/* Section composition — nav, hero, synopsis, themes, quotes, scenes, visuals, footer */

/* ─── Navigation ─── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition:
    background var(--dur-med) var(--ease-out-expo),
    border-color var(--dur-med) var(--ease-out-expo),
    backdrop-filter var(--dur-med) var(--ease-out-expo);
}

.site-header.is-scrolled {
  background: var(--nav-bg);
  border-bottom-color: var(--border-subtle);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - var(--space-gutter) * 2, var(--content-max));
  margin-inline: auto;
  gap: var(--space-4);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--flare);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.nav-brand:hover {
  color: var(--ice);
}

.nav-mark {
  width: 1.35rem;
  height: 1.35rem;
  flex-shrink: 0;
}

.nav-list {
  display: none;
  align-items: center;
  gap: clamp(0.75rem, 0.5rem + 1vw, 1.5rem);
}

.nav-item-lang {
  display: flex;
  align-items: center;
  margin-right: clamp(0.15rem, 0.1rem + 0.4vw, 0.5rem);
}

.site-lang {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 0.12rem;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  background: rgba(12, 15, 24, 0.45);
  box-shadow: inset 0 0 0 1px rgba(142, 182, 217, 0.04);
}

.site-lang-btn {
  min-width: 2.15rem;
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ghost);
  line-height: 1.2;
  transition:
    color var(--dur-fast) var(--ease-out-expo),
    background-color var(--dur-fast) var(--ease-out-expo),
    box-shadow var(--dur-fast) var(--ease-out-expo);
}

.site-lang-btn[lang="zh-Hans"] {
  font-family: var(--font-body-zh);
  letter-spacing: 0.06em;
  text-transform: none;
  font-weight: 400;
}

.site-lang-btn:hover {
  color: var(--flare);
}

.site-lang-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.site-lang-btn.is-active {
  color: var(--void);
  background: linear-gradient(135deg, var(--ice) 0%, #a8c8e4 100%);
  box-shadow: 0 0 14px rgba(142, 182, 217, 0.25);
}

.site-lang-divider {
  width: 1px;
  height: 0.7rem;
  background: var(--border-soft);
  opacity: 0.55;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: var(--space-2) 0;
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ghost);
  transition: color var(--dur-fast) var(--ease-out-expo);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--ice);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur-med) var(--ease-out-expo);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--flare);
}

.nav-link.is-active::after,
.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.nav-toggle:hover {
  border-color: var(--border-soft);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--mist);
  transition: transform var(--dur-med) var(--ease-out-expo), opacity var(--dur-fast);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (min-width: 860px) {
  .nav-list {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }
}

/* Mobile nav drawer */
.nav-drawer {
  position: fixed;
  inset: var(--nav-height) 0 auto 0;
  z-index: 999;
  display: none;
  padding: var(--space-5) var(--space-gutter) var(--space-6);
  background: rgba(5, 6, 10, 0.94);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-drawer.is-open {
  display: block;
}

.nav-drawer .nav-list {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.nav-drawer .nav-item-lang {
  margin: 0 0 var(--space-3);
}

.nav-drawer .nav-link {
  font-size: var(--text-sm);
  padding: var(--space-3) 0;
}

@media (min-width: 860px) {
  .nav-drawer {
    display: none !important;
  }
}

/* ─── Shared media frames (remote photos) ─── */
.media-frame {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--ink);
}

.media-img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.media-shade {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(5, 6, 10, 0.15) 0%, transparent 35%, rgba(5, 6, 10, 0.55) 100%),
    radial-gradient(ellipse 80% 70% at 50% 40%, transparent 40%, rgba(5, 6, 10, 0.35) 100%);
}

.media-shade--soft {
  background: linear-gradient(180deg, rgba(5, 6, 10, 0.12) 0%, transparent 45%, rgba(5, 6, 10, 0.35) 100%);
}

.media-shade--caption {
  background: linear-gradient(transparent 35%, rgba(5, 6, 10, 0.55) 70%, rgba(5, 6, 10, 0.92) 100%);
}

/* ─── Hero ─── */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + var(--space-8)) var(--space-gutter) var(--space-9);
  overflow: hidden;
}

.hero-photo {
  position: absolute;
  /* Slight bleed so parallax never reveals empty edges */
  inset: -6% 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.32;
  overflow: hidden;
  will-change: transform;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center 40%;
  filter: saturate(0.7) brightness(0.45);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-glow {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    radial-gradient(ellipse 50% 40% at 50% 42%, rgba(142, 182, 217, 0.14), transparent 70%),
    radial-gradient(ellipse 30% 20% at 50% 55%, rgba(212, 165, 116, 0.08), transparent 60%),
    /* Center scrim keeps title lockup readable over the photo layer */
    radial-gradient(ellipse 70% 55% at 50% 48%, rgba(5, 6, 10, 0.55), transparent 72%),
    linear-gradient(180deg, rgba(5, 6, 10, 0.55) 0%, rgba(5, 6, 10, 0.2) 35%, var(--void) 100%);
  will-change: transform;
}

.hero-ring {
  /* Center with inset offsets so transform stays free for breathe animation */
  position: absolute;
  left: 50%;
  top: 46%;
  width: min(72vw, 34rem);
  height: min(72vw, 34rem);
  margin-left: calc(min(72vw, 34rem) / -2);
  margin-top: calc(min(72vw, 34rem) / -2);
  border-radius: 50%;
  border: 1px solid rgba(142, 182, 217, 0.12);
  box-shadow:
    0 0 80px rgba(142, 182, 217, 0.06) inset,
    0 0 120px rgba(212, 165, 116, 0.04);
  z-index: 2;
  pointer-events: none;
}

.hero-ring::before {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px solid rgba(212, 165, 116, 0.1);
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 52rem;
  will-change: transform;
}

.hero-kicker {
  display: block;
  margin-bottom: var(--space-5);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-kicker);
  text-transform: uppercase;
  color: var(--ice);
}

.hero-title {
  margin-bottom: var(--space-5);
  font-size: var(--text-hero);
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--flare);
  text-shadow: 0 0 60px rgba(142, 182, 217, 0.25);
}

.hero-title span {
  display: block;
}

.hero-tagline {
  margin: 0 auto var(--space-7);
  max-width: 28rem;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-style: italic;
  font-weight: 400;
  line-height: var(--leading-relaxed);
  color: var(--mist);
  letter-spacing: 0.02em;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3) var(--space-5);
  margin-bottom: var(--space-8);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ghost);
}

.hero-meta span {
  position: relative;
}

.hero-meta span:not(:last-child)::after {
  content: "·";
  position: absolute;
  right: calc(var(--space-5) * -0.55);
  color: var(--ice);
  opacity: 0.5;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.85rem 1.6rem;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  color: var(--flare);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: rgba(12, 15, 24, 0.4);
  transition:
    border-color var(--dur-med) var(--ease-out-expo),
    background var(--dur-med) var(--ease-out-expo),
    transform var(--dur-med) var(--ease-out-expo),
    box-shadow var(--dur-med) var(--ease-out-expo);
}

.hero-cta:hover {
  border-color: var(--ice);
  background: var(--ice-dim);
  box-shadow: var(--shadow-glow-ice);
  transform: translateY(-2px);
  color: var(--flare);
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--ghost);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero-scroll-line {
  width: 1px;
  height: 2.5rem;
  background: linear-gradient(180deg, var(--ice), transparent);
  opacity: 0.6;
}

/* ─── Synopsis ─── */
.synopsis-grid {
  display: grid;
  gap: var(--space-7);
  align-items: center;
}

@media (min-width: 900px) {
  .synopsis-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-9);
  }
}

.synopsis-copy p {
  color: var(--mist);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

.synopsis-copy p + p {
  margin-top: var(--space-4);
}

.synopsis-panel {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  background: var(--ink);
  box-shadow: var(--shadow-soft);
}

.synopsis-media {
  aspect-ratio: 4 / 3;
  min-height: 18rem;
}

.synopsis-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: var(--space-5);
  background: linear-gradient(transparent, rgba(5, 6, 10, 0.92));
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ghost);
}

/* ─── Themes ─── */
.themes-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-7);
}

@media (min-width: 640px) {
  .themes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1000px) {
  .themes-grid {
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: auto auto;
  }

  .theme-card:nth-child(1) {
    grid-column: 1 / 3;
  }

  .theme-card:nth-child(2) {
    grid-column: 3 / 5;
  }

  .theme-card:nth-child(3) {
    grid-column: 5 / 7;
  }

  .theme-card:nth-child(4) {
    grid-column: 2 / 4;
  }

  .theme-card:nth-child(5) {
    grid-column: 4 / 6;
  }
}

.theme-card {
  position: relative;
  padding: var(--space-6);
  background: linear-gradient(160deg, var(--ink-elevated), var(--ink));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition:
    transform var(--dur-med) var(--ease-out-expo),
    border-color var(--dur-med) var(--ease-out-expo),
    box-shadow var(--dur-med) var(--ease-out-expo);
}

.theme-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-soft);
  box-shadow: var(--shadow-glow-ice);
}

.theme-card[data-accent="ember"]:hover {
  box-shadow: var(--shadow-glow-ember);
  border-color: rgba(212, 165, 116, 0.28);
}

.theme-index {
  display: block;
  margin-bottom: var(--space-4);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--ghost);
}

.theme-card h3 {
  margin-bottom: var(--space-3);
  font-size: var(--text-lg);
  letter-spacing: 0.08em;
}

.theme-card p {
  color: var(--ghost);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin: 0;
}

/* ─── Quotes ─── */
.quotes {
  background:
    radial-gradient(ellipse 70% 50% at 50% 50%, rgba(142, 182, 217, 0.06), transparent 70%);
}

.quote-stage {
  position: relative;
  min-height: 18rem;
  display: grid;
  place-items: center;
  margin-top: var(--space-7);
  text-align: center;
}

.quote-slide {
  grid-area: 1 / 1;
  max-width: 44rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition:
    opacity var(--dur-quote) var(--ease-out-expo),
    transform var(--dur-quote) var(--ease-out-expo),
    visibility 0s linear var(--dur-quote);
  pointer-events: none;
}

.quote-slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition:
    opacity var(--dur-quote) var(--ease-out-expo),
    transform var(--dur-quote) var(--ease-out-expo),
    visibility 0s linear 0s;
  pointer-events: auto;
}

.quote-text {
  margin: 0 0 var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-quote);
  font-weight: 400;
  font-style: italic;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--flare);
}

html[data-lang="zh"] .quote-text {
  margin-bottom: var(--space-4);
}

.quote-text::before {
  content: "“";
  color: var(--ember);
  margin-right: 0.1em;
}

.quote-text::after {
  content: "”";
  color: var(--ember);
  margin-left: 0.05em;
}

/* Chinese translation under original dialogue (zh mode only) */
.quote-zh {
  margin: 0 0 var(--space-6);
  font-family: var(--font-body-zh);
  font-size: clamp(1rem, 0.92rem + 0.45vw, 1.25rem);
  font-weight: 300;
  font-style: normal;
  line-height: 1.75;
  letter-spacing: 0.08em;
  color: #ffffff;
}

.quote-zh[hidden] {
  display: none !important;
}

.quote-zh::before {
  content: "“";
  color: var(--ember);
  margin-right: 0.1em;
}

.quote-zh::after {
  content: "”";
  color: var(--ember);
  margin-left: 0.05em;
}

html[data-lang="zh"] .quote-zh:not([hidden]) {
  display: block;
}

.quote-attr {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-style: normal;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ice);
}

.quote-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-7);
}

.quote-dot {
  /* Visual 9px core; 44px hit target for touch/keyboard comfort */
  position: relative;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  opacity: 0.4;
  transition:
    opacity var(--dur-med) var(--ease-out-expo),
    transform var(--dur-med) var(--ease-out-expo),
    background var(--dur-med) var(--ease-out-expo);
}

.quote-dot::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0.55rem;
  height: 0.55rem;
  margin: -0.275rem 0 0 -0.275rem;
  border-radius: 50%;
  background: var(--ghost);
  transition:
    background var(--dur-med) var(--ease-out-expo),
    transform var(--dur-med) var(--ease-out-expo);
}

.quote-dot.is-active,
.quote-dot:hover {
  opacity: 1;
}

.quote-dot.is-active::before,
.quote-dot:hover::before {
  background: var(--ice);
  transform: scale(1.25);
}

/* ─── Scenes ─── */
.scenes-list {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-7);
}

@media (min-width: 800px) {
  .scenes-list {
    grid-template-columns: 1fr 1fr;
  }

  .scene-card:first-child {
    grid-column: 1 / -1;
  }
}

.scene-card {
  position: relative;
  display: grid;
  gap: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  background: var(--ink);
  transition:
    transform var(--dur-med) var(--ease-out-expo),
    border-color var(--dur-med) var(--ease-out-expo),
    box-shadow var(--dur-med) var(--ease-out-expo);
}

@media (min-width: 800px) {
  .scene-card:first-child {
    grid-template-columns: 1.2fr 1fr;
    min-height: 18rem;
  }

  .scene-card:first-child .scene-visual {
    min-height: 100%;
    height: 100%;
  }
}

.scene-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-soft);
  box-shadow: var(--shadow-soft), var(--shadow-glow-ice);
}

.scene-visual {
  position: relative;
  min-height: 12rem;
  overflow: hidden;
  background: var(--ink);
}

.scene-media {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 12rem;
  /* Absolute children (.media-img) need an explicit box; avoid height:100% alone */
  height: auto;
}

@media (min-width: 800px) {
  .scene-card:first-child .scene-media {
    position: absolute;
    inset: 0;
    aspect-ratio: auto;
    min-height: 0;
    height: 100%;
  }
}

.scene-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scene-label {
  display: block;
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ember);
}

.scene-body h3 {
  margin-bottom: var(--space-3);
  font-size: var(--text-lg);
}

.scene-body p {
  margin: 0;
  color: var(--ghost);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* ─── Visuals gallery ─── */
.visuals-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-7);
  grid-template-columns: 1fr;
}

@media (min-width: 560px) {
  .visuals-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .visuals-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .visual-card:nth-child(1),
  .visual-card:nth-child(6) {
    grid-row: span 1;
  }
}

.visual-card {
  position: relative;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  background: var(--ink);
  aspect-ratio: 4 / 5;
  transition:
    transform var(--dur-med) var(--ease-out-expo),
    border-color var(--dur-med) var(--ease-out-expo),
    box-shadow var(--dur-med) var(--ease-out-expo);
}

.visual-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-soft);
  box-shadow: var(--shadow-glow-ice);
}

.visual-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.visual-meta {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: var(--space-5);
  background: linear-gradient(transparent, rgba(5, 6, 10, 0.92) 55%);
}

.visual-meta h3 {
  margin-bottom: var(--space-2);
  font-size: var(--text-md);
  letter-spacing: 0.08em;
}

.visual-meta p {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--ghost);
  line-height: 1.5;
}

/* ─── Footer ─── */
.site-footer {
  position: relative;
  padding: var(--space-8) 0 var(--space-7);
  border-top: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, transparent, rgba(12, 15, 24, 0.6));
}

.footer-inner {
  display: grid;
  gap: var(--space-6);
  text-align: center;
}

.footer-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--flare);
}

.footer-credit {
  color: var(--ghost);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  max-width: 36rem;
  margin-inline: auto;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-3) var(--space-5);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ghost);
  text-align: center;
}

.footer-meta a {
  color: var(--ghost);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-med) var(--ease-out-expo),
    border-color var(--dur-med) var(--ease-out-expo);
}

.footer-meta a:hover {
  color: var(--ice);
  border-bottom-color: rgba(142, 182, 217, 0.45);
}