/* ==========================================================================
   Lance Crest Path — 稜線の道 — shared stylesheet
   ========================================================================== */

html { scroll-behavior: smooth; }

body {
  background-color: #FBF8F3;
  color: #22241F;
  font-family: "Zen Kaku Gothic New", sans-serif;
  overflow-x: hidden;
}

::selection { background: #2F3E2E; color: #F1EAE0; }

/* subtle paper texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
  background-image: radial-gradient(rgba(34,36,31,0.035) 1px, transparent 1px);
  background-size: 3px 3px;
}

/* ---------------- Nav ---------------- */
#site-nav {
  background: transparent;
  color: #F1EAE0;
}
#site-nav .nav-logo-icon,
#site-nav .nav-word,
#site-nav .nav-jp,
#site-nav .menu-label,
#site-nav .menu-label-jp,
#site-nav .bar { color: #FBF8F3; }
#site-nav .bar { background-color: #FBF8F3; }

#site-nav.nav-solid {
  background: rgba(251, 248, 243, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(34,36,31,0.06);
}
#site-nav.nav-solid .nav-logo-icon,
#site-nav.nav-solid .nav-word,
#site-nav.nav-solid .menu-label { color: #2F3E2E; }
#site-nav.nav-solid .nav-jp,
#site-nav.nav-solid .menu-label-jp { color: #5C5A55; }
#site-nav.nav-solid .bar { background-color: #2F3E2E; }

.nav-gradient {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 9rem;
  background: linear-gradient(to bottom, rgba(20,24,18,0.45), rgba(20,24,18,0));
  z-index: 40;
  pointer-events: none;
  transition: opacity .5s ease;
}
#site-nav.nav-solid ~ .nav-gradient,
body.no-hero .nav-gradient { opacity: 0; }

/* ---------------- Overlay Menu ---------------- */
#site-overlay-menu {
  transform: translateX(100%);
}
#site-overlay-menu.menu-open { transform: translateX(0); }
.overlay-link { position: relative; display: inline-block; }
.overlay-link::after {
  content: "";
  position: absolute; left: 0; bottom: -4px;
  width: 0; height: 1px;
  background: currentColor;
  transition: width .4s ease;
}
.overlay-link:hover::after { width: 100%; }

/* ---------------- Buttons ---------------- */
.btn-nature {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .9rem 2.2rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: "Marcellus", serif;
  letter-spacing: .04em;
  overflow: hidden;
  transition: color .5s ease, transform .3s ease;
  z-index: 0;
}
.btn-nature::before {
  content: "";
  position: absolute;
  inset: 0;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s cubic-bezier(.16,.8,.24,1);
  z-index: -1;
}
.btn-nature:hover::before { transform: scaleX(1); }
.btn-nature:hover { transform: translateY(-2px); }
.btn-nature.solid {
  background: currentColor;
}
.btn-nature.solid span { color: #FBF8F3; position: relative; z-index: 1; }
.btn-nature.solid::before { background: transparent; }

.btn-light span { position: relative; }
.btn-light:hover span { color: #2F3E2E; }
.btn-dark:hover span { color: #F1EAE0; }

/* ---------------- Reveal on scroll ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 1s cubic-bezier(.16,.8,.24,1), transform 1s cubic-bezier(.16,.8,.24,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1.visible { transition-delay: .12s; }
.reveal-delay-2.visible { transition-delay: .24s; }
.reveal-delay-3.visible { transition-delay: .36s; }

/* ---------------- Mist drift ---------------- */
.mist-drift { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.mist-drift span {
  position: absolute;
  width: 55%; height: 65%;
  background: radial-gradient(circle, rgba(255,255,255,0.55), rgba(255,255,255,0) 70%);
  filter: blur(38px);
  animation: mistMove 26s ease-in-out infinite;
}
.mist-drift span:nth-child(1) { top: 8%; left: -10%; }
.mist-drift span:nth-child(2) { top: 30%; left: 45%; animation-duration: 34s; animation-delay: -8s; }
.mist-drift span:nth-child(3) { top: 55%; left: 5%; animation-duration: 40s; animation-delay: -18s; opacity: .7; }
@keyframes mistMove {
  0%   { transform: translate(-8%, 0) scale(1); }
  50%  { transform: translate(10%, -6%) scale(1.15); }
  100% { transform: translate(-8%, 0) scale(1); }
}

/* ---------------- Floating leaves ---------------- */
.leaf-container { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 10; }
.leaf {
  position: absolute;
  top: -10%;
  will-change: transform, opacity;
  animation-name: leafFall;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  opacity: 0;
  filter: drop-shadow(0 4px 6px rgba(0,0,0,0.15));
}
@keyframes leafFall {
  0%   { transform: translate(0,0) rotate(0deg); opacity: 0; }
  8%   { opacity: .9; }
  92%  { opacity: .5; }
  100% { transform: translate(60px, 115vh) rotate(340deg); opacity: 0; }
}

/* ---------------- Parallax ---------------- */
.parallax-wrap { position: absolute; inset: 0; overflow: hidden; }
.parallax-layer { position: absolute; inset: -10% -5%; will-change: transform; }

/* ---------------- Cards ---------------- */
.editorial-card { transition: transform .6s cubic-bezier(.16,.8,.24,1), box-shadow .6s ease; }
.editorial-card:hover { transform: translateY(-6px); }
.editorial-card .card-img { transition: transform 1.2s cubic-bezier(.16,.8,.24,1); }
.editorial-card:hover .card-img { transform: scale(1.06); }

/* ---------------- Masonry gallery ---------------- */
.masonry { column-gap: 1.25rem; }
.masonry .m-item { break-inside: avoid; margin-bottom: 1.25rem; }

/* ---------------- FAQ accordion ---------------- */
.faq-answer { display: none; }
.faq-item.active .faq-q-icon { transform: rotate(45deg); }
.faq-q-icon { transition: transform .4s ease; }

/* ---------------- Toast ---------------- */
#toast {
  transform: translateY(120%);
  opacity: 0;
}
#toast.show { transform: translateY(0); opacity: 1; }

/* ---------------- Forms ---------------- */
.field-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(34,36,31,0.25);
  padding: .75rem .25rem;
  font-family: "Zen Kaku Gothic New", sans-serif;
  transition: border-color .3s ease;
}
.field-input:focus { outline: none; border-color: #2F3E2E; }

/* ---------------- Misc ---------------- */
.divider-line { height: 1px; background: linear-gradient(to right, transparent, rgba(34,36,31,.25), transparent); }
.text-shadow-soft { text-shadow: 0 2px 18px rgba(0,0,0,.35); }
.bg-noise-dark { background: linear-gradient(180deg, rgba(27,37,25,.55), rgba(27,37,25,.85)); }

/* number badges */
.num-badge {
  font-family: "Marcellus", serif;
  -webkit-text-stroke: 1px rgba(47,62,46,.4);
  color: transparent;
}

@media (max-width: 640px) {
  .leaf { display: none; }
}

/* ---------------- Lightbox ---------------- */
#lightbox {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(27,37,25,0.92);
  display: flex; align-items: center; justify-content: center;
  padding: 4rem 1.5rem;
  opacity: 0; pointer-events: none;
  transition: opacity .4s ease;
}
#lightbox.lightbox-open { opacity: 1; pointer-events: auto; }
#lightbox img { max-height: 82vh; max-width: 100%; object-fit: contain; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.lightbox-trigger { cursor: zoom-in; }

/* ---------------- Filter buttons ---------------- */
.filter-btn { transition: background-color .3s ease, color .3s ease; }