/* ============================================================
   3Powers — the Playbook cross-link.
   The 3D cover is lifted unchanged from the previous landing page;
   it is a faithful rendering of the real book cover.
   ============================================================ */

.playbook-feature {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: var(--space-16);
  align-items: center;
}

.book-scene {
  perspective: 1500px;
  width: 100%;
  display: flex;
  justify-content: center;
  padding: var(--space-6) 0 var(--space-8);
}
.book3d {
  position: relative;
  display: block;
  width: 292px;
  height: 420px;
  transform-style: preserve-3d;
  transform: rotateY(-27deg) rotateX(3deg);
  transition: transform 0.55s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.book3d:hover { text-decoration: none; transform: rotateY(-13deg) rotateX(1deg) translateY(-8px); }
.book3d > span { position: absolute; }

.book-front {
  inset: 0;
  transform: translateZ(21px);
  border-radius: 2px 5px 5px 2px;
  overflow: hidden;
  background:
    repeating-linear-gradient(108deg, rgba(0, 0, 0, 0.04) 0 2px, rgba(255, 255, 255, 0.011) 2px 5px),
    linear-gradient(180deg, rgba(255, 224, 205, 0.07), rgba(0, 0, 0, 0) 26%),
    linear-gradient(180deg, #6e5428 0%, #6e5428 24%, #44474d 24%, #44474d 64%, #5c1a1a 64%, #5c1a1a 100%);
  box-shadow: 26px 40px 60px rgba(33, 28, 22, 0.38);
}
.book-back {
  inset: 0;
  transform: translateZ(-21px);
  border-radius: 5px 2px 2px 5px;
  background: linear-gradient(180deg, #5c4621 0%, #5c4621 24%, #383b40 24%, #383b40 64%, #4c1414 64%, #4c1414 100%);
}
.book-spine {
  top: 0; bottom: 0;
  width: 42px;
  left: -21px;
  transform: rotateY(-90deg);
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0) 30%, rgba(0, 0, 0, 0) 70%, rgba(0, 0, 0, 0.3)),
    linear-gradient(180deg, #6e5428 0%, #6e5428 24%, #44474d 24%, #44474d 64%, #5c1a1a 64%, #5c1a1a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.book-spine b {
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: #ead8aa;
  white-space: nowrap;
}
.book-pages {
  top: 5px; bottom: 5px;
  width: 40px;
  right: -20px;
  transform: rotateY(90deg);
  background: repeating-linear-gradient(90deg, #f6f2e8 0 2px, #e3dbc6 2px 3px);
  border-radius: 0 2px 2px 0;
}

.bc-frame { position: absolute; inset: 13px; border: 1.5px solid rgba(203, 164, 78, 0.85); box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.4); pointer-events: none; }
.bc-frame-inner { position: absolute; inset: 18px; border: 1px solid rgba(203, 164, 78, 0.42); pointer-events: none; }
.bc-sep { position: absolute; left: 13px; right: 13px; height: 2px; background: linear-gradient(90deg, rgba(203, 164, 78, 0.55), #e3c57e 50%, rgba(203, 164, 78, 0.55)); box-shadow: 0 1px 1px rgba(0, 0, 0, 0.35); }
.bc-sep-top { top: 24%; }
.bc-sep-bottom { top: 64%; }
.bc-running {
  position: absolute;
  left: 32px; right: 32px; top: 27px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 7.5px;
  letter-spacing: 0.24em;
  color: #ead8aa;
}
.bc-title-block { position: absolute; left: 26px; right: 26px; top: 108px; text-align: center; }
.bc-diamond { font-size: 11px; color: #cba64e; letter-spacing: 0.3em; margin-bottom: 12px; }
.bc-kicker { font-family: var(--font-mono); font-size: 7.5px; letter-spacing: 0.32em; color: #c79f4a; }
.bc-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 31px;
  line-height: 1.06;
  letter-spacing: -0.015em;
  margin: 12px 0 0;
  background: linear-gradient(180deg, #f2da9c 0%, #dcb868 36%, #a97c2c 58%, #eaca80 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: #d9b463;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.5));
}
.bc-hairline { width: 92px; height: 1px; margin: 16px auto 9px; background: linear-gradient(90deg, rgba(203, 164, 78, 0), rgba(203, 164, 78, 0.7), rgba(203, 164, 78, 0)); }
.bc-powers { font-family: var(--font-mono); font-size: 6.8px; letter-spacing: 0.24em; display: flex; gap: 8px; justify-content: center; }
.bc-powers .p1 { color: #d4a94e; }
.bc-powers .px { color: #8a6a2c; }
.bc-powers .p2 { color: #9da3ab; }
.bc-powers .p3 { color: #c76f66; }
.bc-sub {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 11.5px;
  line-height: 1.45;
  color: #e7d3ac;
  margin: 14px auto 0;
  max-width: 210px;
}
.bc-byline { position: absolute; left: 40px; right: 40px; bottom: 36px; text-align: center; }
.bc-byline .bc-hairline { margin-bottom: 12px; }
.bc-author { font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.22em; color: #f3e6c8; }
.bc-edition { font-family: var(--font-mono); font-size: 7px; letter-spacing: 0.1em; color: #d8c49c; margin-top: 6px; }

.ticklist { list-style: none; margin: 0 0 var(--space-10); padding: 0; }
.ticklist li {
  position: relative;
  padding: 0 0 var(--space-6) 30px;
  color: var(--text-muted);
  font-size: 0.98rem;
}
.ticklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 12px; height: 12px;
  background: var(--gold-bright);
}
.ticklist li:nth-child(2)::before { background: var(--oxblood); }
.ticklist li:nth-child(3)::before { background: var(--slate); }
.ticklist li:nth-child(4)::before { background: var(--gold); }
.ticklist strong { color: var(--ink); }

@media (prefers-reduced-motion: no-preference) {
  body[data-motion="on"] .book3d { animation: book-sway 7s ease-in-out infinite; }
  body[data-motion="on"] .book3d:hover { animation: none; }
}
@keyframes book-sway {
  0%, 100% { transform: rotateY(-27deg) rotateX(3deg) translateY(0); }
  50% { transform: rotateY(-24deg) rotateX(2deg) translateY(-7px); }
}

@media (max-width: 960px) {
  .playbook-feature { grid-template-columns: 1fr; }
}