/* 3D Book */

#v3d {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 680px;
  overflow: hidden;
}

.scene {
  position: relative;
  width: 100%;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 900px;
}

.scene::before {
  content: '';
  position: absolute;
  inset: 8% 12% auto;
  height: 58%;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(255,255,255,.92), rgba(255,255,255,0) 72%);
  pointer-events: none;
}

.scene::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 10%;
  width: min(72%, 520px);
  height: 46px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(14,14,15,.18), rgba(14,14,15,0) 72%);
  pointer-events: none;
}

.coming-soon-panel {
  position: relative;
  z-index: 1;
  width: min(92%, 520px);
  padding: 64px 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,255,255,.82);
  box-shadow: 0 24px 70px rgba(14,14,15,.08);
  text-align: center;
}

.coming-soon-kicker {
  margin-bottom: 12px;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  letter-spacing: 0;
  text-transform: uppercase;
}

.coming-soon-title {
  color: var(--ink);
  font-family: 'Playfair Display', serif;
  font-size: 76px;
  font-weight: 700;
  line-height: 1;
}

.book-wrap {
  display: inline-block;
  transform-style: preserve-3d;
  transition: transform .28s ease;
}

.book-wrap.spin { animation: autoSpin 18s linear infinite; }

.book-wrap.tl { transform: rotateY(-32deg); }

.book-wrap.tr { transform: rotateY(32deg); }

.book-wrap.tt { transform: rotateX(22deg) rotateY(-18deg); }

@keyframes autoSpin {
  0% { transform: rotateY(-35deg); }
  25% { transform: rotateY(0deg) rotateX(8deg); }
  50% { transform: rotateY(35deg); }
  75% { transform: rotateY(0deg) rotateX(-4deg); }
  100% { transform: rotateY(-35deg); }
}

.book {
  position: relative;
  transform-style: preserve-3d;
  filter: drop-shadow(0 24px 30px rgba(14,14,15,.18));
}

.face {
  position: absolute;
  backface-visibility: hidden;
}

.f-front {
  transform: translateZ(calc(var(--bd) / 2));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 1px 5px 5px 1px;
  box-shadow: 8px 12px 34px rgba(14,14,15,.28);
}

.f-front::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--mock-spine-edge, 10px);
  background: linear-gradient(to right, rgba(9,11,18,.34), rgba(255,255,255,.08) 48%, rgba(255,255,255,0) 100%);
  pointer-events: none;
}

.cv-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 16px 12px;
}

.cv-title {
  font-family: 'Playfair Display', serif;
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  line-height: 1.2;
  word-break: break-word;
}

.cv-rule {
  width: 36px;
  height: 1.5px;
  background: currentColor;
  margin: 10px auto;
  opacity: .4;
}

.cv-sub {
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  opacity: .65;
}

.cv-auth {
  padding: 9px 12px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  opacity: .8;
  border-top: 1px solid rgba(255,255,255,.15);
}

.f-back {
  transform: translateZ(calc(var(--bd) / -2)) rotateY(180deg);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 18px;
  overflow: hidden;
  border-radius: 5px 1px 1px 5px;
  box-shadow: -8px 10px 28px rgba(14,14,15,.16);
}

.f-spine {
  transform: translateZ(calc(var(--bd) / 2)) rotateY(-90deg);
  transform-origin: right center;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 2px 0 0 2px;
  box-shadow:
    inset 1px 0 0 rgba(255,255,255,.12),
    inset -1px 0 0 rgba(0,0,0,.22);
}

.spine-txt {
  font-family: 'Playfair Display', serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.book.has-cover-art .cv-body,
.book.has-cover-art .cv-auth,
.book.has-cover-art .spine-txt {
  opacity: 0;
  pointer-events: none;
}

.book.has-cover-art .f-front,
.book.has-cover-art .f-back,
.book.has-cover-art .f-spine {
  background-repeat: no-repeat;
  background-color: #141821;
}

.book.has-cover-art .f-front::before,
.book.has-cover-art .f-back::before,
.book.has-cover-art .f-spine::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.book.has-cover-art .f-front::before {
  background: linear-gradient(180deg, rgba(255,255,255,.07), transparent 22%, rgba(0,0,0,.08) 100%);
}

.book.has-cover-art .f-back::before {
  background: linear-gradient(180deg, rgba(255,255,255,.05), transparent 18%, rgba(0,0,0,.1) 100%);
}

.book.has-cover-art .f-spine::before {
  background: linear-gradient(90deg, rgba(255,255,255,.16), rgba(255,255,255,.03) 18%, rgba(0,0,0,.12) 100%);
}

.book.has-cover-art .f-front::after {
  background: linear-gradient(to right, rgba(11,12,18,.26), rgba(255,255,255,.09) 55%, rgba(255,255,255,0) 100%);
}

.f-top {
  transform: translateY(calc(var(--bd) / -2)) rotateX(90deg);
  transform-origin: bottom center;
  background: #e8e0d0;
  box-shadow: inset 0 -1px 0 rgba(0,0,0,.08);
}

.f-bot {
  transform: translateY(calc(var(--bd) / 2)) rotateX(-90deg);
  transform-origin: top center;
  background: #ddd5c2;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.35);
}

.pages {
  position: absolute;
  transform: rotateY(90deg);
  transform-origin: left center;
  background:
    linear-gradient(180deg, rgba(255,255,255,.6), rgba(219,210,196,.35)),
    repeating-linear-gradient(to right, #f0ebe2, #f0ebe2 1px, #e8e3da 1px, #e8e3da 2px);
  border-top: 1px solid #d5cec2;
  border-bottom: 1px solid #d5cec2;
  border-radius: 0 3px 3px 0;
  box-shadow:
    inset 1px 0 0 rgba(255,255,255,.3),
    -6px 0 12px rgba(14,14,15,.08);
}

/* Stage controls */

.s-ctrl {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.cbtn {
  font-size: 11px;
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: rgba(247,244,239,.92);
  color: var(--ink);
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  transition: all .15s;
  backdrop-filter: blur(4px);
}

.cbtn:hover,
.cbtn.on {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

@media (max-width: 900px) {
  #v3d {
    min-height: 540px;
  }

  .scene {
    min-height: 430px;
  }

  .coming-soon-title {
    font-size: 42px;
  }
}