/* ── Act I: Opening ── */
#act-opening {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 24px;
}

.opening-epigraph {
  font-family: var(--font-display);
  font-size: 48px;
  line-height: 1.4;
  opacity: 0;
  animation: fadeInUp 2s ease forwards;
  max-width: 700px;
}

.opening-attribution {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 24px;
  opacity: 0;
  animation: fadeInUp 1.5s ease 1s forwards;
}

.opening-question {
  font-family: var(--font-display);
  font-size: 36px;
  line-height: 1.5;
  max-width: 600px;
  margin-top: 80px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.opening-question.is-active {
  opacity: 1;
  transform: translateY(0);
}

.opening-frame {
  font-size: 18px;
  max-width: 520px;
  margin-top: 60px;
  text-align: center;
  line-height: 1.8;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.opening-frame.is-active {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .opening-epigraph { font-size: 32px; }
  .opening-question { font-size: 24px; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Act II: Philosophy — Sticky Diagram ── */
#act-philosophy {
  position: relative;
}

.philosophy-layout {
  display: flex;
  gap: 60px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

.philosophy-sticky {
  flex: 0 0 340px;
  position: sticky;
  top: 20vh;
  height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.philosophy-steps {
  flex: 1;
  padding: 20vh 0;
}

.philosophy-steps .scroll-step {
  min-height: 70vh;
  display: flex;
  align-items: center;
  opacity: 0.25;
  transition: opacity 0.5s ease;
}

.philosophy-steps .scroll-step.is-active {
  opacity: 1;
}

/* Circle diagram */
.circle-diagram {
  position: relative;
  width: 300px;
  height: 200px;
}

.circle-person, .circle-office {
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  top: 30px;
  transition: all 0.8s ease;
}

.circle-person {
  background: rgba(186, 117, 23, 0.25);
  border: 2px solid var(--private);
  left: 40px;
}

.circle-office {
  background: rgba(59, 139, 212, 0.25);
  border: 2px solid var(--public);
  left: 120px;
}

.circle-label {
  position: absolute;
  font-family: var(--font-data);
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  white-space: nowrap;
}

.label-person { bottom: 2px; left: 50px; }
.label-office { bottom: 2px; right: 20px; }

/* Diagram states */
.circle-diagram[data-state="surface"] .circle-office {
  width: 180px; height: 180px; top: 10px; left: 100px;
}
.circle-diagram[data-state="surface"] .circle-person {
  width: 110px; height: 110px; top: 45px; left: 30px;
}
.circle-diagram[data-state="pulse"] .circle-person,
.circle-diagram[data-state="pulse"] .circle-office {
  animation: gentlePulse 2s ease-in-out infinite;
}
.circle-diagram[data-state="gap"] .circle-person {
  left: 10px;
}
.circle-diagram[data-state="gap"] .circle-office {
  left: 170px;
}

@keyframes gentlePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@media (max-width: 768px) {
  .philosophy-layout {
    flex-direction: column;
    gap: 0;
  }
  .philosophy-sticky {
    flex: none;
    position: sticky;
    top: 0;
    height: auto;
    padding: 24px 0;
    background: var(--bg);
    z-index: 10;
  }
  .circle-diagram {
    width: 200px;
    height: 140px;
    margin: 0 auto;
  }
  .circle-person, .circle-office {
    width: 100px;
    height: 100px;
    top: 20px;
  }
  .circle-person { left: 20px; }
  .circle-office { left: 80px; }
  .philosophy-steps {
    padding: 10vh 0;
  }
  .philosophy-steps .scroll-step {
    min-height: 60vh;
  }
}

/* ── Acts III–V: Leader sections — Sticky Radar ── */
.leader-section {
  position: relative;
}

.portrait-hero {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  overflow: hidden;
  margin-bottom: 60px;
}

.portrait-hero img {
  width: 100%;
  max-height: 85vh;
  object-fit: cover;
  object-position: center top;
  display: block;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.portrait-hero img.is-visible {
  opacity: 1;
}

.portrait-caption {
  position: absolute;
  bottom: 24px;
  left: 24px;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(13, 13, 13, 0.7);
  padding: 8px 12px;
}

.caption-leader {
  color: var(--text);
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.leader-layout {
  display: flex;
  gap: 60px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

.leader-sticky {
  flex: 0 0 420px;
  position: sticky;
  top: 15vh;
  height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.leader-radar-wrap {
  width: 400px;
  height: 400px;
  position: relative;
}

.leader-word {
  font-family: var(--font-display);
  font-size: 36px;
  text-align: center;
  margin-top: 20px;
  opacity: 0;
  transition: opacity 0.8s ease;
  letter-spacing: 4px;
  text-transform: uppercase;
}

.leader-word.is-visible {
  opacity: 1;
}

.leader-word[data-tone="coherent"] { color: var(--text-dim); }
.leader-word[data-tone="fractured"] { color: var(--coral); }
.leader-word[data-tone="calculated"] { color: var(--private); }

.nagel-badge-inline {
  font-family: var(--font-data);
  font-size: 13px;
  margin-top: 12px;
  text-align: center;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.nagel-badge-inline.is-visible { opacity: 1; }

.nagel-badge-inline .badge-score {
  font-size: 28px;
  font-weight: bold;
}
.nagel-badge-inline .badge-label {
  color: var(--text-dim);
  margin-left: 8px;
}

.leader-steps {
  flex: 1;
  padding: 10vh 0 20vh;
}

.leader-steps .scroll-step {
  min-height: 75vh;
  display: flex;
  align-items: center;
  opacity: 0.25;
  transition: opacity 0.5s ease;
}

.leader-steps .scroll-step.is-active {
  opacity: 1;
}

.leader-steps .scroll-step .step-content {
  max-width: 500px;
}

/* Inline stat callouts */
.stat-callout {
  font-family: var(--font-data);
  font-size: 14px;
  padding: 12px 16px;
  margin: 16px 0;
  border-left: 3px solid var(--coral);
  background: rgba(216, 90, 48, 0.06);
}

.stat-callout.ns {
  border-left-color: var(--text-dim);
  background: rgba(136, 136, 128, 0.06);
}

@media (max-width: 768px) {
  .leader-layout {
    flex-direction: column;
    gap: 0;
  }
  .leader-sticky {
    flex: none;
    position: sticky;
    top: 0;
    height: auto;
    padding: 16px 0;
    background: var(--bg);
    z-index: 10;
  }
  .leader-radar-wrap {
    width: 220px;
    height: 220px;
    margin: 0 auto;
  }
  .leader-word {
    font-size: 24px;
    margin-top: 8px;
  }
  .nagel-badge-inline .badge-score {
    font-size: 20px;
  }
  .nagel-badge-inline {
    font-size: 11px;
    margin-top: 4px;
  }
  .leader-steps {
    padding: 5vh 0 15vh;
  }
  .leader-steps .scroll-step {
    min-height: 60vh;
  }
}

/* ── Act VI: Comparative ── */
#act-conclusion {
  max-width: 1000px;
  margin: 0 auto;
  padding: 80px 24px;
}

.spectrum-cards {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 60px 0;
}

.spectrum-card {
  width: 280px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.spectrum-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.spectrum-card[data-gap="small"]  { border-left: 3px solid var(--text-dim); }
.spectrum-card[data-gap="medium"] { border-left: 3px solid var(--private); }
.spectrum-card[data-gap="large"]  { border-left: 3px solid var(--coral); }

.spectrum-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.nagel-badge {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.badge-name {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--text);
}

.badge-score {
  font-family: var(--font-data);
  font-size: 32px;
  font-weight: bold;
}

.badge-score[data-level="small"]  { color: var(--text-dim); }
.badge-score[data-level="medium"] { color: var(--private); }
.badge-score[data-level="large"]  { color: var(--coral); }

.badge-label {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.badge-word {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-top: 4px;
}

/* ── CTA buttons ── */
.cta-row {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 60px 0;
}

.cta-button {
  font-family: var(--font-data);
  font-size: 14px;
  padding: 14px 28px;
  border: 1px solid var(--text-dim);
  color: var(--text);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.3s, background 0.3s;
  letter-spacing: 0.5px;
}

.cta-button:hover {
  border-color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

/* ── Navigation dots ── */
.nav-dots {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 100;
}

.nav-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(136, 136, 128, 0.3);
  border: 1px solid var(--text-dim);
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
  position: relative;
}

.nav-dot:hover {
  transform: scale(1.3);
}

.nav-dot.is-active {
  background: var(--text);
  border-color: var(--text);
}

.nav-dot-label {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-data);
  font-size: 10px;
  color: var(--text-dim);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.nav-dot:hover .nav-dot-label {
  opacity: 1;
}

@media (max-width: 768px) {
  .nav-dots { display: none; }
}

/* ── Connectors between dots ── */
.nav-dots::before {
  content: '';
  position: absolute;
  left: 4.5px;
  top: 5px;
  bottom: 5px;
  width: 1px;
  background: rgba(136, 136, 128, 0.2);
  z-index: -1;
}

/* ── Screen reader only ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}