/* A single painted world, from the opening valley to the last mountain. */
:root {
  --bg-paper-card: #f5f7f2;
  --bg-paper-scroll: #edf1e9;
  --journey-art-filter: saturate(0.83);
  --journey-background-opacity: 0.12;
}
[data-theme="dark"] {
  --bg-paper-card: #1a2024;
  --bg-paper-scroll: #181d21;
  --journey-art-filter: brightness(0.64) saturate(0.55);
  --journey-background-opacity: 0.09;
}
html { scroll-padding-top: 6rem; }
.intro-quote-source {
  display: block;
  margin-top: 0.9rem;
  color: var(--ink-light);
  font-size: 0.8rem;
  font-style: normal;
  line-height: 1.7;
}
.journey-atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.journey-atmosphere img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.065;
  filter: var(--journey-art-filter);
}
.section-container { isolation: isolate; }
#s2, #s3, #s6 {
  background: transparent;
  border: 0;
}
.section-landscape {
  position: absolute;
  left: calc(50% - 50vw);
  top: 0;
  width: 100vw;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  opacity: var(--journey-background-opacity);
  mask-image: linear-gradient(transparent, #000 25%, #000 70%, transparent);
  -webkit-mask-image: linear-gradient(transparent, #000 25%, #000 70%, transparent);
}
.journey-art {
  position: absolute;
  inset: -72px 0;
  display: block;
  width: 100%;
  height: calc(100% + 144px);
  max-width: none;
  object-fit: cover;
  filter: var(--journey-art-filter);
  transform: translate3d(0, var(--parallax-y, 0px), 0) scale(1.015);
}
.journey-art.is-moving { will-change: transform; }
.art-window {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 3 / 2;
  background: var(--bg-paper);
}
.art-window .journey-art {
  inset: -16px 0;
  height: calc(100% + 32px);
}
.intro-art-frame {
  border: 0;
  padding: 0;
  background: transparent;
  box-shadow: none;
}
.intro-art-frame::before { display: none; }
.intro-art-frame .art-window {
  aspect-ratio: 4 / 5;
  mask-image: radial-gradient(ellipse 75% 72%, #000 43%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 75% 72%, #000 43%, transparent 75%);
}
.intro-art-frame .journey-art { object-position: 40% center; }
.intro-art-seal { bottom: 8%; right: 8%; }
.sect-weapon-box {
  width: calc(100% + 2.8rem);
  height: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  flex-shrink: 0;
}
.sect-weapon-box .art-window {
  aspect-ratio: 1 / 0.8;
  mask-image: linear-gradient(transparent, #000 16%, #000 82%, transparent);
  -webkit-mask-image: linear-gradient(transparent, #000 16%, #000 82%, transparent);
}
.sect-weapon-box .journey-art {
  inset: -16px 0;
  height: calc(100% + 32px);
}
.scroll-card:hover .sect-weapon-box {
  transform: none;
  box-shadow: none;
}
.scroll-card::before, .scroll-card::after {
  height: 8px;
  background: linear-gradient(90deg, #4d5c53, #889184 50%, #4d5c53);
}
.scroll-card { box-shadow: 0 12px 28px rgba(39, 64, 58, 0.09); }
.scroll-inner { overflow: hidden; }
.journey-panorama {
  position: relative;
  width: 100%;
  height: clamp(240px, 36vw, 460px);
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
  margin: -3rem 0;
  mask-image: linear-gradient(transparent, #000 24%, #000 70%, transparent);
  -webkit-mask-image: linear-gradient(transparent, #000 24%, #000 70%, transparent);
}
.journey-panorama .journey-art { object-position: center 48%; }
.panorama-mist {
  position: absolute;
  inset: 0 -10%;
  background:
    radial-gradient(ellipse at 30% 80%, var(--bg-paper), transparent 58%),
    linear-gradient(transparent 30%, color-mix(in srgb, var(--bg-paper) 35%, transparent));
  transform: translate3d(var(--mist-x, 0px), 0, 0);
}
.cta-section { overflow: visible; }
.cta-box { background: color-mix(in srgb, var(--bg-paper-card) 90%, transparent); }
.site-footer { z-index: 2; background: transparent; }
/* Fade the paper content into view; parallax is confined to the artwork. */
.motion-ready [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition: opacity 0.85s ease, transform 0.85s cubic-bezier(0.2, 0.65, 0.3, 1);
  transition-delay: var(--reveal-delay, 0ms);
}
.motion-ready [data-reveal].in-view { opacity: 1; transform: none; }
@media (min-width: 1100px) {
  .sects-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1rem; }
  .scroll-inner { padding: 1.5rem 1rem; }
  .sect-weapon-box { width: calc(100% + 2rem); }
  .sect-name-vn { font-size: 1.05rem; min-height: 3.1rem; line-height: 1.5; }
}
@media (max-width: 768px) {
  html { scroll-padding-top: 4.5rem; }
  .journey-panorama { height: 260px; margin: -1.5rem 0; }
  .intro-art-frame .art-window { aspect-ratio: 4 / 3; }
  .section-landscape { opacity: calc(var(--journey-background-opacity) * 0.7); }
  .entry-form { grid-template-columns: minmax(0, 1fr); }
  .cta-box { padding: 2.5rem 1.5rem; }
}