.mono {
  color: var(--ink-grey);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.page-marker {
  color: var(--ink-grey);
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  opacity: 0.6;
  text-transform: uppercase;
}

.handwriting {
  color: var(--ink-blue);
  font-family: "Caveat", cursive;
  font-size: 1.4rem;
  transform: rotate(-1.5deg);
}

.debossed {
  background: rgb(0 0 0 / 1.2%);
  border: 1px solid rgb(0 0 0 / 2%);
  border-radius: 4px;
  box-shadow:
    inset 2px 2px 5px rgb(0 0 0 / 6%),
    inset -1px -1px 2px rgb(255 255 255 / 50%);
}

.sticky-note {
  background-color: var(--sticky-yellow);
  border-left: 1px solid rgb(0 0 0 / 5%);
  box-shadow: 5px 10px 15px rgb(0 0 0 / 5%);
  padding: 20px;
  position: relative;
  transform: rotate(2deg);
  width: 220px;
  z-index: 30;
}

.sticky-note::after {
  bottom: 2px;
  box-shadow: 10px 5px 10px rgb(0 0 0 / 10%);
  content: "";
  height: 10px;
  position: absolute;
  right: 5px;
  transform: skew(15deg) rotate(5deg);
  width: 30px;
}

.stamp {
  border: 2px solid var(--ink-red);
  border-radius: 2px;
  color: var(--ink-red);
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  font-weight: 900;
  mix-blend-mode: multiply;
  opacity: 0.7;
  padding: 4px 12px;
  text-transform: uppercase;
  transform: rotate(-8deg);
}

.cone {
  align-items: center;
  display: flex;
  flex-direction: column-reverse;
  height: 180px;
  margin: 0 auto;
  position: relative;
  width: 300px;
}

.cone-layer {
  align-items: center;
  background: rgb(0 0 0 / 2%);
  border: 1px dashed var(--ink-black);
  display: flex;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  justify-content: center;
  margin-top: -5px;
}

.orientation-hint {
  align-items: center;
  backdrop-filter: blur(12px);
  background:
    linear-gradient(135deg, rgb(242 240 233 / 92%), rgb(255 255 255 / 66%)),
    var(--paper-bg);
  border: 1px solid rgb(0 0 0 / 8%);
  border-radius: 999px;
  box-shadow:
    0 10px 30px rgb(0 0 0 / 12%),
    inset 0 1px 0 rgb(255 255 255 / 64%);
  color: var(--ink-black);
  display: none;
  font-family: "Noto Serif SC", serif;
  gap: 10px;
  left: 50%;
  padding: 9px 16px 10px;
  pointer-events: none;
  position: fixed;
  top: 10px;
  transform: translateX(-50%);
  white-space: nowrap;
  z-index: 120;
}

.orientation-hint span {
  font-size: 14px;
  font-weight: 700;
}

.orientation-hint small {
  color: var(--ink-grey);
  font-family: "Inter", sans-serif;
  font-size: 11px;
}

body.is-mobile-portrait .orientation-hint {
  animation: hint-settle 4s ease both;
  display: flex;
}

@keyframes hint-settle {
  0% {
    opacity: 0;
    transform: translate(-50%, -8px);
  }

  16%,
  70% {
    opacity: 1;
    transform: translate(-50%, 0);
  }

  100% {
    opacity: 0.74;
    transform: translate(-50%, 0);
  }
}

.bp-toolbar {
  align-items: center;
  bottom: 20px;
  display: flex;
  gap: 8px;
  left: 50%;
  max-width: calc(100vw - 16px);
  overflow-x: auto;
  padding: 0 4px 4px;
  position: fixed;
  transform: translateX(-50%);
  z-index: 100;
}

@media (max-width: 760px) {
  .bp-toolbar {
    backdrop-filter: blur(10px);
    background: rgb(242 240 233 / 72%);
    border: 1px solid rgb(0 0 0 / 10%);
    border-radius: 999px;
    bottom: 12px;
    box-shadow: 0 10px 30px rgb(0 0 0 / 12%);
    justify-content: flex-start;
    left: 8px;
    max-width: none;
    padding: 6px;
    right: 8px;
    transform: none;
    width: auto;
  }

  .bp-toolbar .control-btn {
    flex: 0 0 auto;
  }

  .bp-toolbar .nav-controls {
    flex: 1 1 auto;
    min-width: 72px;
    overflow-x: auto;
  }

  .control-btn {
    border-radius: 999px;
    font-size: 11px;
    min-height: 36px;
    padding: 8px 12px;
  }

  .nav-controls {
    gap: 9px;
    justify-content: center;
  }

  .nav-dot {
    height: 9px;
    min-width: 9px;
    width: 9px;
  }
}

body.is-mobile-landscape .bp-toolbar {
  bottom: 8px;
  max-width: min(760px, calc(100vw - 18px));
}

body.is-mobile-portrait .bp-toolbar {
  bottom: 12px;
  left: 10px;
  right: 10px;
}

body.is-mobile-portrait .bp-toolbar .nav-controls {
  justify-content: flex-start;
  max-width: 34vw;
}

.control-btn {
  background: var(--paper-bg);
  border: 1px solid rgb(0 0 0 / 12%);
  box-shadow: 2px 2px 0 rgb(0 0 0 / 5%);
  cursor: pointer;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  min-height: 28px;
  padding: 6px 10px;
}

.control-btn:hover {
  box-shadow: 4px 4px 0 rgb(0 0 0 / 5%);
  transform: translate(-1px, -1px);
}

.nav-controls {
  align-items: center;
  display: flex;
  gap: 8px;
}

.nav-dot {
  background: rgb(0 0 0 / 20%);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  height: 8px;
  padding: 0;
  transition: all 0.3s;
  width: 8px;
}

.nav-dot.active {
  background: var(--ink-black);
  transform: scale(1.5);
}

[data-language="en"] [data-lang="zh"],
[data-language="zh"] [data-lang="en"] {
  display: none !important;
}