/* chapters.css: Six chapter-type layouts for the monograph design */

/* ---- Shared chapter base ---- */
.chapter {
  position: relative;
  overflow: hidden;
}

/* ---- Type 1: Cinematic Hero ---- */
.chapter--hero {
  min-height: auto;
  display: flex;
  align-items: flex-start;
  padding-top: clamp(8rem, 18vh, 14rem);
  padding-bottom: clamp(4rem, 8vh, 8rem);
  padding-left: var(--side-pad);
  padding-right: var(--side-pad);
}

.chapter--hero .chapter__content {
  position: relative;
  z-index: 1;
}

.chapter--hero .chapter__name {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: var(--text);
}

.chapter--hero .chapter__tagline {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  color: var(--text-muted);
  margin-top: var(--space-md);
  max-width: 480px;
}

.chapter--hero .chapter__portrait {
  width: clamp(120px, 18vw, 200px);
  height: auto;
  filter: grayscale(100%) contrast(1.1);
  margin-bottom: var(--space-md);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: scrollPulse 3s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

/* ---- Type 2: Typographic Spread ---- */
.chapter--typo-spread {
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(4rem, 10vh, 8rem) var(--side-pad);
  text-align: center;
}

.chapter--typo-spread .chapter__content {
  max-width: 900px;
  position: relative;
  z-index: 1;
}

.chapter--typo-spread .chapter__quote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 300;
  font-style: italic;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--text);
}

.chapter--typo-spread .chapter__attribution {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: var(--space-md);
}

.chapter--typo-spread .chapter__heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--text);
}

.chapter--typo-spread .chapter__text {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: var(--space-md) auto 0;
}

/* ---- Type 3: Media Spread ---- */
.chapter--media-spread {
  min-height: 60vh;
  position: relative;
}

.chapter--media-spread .chapter__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.chapter--media-spread .chapter__media img,
.chapter--media-spread .chapter__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.chapter--media-spread .chapter__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0) 50%);
}

.chapter--media-spread .chapter__overlay {
  position: absolute;
  bottom: var(--space-lg);
  left: var(--side-pad);
  z-index: 1;
}

.chapter--media-spread .chapter__overlay-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
}

.chapter--media-spread .chapter__overlay-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  color: #FFFFFF;
  margin-top: var(--space-xs);
}

@media (max-width: 768px) {
  .chapter--media-spread {
    min-height: 50vh;
  }
}

/* ---- Type 4: Card Grid ---- */
.chapter--cards {
  padding: var(--space-xl) var(--side-pad);
}

.chapter__section-label {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.chapter--cards .chapter__heading {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

/* Even 2-column grid (balanced for 4 pillars) */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

/* Asymmetric: 1 large + 2 stacked small */
.card-grid--asymmetric {
  grid-template-columns: 3fr 2fr;
  grid-template-rows: auto auto;
}

.card-grid--asymmetric .card:first-child {
  grid-row: 1 / 3;
}

@media (max-width: 768px) {
  .card-grid,
  .card-grid--asymmetric {
    grid-template-columns: 1fr;
  }

  .card-grid--asymmetric .card:first-child {
    grid-row: auto;
  }
}

@media (max-width: 1024px) and (min-width: 769px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

/* ---- Type 5: Split Composition ---- */
.chapter--split {
  min-height: auto;
  display: grid;
  grid-template-columns: 40fr 60fr;
}

.chapter--split-reverse {
  grid-template-columns: 60fr 40fr;
}

.chapter--split .chapter__text-side {
  padding: clamp(4rem, 10vh, 8rem) var(--side-pad) var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.chapter--split .chapter__text-inner {
  max-width: 480px;
}

.chapter--split .chapter__image-side {
  overflow: hidden;
}

.chapter--split .chapter__image-side img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.chapter--split-reverse .chapter__image-side {
  order: -1;
}

@media (max-width: 768px) {
  .chapter--split,
  .chapter--split-reverse {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .chapter--split .chapter__image-side,
  .chapter--split-reverse .chapter__image-side {
    order: -1;
    max-height: 50vh;
  }

  .chapter--split .chapter__text-side {
    padding: var(--space-lg) var(--side-pad);
  }
}

/* ---- Type 6: Data Moment ---- */
.chapter--data {
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg) var(--side-pad);
}

.chapter--data .chapter__content {
  width: 100%;
  max-width: var(--wide-width);
}