/* ===================== V10.8 Strategy chapter split views ===================== */
.strategy-chapter-view {
  display: none;
}

.strategy-chapter-view.active {
  display: block;
}

.strategy-chapter-view[aria-hidden="true"] {
  display: none !important;
}

.strategy-chapter-handoff {
  padding: 88px 28px 104px;
  border-top: 1px solid rgba(26, 26, 46, .08);
}

.strategy-chapter-handoff-next {
  background:
    linear-gradient(90deg, rgba(212, 175, 55, .08), transparent 38%),
    #fafaf7;
}

.strategy-chapter-handoff-track {
  display: grid;
  grid-template-columns: 18px minmax(80px, 1fr) 38px 18px;
  align-items: center;
  max-width: 760px;
  margin: 0 auto 28px;
}

.strategy-chapter-handoff-track .track-dot {
  width: 14px;
  height: 14px;
  border: 2px solid #d4af37;
  border-radius: 50%;
  background: #fff;
}

.strategy-chapter-handoff-track .track-dot.active {
  background: #d4af37;
}

.strategy-chapter-handoff-track .track-line {
  height: 1px;
  background: linear-gradient(90deg, #d4af37, rgba(212, 175, 55, .25));
}

.strategy-chapter-handoff-track .track-arrow {
  color: #d4af37;
  font-size: 2rem;
  text-align: center;
}

.strategy-chapter-handoff-copy {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}

.strategy-chapter-handoff-copy h2,
.strategy-agent-copy h2 {
  margin: 12px 0 18px;
  color: #1a1a2e;
  font-size: clamp(2rem, 3.4vw, 3.4rem);
  line-height: 1.22;
  letter-spacing: -.035em;
}

.strategy-chapter-handoff-copy > p:not(.strategy-roadmap-kicker) {
  max-width: 760px;
  margin: 0 auto 32px;
  color: #5d6075;
  font-size: 1.05rem;
  line-height: 1.85;
}

.strategy-chapter-flip {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border: 1px solid rgba(212, 175, 55, .42);
  border-radius: 18px;
  background: #1a1a2e;
  color: #fff;
  text-align: left;
  cursor: pointer;
  box-shadow: 0 18px 45px rgba(26, 26, 46, .15);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.strategy-chapter-flip:hover,
.strategy-chapter-flip:focus-visible {
  transform: translateY(-3px);
  border-color: #d4af37;
  box-shadow: 0 24px 52px rgba(26, 26, 46, .2);
  outline: none;
}

.strategy-chapter-flip span {
  display: grid;
  gap: 6px;
}

.strategy-chapter-flip small {
  color: #d4af37;
  font-size: .78rem;
  font-weight: 760;
  letter-spacing: .12em;
}

.strategy-chapter-flip strong {
  color: #fff;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  line-height: 1.4;
}

.strategy-chapter-flip b {
  color: #d4af37;
  font-size: 2rem;
  font-weight: 400;
}

.strategy-agent-handoff {
  background:
    radial-gradient(circle at 82% 18%, rgba(212, 175, 55, .12), transparent 32%),
    #f4f1e9;
}

.strategy-agent-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  gap: 42px;
  align-items: center;
}

.strategy-agent-copy > p:not(.strategy-roadmap-kicker):not(.strategy-agent-status) {
  color: #5d6075;
  font-size: 1.02rem;
  line-height: 1.85;
}

.strategy-agent-question-list {
  display: grid;
  gap: 10px;
  margin: 26px 0;
}

.strategy-agent-question-list span {
  padding: 13px 16px;
  border-left: 3px solid #d4af37;
  background: rgba(255, 255, 255, .72);
  color: #313348;
  border-radius: 0 12px 12px 0;
  font-size: .92rem;
  line-height: 1.55;
}

.strategy-agent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.strategy-interaction-btn {
  display: none;
}

.strategy-interaction-btn.visible {
  display: inline-flex;
}

.strategy-interaction-placeholder {
  display: inline-flex;
  opacity: .68;
  cursor: not-allowed;
}

.strategy-agent-status {
  margin-top: 14px;
  color: #77798b;
  font-size: .82rem;
  line-height: 1.65;
}

.strategy-agent-status code {
  color: #1a1a2e;
  background: rgba(26, 26, 46, .07);
  padding: 2px 6px;
  border-radius: 5px;
}

.strategy-agent-terminal {
  overflow: hidden;
  border: 1px solid rgba(26, 26, 46, .12);
  border-radius: 18px;
  background: #17182b;
  box-shadow: 0 24px 55px rgba(26, 26, 46, .18);
}

.strategy-agent-terminal-head {
  height: 48px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #24263c;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.strategy-agent-terminal-head > span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255,255,255,.28);
}

.strategy-agent-terminal-head strong {
  margin-left: 8px;
  color: rgba(255,255,255,.78);
  font-size: .82rem;
  font-weight: 600;
}

.strategy-agent-terminal-body {
  display: grid;
  gap: 16px;
  padding: 28px;
}

.strategy-agent-terminal-body p {
  margin: 0;
  padding: 14px 16px;
  border-radius: 14px;
  font-size: .9rem;
  line-height: 1.7;
}

.strategy-agent-terminal-body .user {
  justify-self: end;
  max-width: 88%;
  background: rgba(212, 175, 55, .14);
  color: #f7f0d4;
  border: 1px solid rgba(212, 175, 55, .22);
}

.strategy-agent-terminal-body .agent {
  justify-self: start;
  max-width: 94%;
  background: rgba(255,255,255,.07);
  color: rgba(255,255,255,.84);
  border: 1px solid rgba(255,255,255,.08);
}

.strategy-agent-terminal-body .hint {
  padding: 0;
  color: #d4af37;
  background: none;
  border: 0;
  font-size: .78rem;
  letter-spacing: .06em;
}

/* ===================== V10.8 Positioning triangle gate ===================== */
.ch2-positioning-gate {
  margin-top: 34px;
  padding: 34px;
  display: grid;
  grid-template-columns: minmax(250px, .72fr) minmax(520px, 1.28fr);
  gap: 34px;
  align-items: center;
  background: linear-gradient(145deg, #fff, #faf8f2);
  border: 1px solid rgba(26, 26, 46, .10);
  border-radius: 22px;
  box-shadow: 0 18px 48px rgba(26, 26, 46, .07);
}

.ch2-positioning-gate-copy h3 {
  margin: 14px 0 16px;
  color: #1a1a2e;
  font-size: clamp(1.55rem, 2.2vw, 2.2rem);
  line-height: 1.35;
}

.ch2-positioning-gate-copy > p {
  margin: 0;
  color: #626477;
  line-height: 1.85;
}

.ch2-positioning-gate-result {
  margin-top: 24px;
  padding: 16px 18px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  border-left: 3px solid #d4af37;
  background: rgba(212, 175, 55, .08);
  border-radius: 0 12px 12px 0;
}

.ch2-positioning-gate-result strong {
  color: #1a1a2e;
}

.ch2-positioning-gate-result span {
  color: #77798b;
  font-size: .88rem;
}

.ch2-positioning-triangle {
  position: relative;
  width: min(100%, 720px);
  aspect-ratio: 720 / 610;
  margin: 0 auto;
}

.ch2-positioning-triangle > svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.ch2-positioning-triangle polygon,
.ch2-positioning-triangle line {
  fill: none;
  stroke: rgba(26, 26, 46, .22);
  stroke-width: 2;
}

.ch2-positioning-triangle circle {
  fill: #fff;
  stroke: rgba(212, 175, 55, .72);
  stroke-width: 3;
  filter: drop-shadow(0 10px 24px rgba(26, 26, 46, .10));
}

.gate-card,
.gate-center {
  position: absolute;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  text-align: center;
}

.gate-card {
  width: 190px;
  min-height: 118px;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid rgba(26, 26, 46, .12);
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(26, 26, 46, .08);
}

.gate-card span {
  color: #d4af37;
  font-size: .7rem;
  font-weight: 780;
  letter-spacing: .12em;
}

.gate-card strong {
  color: #1a1a2e;
  font-size: 1.05rem;
  line-height: 1.35;
}

.gate-card small {
  color: #747689;
  font-size: .76rem;
  line-height: 1.55;
}

.gate-mind { left: 50%; top: 10%; }
.gate-internal { left: 15%; top: 84%; }
.gate-external { left: 85%; top: 84%; }

.gate-center {
  left: 50%;
  top: 51%;
  width: 175px;
  height: 175px;
  padding: 22px;
  border-radius: 50%;
  background: #fff;
}

.gate-center span {
  color: #888a9a;
  font-size: .72rem;
  letter-spacing: .1em;
}

.gate-center strong {
  color: #1a1a2e;
  font-size: 1.25rem;
  line-height: 1.25;
}

.gate-center small {
  color: #d4af37;
  font-size: .75rem;
  font-weight: 760;
}

@media (max-width: 980px) {
  .strategy-agent-grid,
  .ch2-positioning-gate {
    grid-template-columns: 1fr;
  }

  .strategy-agent-terminal {
    max-width: 720px;
  }

  .ch2-positioning-triangle {
    width: min(100%, 680px);
  }
}

@media (max-width: 720px) {
  .strategy-chapter-handoff {
    padding: 68px 18px 78px;
  }

  .strategy-chapter-flip {
    padding: 19px 18px;
  }

  .strategy-agent-terminal-body {
    padding: 20px;
  }

  .ch2-positioning-gate {
    padding: 24px 18px;
  }

  .ch2-positioning-triangle {
    aspect-ratio: auto;
    min-height: 540px;
  }

  .ch2-positioning-triangle > svg {
    display: none;
  }

  .gate-card,
  .gate-center {
    position: static;
    transform: none;
    width: 100%;
    min-height: auto;
    margin-bottom: 12px;
    border-radius: 14px;
  }

  .gate-center {
    height: auto;
    padding: 20px;
    border: 1px solid rgba(212, 175, 55, .55);
  }

  .ch2-positioning-triangle {
    display: flex;
    flex-direction: column;
  }

  .gate-mind { order: 1; }
  .gate-internal { order: 2; }
  .gate-external { order: 3; }
  .gate-center { order: 4; }
}

@media (prefers-reduced-motion: reduce) {
  .strategy-chapter-flip {
    transition: none;
  }
}