/* Continuous Mountain Journey Homepage Styles */
#category-landing-view { padding: 0; }
#category-landing-view > .landing-top-bar {
  position: absolute;
  top: 2rem;
  right: 2.5rem;
  width: auto;
  z-index: 20;
}
#category-landing-view > .landing-top-bar a {
  color: #315160;
  text-shadow: none;
  font-weight: 600;
}

/* ==========================================================================
   SECTION 01: Hero / Landing (100vh)
   ========================================================================== */
.homepage-hero {
  position: relative;
  height: 100vh;
  height: 100svh;
  min-height: 520px;
  display: grid;
  place-items: center;
  padding: 6rem 3rem 9rem;
  box-sizing: border-box;
}

.homepage-hero .landing-hero-heading {
  margin: 0;
  max-width: 1280px;
  text-align: center;
}

.homepage-hero .landing-title {
  color: #123547;
  text-shadow: 0 1px 18px rgba(255, 255, 255, 0.65);
  max-width: none;
}

/* Hero Opening Sequence: Cinematic reveal with subtle delays (Section XI) */
.homepage-hero .landing-title-main {
  display: block;
  font-size: clamp(2.6rem, 4.8vw, 4.75rem);
  line-height: 1.12;
  text-wrap: balance;
  font-weight: 700;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(18px);
  animation: heroTitleReveal 0.85s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
  will-change: transform, opacity;
}

.homepage-hero .landing-title-extension {
  display: block;
  margin-top: 1.6rem;
  font-size: clamp(1.1rem, 1.9vw, 1.7rem);
  line-height: 1.52;
  font-weight: 400;
  color: #2b4f61;
  text-wrap: balance;
  opacity: 0;
  transform: translateY(14px);
  animation: heroSubReveal 0.85s cubic-bezier(0.16, 1, 0.3, 1) 0.38s forwards;
  will-change: transform, opacity;
}

.homepage-scroll-hint {
  position: absolute;
  bottom: 3.2rem;
  left: 50%;
  transform: translateX(-50%);
  font: 0.68rem var(--font-mono);
  letter-spacing: 0.22em;
  color: #2a4c5e;
  text-align: center;
  text-decoration: none;
  padding: 12px;
  white-space: nowrap;
  opacity: 0;
  animation: heroHintReveal 0.85s cubic-bezier(0.16, 1, 0.3, 1) 0.65s forwards;
  will-change: transform, opacity;
}

.homepage-scroll-hint span {
  display: block;
  font-size: 1.35rem;
  margin-top: 0.75rem;
  transition: transform 0.25s ease;
}

.homepage-scroll-hint:hover span {
  transform: translateY(4px);
}

@keyframes heroTitleReveal {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes heroSubReveal {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes heroHintReveal {
  to { opacity: 0.92; transform: translateX(-50%) translateY(0); }
}

/* ==========================================================================
   SECTION 02: Introduction Sticky Progression (150vh track) (Section XV - XX)
   ========================================================================== */
.homepage-introduction {
  position: relative;
  background: transparent;
  height: 160vh;
  min-height: 160vh;
  width: 100%;
}

.homepage-intro-sticky-track {
  position: relative;
  width: 100%;
  height: 160vh;
}

.homepage-intro-pin {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100svh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(2rem, 5vw, 5rem) clamp(2rem, 6vw, 7rem);
  box-sizing: border-box;
  overflow: hidden;
}

.homepage-introduction-inner {
  display: grid;
  grid-template-columns: minmax(0, 60fr) minmax(0, 31fr);
  gap: 7%;
  align-items: center;
  width: 100%;
  max-width: clamp(1240px, 86vw, 1780px);
  margin: 0 auto;
}

.homepage-figure-col {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  transform-origin: center center;
  will-change: transform, opacity;
}

/* Figure Enlarged & Responsive (Section XV & XVI) */
.homepage-figure {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(72vh, 660px);
  object-fit: contain;
  border-radius: 0;
  box-shadow: none;
  filter: drop-shadow(0 4px 24px rgba(18, 59, 69, 0.12));
}

.homepage-text-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  will-change: transform, opacity;
}

.homepage-introduction-text {
  font-size: clamp(1.05rem, 1.35vw, 1.32rem);
  line-height: 1.88;
  color: #1a3848;
  text-shadow: 0 1px 10px rgba(255, 255, 255, 0.75);
  margin: 0;
}

/* ==========================================================================
   SECTION 03: Categories Container (Preserved Order, Enhanced Scale)
   ========================================================================== */
.homepage-existing-categories {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
  min-height: 100svh;
  padding: 2.5rem clamp(1.5rem, 4vw, 4rem);
  box-sizing: border-box;
  z-index: 10;
}

/* Responsive adjustments */
@media (min-width: 1800px) {
  .homepage-figure {
    max-height: min(76vh, 760px);
  }
  .homepage-hero .landing-title-main {
    font-size: 5rem;
  }
}

@media (max-width: 1024px) {
  .homepage-introduction-inner {
    grid-template-columns: minmax(0, 58fr) minmax(0, 36fr);
    gap: 4%;
  }
}

@media (max-width: 900px) {
  .homepage-introduction {
    min-height: auto;
  }
  .homepage-intro-pin {
    position: relative;
    height: auto;
    min-height: 85svh;
    padding: 4rem 1.5rem;
  }
  .homepage-introduction-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .homepage-introduction-text {
    max-width: 44rem;
    margin: 0 auto;
    text-align: left;
  }
}

@media (max-width: 768px) {
  #category-landing-view > .landing-top-bar { top: 1.25rem; right: 1.25rem; }
  .homepage-hero { padding: 6rem 1.25rem 8rem; }
  .homepage-hero .landing-title-main { font-size: clamp(2.1rem, 8vw, 3.2rem); }
  .homepage-hero .landing-title-extension > span { display: block; }
  .homepage-existing-categories { padding: 1.5rem 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html:has(#homepage-hero) { scroll-behavior: auto; }
  .homepage-hero .landing-title-main,
  .homepage-hero .landing-title-extension,
  .homepage-scroll-hint {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .homepage-figure-col,
  .homepage-text-col,
  .homepage-figure {
    opacity: 1 !important;
    transform: none !important;
  }
}