thread: #b48a66;
  --tab-paper: #fff8ec;
  --tab-ink: #38251c;
  position: fixed;
  z-index: 34;
  inset: 50% max(14px, env(safe-area-inset-right, 0px)) auto auto;
  translate: 0 -50%;
  color: var(--tab-ink);
  font-family: var(--body, Arial, sans-serif);
}

.contact-rail-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-block-size: 48px;
  padding-inline: 14px;
  border: 1px solid #39251a;
  border-radius: 9px 5px 5px 9px;
  color: #ffefdb;
  background: linear-gradient(128deg, #5f4030, var(--tab-leather) 72%);
  box-shadow: inset 0 1px #fff4dd2c, 0 5px 12px #35241e35;
  font: 650 13px/1.2 var(--body, Arial, sans-serif);
  letter-spacing: .035em;
  cursor: pointer;
}

.contact-rail-trigger::before {
  position: absolute;
  inset: 4px;
  border: 1px dashed var(--tab-thread);
  border-radius: 5px 2px 2px 5px;
  content: '';
  pointer-events: none;
}

.contact-rail-trigger:is(:hover, [aria-expanded="true"]) {
  background: #634333;
}

.contact-rail-links {
  position: absolute;
  inset: 50% calc(100% + 8px) auto auto;
  translate: 0 -50%;
  display: grid;
  box-sizing: border-box;
  inline-size: 158px;
  padding: 5px;
  border: 1px solid #cbb291;
  border-radius: 11px;
  background: var(--tab-paper);
  box-shadow: 0 8px 22px #3b241d24;
}

.contact-rail-trigger[aria-expanded="false"] + .contact-rail-links {
  display: none;
}

.contact-rail-link {
  display: grid;
  grid-template-columns: 20px 1fr;
  align-items: center;
  gap: 8px;
  min-block-size: 44px;
  padding: 7px 9px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font: 600 13px/1.2 var(--body, Arial, sans-serif);
  text-align: start;
  text-decoration: none;
  cursor: pointer;
}

.contact-rail-link:is(:hover, :focus-visible) {
  background: #efdfc8;
}

.contact-rail svg,
.contact-rail-dialog svg {
  inline-size: 19px;
  block-size: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-rail-trigger svg {
  inline-size: 16px;
  block-size: 16px;
}

.contact-rail :focus-visible,
.contact-rail-dialog :focus-visible {
  outline: 2px solid #75431e;
  outline-offset: 2px;
}

.contact-rail-dialog {
  position: fixed;
  inset: 0;
  box-sizing: border-box;
  margin: auto;
  inline-size: min(360px, calc(100vw - 32px));
  max-block-size: calc(100dvh - 32px);
  padding: 40px 24px 20px;
  border: 1px solid #d8c6b1;
  border-radius: 18px;
  background: #fdfbf9;
  color: #2b1a07;
  text-align: center;
  box-shadow: 0 16px 56px #2b1a0733;
  overflow: auto;
}

.contact-rail-dialog::backdrop {
  background: #2b1a0766;
}

.contact-rail-dialog h2 {
  margin: 0;
  font: 500 27px/1.15 var(--title, Georgia, serif);
}

.contact-rail-dialog p {
  margin: 8px 0 12px;
  font: 400 14px/1.4 var(--body, Arial, sans-serif);
}

.contact-rail-dialog img {
  display: block;
  inline-size: min(100%, 248px);
  block-size: auto;
  margin-inline: auto;
  border-radius: 8px;
}

.contact-rail-dialog-close {
  position: absolute;
  inset: 7px 7px auto auto;
}

.contact-rail-dialog-close button {
  display: grid;
  place-items: center;
  inline-size: 34px;
  block-size: 34px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.contact-rail-dialog-close button:hover {
  background: #f1e7da;
}

@media (max-width: 760px), (max-height: 440px) {
  .opening-scroll {
    display: none;
  }

  .contact-rail {
    inset: auto max(12px, env(safe-area-inset-right, 0px)) max(14px, env(safe-area-inset-bottom, 0px)) auto;
    translate: none;
  }

  .contact-rail-links {
    inset: auto 0 calc(100% + 8px) auto;
    translate: none;
  }
}

@media (max-width: 360px) {
  html[data-chapter='opening'] .contact-rail {
    inset-block-end: calc(86px + env(safe-area-inset-bottom, 0px));
  }
}