/* ==========================================================
   GLD-LAB. — Token system (Renewal: editorial white/black,
   inspired by KANEKO OPTICAL / VermicularVillage direction)
   ========================================================== */
:root{
  --bg: #faf9f6;
  --surface: #ffffff;
  --surface-2: #f1efe9;
  --ink: #111111;
  --line: rgba(17,17,17,0.10);
  --line-strong: rgba(17,17,17,0.22);
  --text: #1a1a1a;
  --text-dim: rgba(26,26,26,0.62);
  --text-faint: rgba(26,26,26,0.40);

  --accent: #a86a3a;      /* 落ち着いたゴールド一点使い */
  --accent-soft: rgba(168,106,58,0.12);

  --font-display: 'Cormorant', 'Shippori Mincho', serif;
  --font-jp-display: 'Shippori Mincho', serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-label: 'Cormorant', serif;

  --container: 1240px;
  --radius: 0px;
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin:0; padding:0; }

::selection{ background: var(--ink); color: var(--bg); }

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible{
  outline: 1px solid var(--ink);
  outline-offset: 3px;
}

/* ==========================================================
   Reveal-on-scroll (subtle fade+rise, orchestrated not scattered)
   ========================================================== */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s cubic-bezier(.2,.6,.2,1), transform 1.1s cubic-bezier(.2,.6,.2,1);
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* ==========================================================
   Media placeholders — plain <img>/<video>, swap the src path
   only. No overlay pattern; a neutral background shows while
   loading or if the path is not yet set.
   ========================================================== */
img, video{
  display:block;
  max-width: 100%;
}

.ph-icon{
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  aspect-ratio: 1;
}
.ph-overview-image{
  width: 100%; height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center;
}
.ph-logo{
  height: 24px;
  width: auto;
  object-fit: contain;
}
.ph-gallery{
  flex: 1 1 200px;
  min-width: 0;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  object-position: center;
}
.ph-video-wrap{
  position: relative;
  flex: 1 1 280px;
  min-width: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.ph-video{
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  position: absolute;
  inset: 0;
}
.ph-video-wrap::after{
  content: "▶";
  position:absolute;
  top: 14px; right: 16px;
  font-size: 0.75rem;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  width: 30px; height: 30px;
  border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
  background: rgba(250,249,246,0.85);
  pointer-events: none;
  z-index: 1;
}
.ph-more{
  width: 100%; height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
  margin-bottom: 4px;
}
.ph-portrait{
  width: 48px; height: 48px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center;
  flex-shrink: 0;
}
.ph-contact-bg{
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.4;
}
.hero-slide-img{
  position:absolute; 
  inset:0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  background-color: #d8d4c8;
}

/* ==========================================================
   Header
   ========================================================== */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 100;
  background: transparent;
  transition: background 0.4s ease, border-color 0.4s ease;
}
.site-header.is-scrolled{
  background: rgba(250,249,246,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 26px 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  display: inline-flex;
  align-items: center;
}
.logo-img{
  height: 28px;
  width: auto;
  object-fit: contain;
  transition: opacity 0.3s ease;
}
.logo-img--dark{
  display: none;
  height: 24px;
}
.site-header.is-scrolled .logo-img--light{ display: none; }
.site-header.is-scrolled .logo-img--dark{ display: block; }

.main-nav{
  display:flex;
  align-items:center;
  gap: 44px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}
.main-nav a{
  color: #fff;
  position: relative;
  padding: 6px 0;
  transition: color 0.4s ease, opacity 0.25s ease;
}
.site-header.is-scrolled .main-nav a{ color: var(--text-dim); }
.main-nav a:hover{ opacity: 0.6; }
.main-nav a::after{
  content:"";
  position:absolute;
  left:0; bottom:0;
  width:0; height:1px;
  background: currentColor;
  transition: width 0.3s ease;
}
.main-nav a:hover::after{ width: 100%; }

.nav-cta{
  border: 1px solid currentColor;
  padding: 10px 22px !important;
}
.nav-cta::after{ display:none; }

.nav-toggle{
  display:none;
  flex-direction: column;
  gap: 5px;
  background:none;
  border:none;
  cursor:pointer;
  padding: 8px;
}
.nav-toggle span{
  width: 22px; height: 1px;
  background: #fff;
  transition: background 0.4s ease;
}
.site-header.is-scrolled .nav-toggle span{ background: var(--ink); }

/* ==========================================================
   Hero — fullscreen image slider (Vermicular Village 参照)
   ========================================================== */
.hero{
  position: relative;
  max-width: none;
  width: 100%;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  isolation: isolate;
}

.hero-slider{
  position:absolute;
  inset:0;
  z-index:-1;
  width: 100%; 
  height: 100%;
}
.hero-slide{
  position:absolute;
  inset:0;
  width: 100%; 
  height: 100%;
  opacity: 0;
  transform: scale(1.12);
  transition: opacity 1.6s cubic-bezier(.2,.6,.2,1), transform 6.5s cubic-bezier(.2,.6,.2,1);
}
.hero-slide.is-active{
  opacity: 1;
  transform: scale(1.0);
  z-index: 1;
}
.hero-veil{
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(17,17,17,0.28) 0%, rgba(17,17,17,0.08) 38%, rgba(17,17,17,0.38) 100%);
  z-index: 2;
}

.hero-content{
  position: relative;
  z-index: 3;
  max-width: var(--container);
  margin: 0 auto;
  height: 100%;
  padding: 0 32px;
  display:flex;
  flex-direction: column;
  justify-content: center;
  color: #fff;
}
.eyebrow{
  font-family: var(--font-label);
  font-style: italic;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.85);
  margin: 0 0 26px;
}
.hero h1{
  font-family: var(--font-jp-display);
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.5;
  font-weight: 500;
  margin: 0 0 60px;
  letter-spacing: 0.02em;
}
.hero-lead{
  font-size: 0.95rem;
  color: rgba(255,255,255,0.82);
  max-width: 42ch;
  margin: 0 0 46px;
  line-height: 2;
}
.hero-actions{ display:flex; gap: 20px; flex-wrap: wrap; }

.btn{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 16px 34px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
}
.btn-primary{
  background: #fff;
  color: var(--ink);
}
.btn-primary:hover{ background: var(--ink); color: #fff; }
.btn-ghost{
  border: 1px solid rgba(255,255,255,0.6);
  color: #fff;
}
.btn-ghost:hover{ background: rgba(255,255,255,0.12); }
.btn-large{ padding: 19px 44px; font-size: 0.82rem; }

/* dark-section variants (used on contact section) */
.contact-section .btn-primary{ background: var(--ink); color:#fff; }
.contact-section .btn-primary:hover{ background: var(--accent); }

.hero-index{
  position:absolute;
  right: 32px;
  bottom: 40px;
  z-index: 3;
  display:flex;
  align-items:center;
  gap: 14px;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-label);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}
.hero-index-bar{
  position: relative;
  width: 90px; height: 1px;
  background: rgba(255,255,255,0.3);
}
.hero-index-bar i{
  position:absolute; left:0; top:0;
  height:1px; width:25%;
  background:#fff;
  transition: width 0.5s ease;
}

.scroll-cue{
  position:absolute;
  bottom: 40px;
  left: 32px;
  z-index: 3;
  display:flex;
  align-items:center;
  gap: 14px;
}
.scroll-cue span{
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.75);
  writing-mode: vertical-rl;
}
.scroll-line{
  width:1px; height: 50px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.75), transparent);
}

/* ==========================================================
   Section shared — editorial rhythm
   ========================================================== */
main > section{
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 75px 32px;
}
.section-eyebrow{
  font-family: var(--font-label);
  font-style: italic;
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin: 0 0 20px;
}
.section-title{
  font-family: var(--font-jp-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.65;
  margin: 0 0 48px;
  letter-spacing: 0.02em;
}
.accent-text{ color: var(--accent); }

/* ==========================================================
   Overview
   ========================================================== */
.overview-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 90px;
}
.overview-item{
  background: var(--bg);
  padding: 0;
  text-align:center;
}
.overview-mono{
  display:block;
  font-family: var(--font-label);
  font-style: italic;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin: 20px 0 6px;
}
.overview-item p{ margin:0 0 24px; font-size: 1.05rem; font-family: var(--font-jp-display); }

.overview-body{
  display:grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 90px;
  align-items:center;
}
.overview-copy{ max-width: 56ch; }
.overview-headline{
  font-family: var(--font-jp-display);
  font-size: 1.35rem;
  color: var(--text);
  margin: 0 0 22px;
  line-height: 1.75;
}
.overview-sub{ color: var(--text-dim); margin: 0 0 34px; font-size: 0.92rem; }
.takasho-badge{
  display:inline-flex;
  align-items:center;
  gap: 14px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  padding: 16px 0;
  font-size: 0.85rem;
}
.takasho-badge em{
  font-style: italic;
  font-family: var(--font-label);
  font-size: 0.78rem;
  color: var(--text-faint);
}

/* ==========================================================
   Service — editorial numbered spread
   ========================================================== */
.service-card{
  display:grid;
  grid-template-columns: 220px 1fr;
  gap: 60px;
  padding: 80px 0;
  border-top: 1px solid var(--line);
}
.service-card:last-child{ border-bottom: 1px solid var(--line); }

.service-index{
  font-family: var(--font-label);
  font-style: italic;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--accent);
  padding-top: 6px;
}
.service-body h3{
  font-family: var(--font-jp-display);
  font-size: 1.65rem;
  font-weight: 500;
  margin: 0 0 22px;
  letter-spacing: 0.01em;
}
.service-desc{
  color: var(--text-dim);
  max-width: 60ch;
  margin: 0 0 30px;
  font-size: 0.93rem;
}
.feature-tags{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
  margin-bottom: 38px;
}
.feature-tags li{
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  border: 1px solid var(--line-strong);
  padding: 8px 16px;
}

.gallery-strip{
  display:flex;
  gap: 14px;
  margin-bottom: 34px;
  overflow-x: auto;
  padding-bottom: 4px;
}

/* ==========================================================
   Before / After comparison slider (EXVIZAI)
   Draggable divider; user can compare input vs AI-generated
   result. Works with mouse, touch, and keyboard (range input).
   ========================================================== */
.ba-slider-grid{
  display:flex;
  gap: 14px;
  margin-bottom: 34px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.ba-slider{ flex: 1 1 200px; min-width: 0; }
.ba-slider-frame{
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--surface-2);
  cursor: ew-resize;
  user-select: none;
}
.ba-img{
  position:absolute;
  inset:0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  pointer-events: none;
}
.ba-before-wrap{
  position:absolute;
  inset:0;
  width: 50%;
  overflow: hidden;
  pointer-events: none;
}
.ba-before-wrap .ba-img--before{
  position:absolute;
  inset:0;
  max-width: none;
  height: 100%;
  object-fit: cover;
}
 
.ba-divider{
  position:absolute;
  top:0; bottom:0;
  left: var(--ba-pos, 50%);
  width: 2px;
  background: #fff;
  transform: translateX(-1px);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.08);
  pointer-events: none;
}
.ba-handle{
  position:absolute;
  top:50%; left:50%;
  transform: translate(-50%,-50%);
  width: 40px; height: 40px;
  border-radius: 50%;
  background: #fff;
  color: var(--ink);
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 2px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.18);
}
 
.ba-range{
  position:absolute;
  inset:0;
  width: 100%; height: 100%;
  margin:0;
  opacity: 0;
  cursor: ew-resize;
  -webkit-appearance: none;
  appearance: none;
  z-index: 3;
}
.ba-range::-webkit-slider-thumb{
  -webkit-appearance: none;
  width: 40px; height: 40px;
}
.ba-range::-moz-range-thumb{
  width: 40px; height: 40px;
  border: none;
  background: transparent;
}
 
.ba-label{
  position:absolute;
  bottom: 14px;
  font-family: var(--font-label);
  font-style: italic;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: #fff;
  background: rgba(17,17,17,0.55);
  padding: 5px 12px;
  pointer-events: none;
}
.ba-label--before{ left: 14px; }
.ba-label--after{ right: 14px; }

.video-strip{
  display:flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.price-strip{
  display:flex;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 38px;
}
.price-item{
  flex: 1 1 160px;
  background: var(--surface);
  padding: 20px 22px;
}
.price-item span{
  display:block;
  font-size: 0.76rem;
  color: var(--text-faint);
  margin-bottom: 8px;
}
.price-item strong{
  font-family: var(--font-label);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text);
}

.service-links{
  display:flex;
  flex-wrap: wrap;
  gap: 30px;
  align-items:center;
}
.link-arrow{
  font-size: 0.85rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 3px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.link-arrow:hover{ color: var(--ink); border-color: var(--ink); }
.link-arrow--primary{
  color: var(--accent);
  border-color: var(--accent);
}

/* ==========================================================
   More services
   ========================================================== */
.more-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.more-card{
  display:flex;
  flex-direction: column;
  gap: 18px;
}
.more-label{
  font-family: var(--font-jp-display);
  font-size: 1.1rem;
  font-weight: 500;
}
.more-card p{
  color: var(--text-dim);
  font-size: 0.88rem;
  margin:0;
  flex-grow: 1;
}
.more-more{
  font-family: var(--font-label);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--accent);
}

/* ==========================================================
   News
   ========================================================== */
.news-list{
  border-top: 1px solid var(--line);
}
.news-item{
  border-bottom: 1px solid var(--line);
}
.news-item a{
  display:flex;
  align-items:center;
  gap: 32px;
  padding: 26px 4px;
  transition: opacity 0.2s ease;
}
.news-item a:hover{ opacity: 0.6; }
.news-item a:hover .news-arrow{ transform: translateX(4px); }
.news-date{
  flex-shrink: 0;
  font-family: var(--font-label);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  color: var(--text-faint);
  width: 110px;
}
.news-title{
  flex: 1;
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.7;
}
.news-arrow{
  flex-shrink: 0;
  color: var(--accent);
  font-size: 0.9rem;
  transition: transform 0.25s ease;
}
.news-more{
  display:flex;
  justify-content: center;
  margin-top: 56px;
}

/* ==========================================================
   Contact — inverted (ink) section for rhythm contrast
   ========================================================== */
.contact-section{
  max-width: none;
  padding: 0;
  margin-top: 40px;
  background: var(--ink);
  color: #f4f2ec;
}
.contact-scene{
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.contact-inner{
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 120px 32px;
  text-align: center;
}
.section-eyebrow--light{ justify-content:center; color: var(--accent); }
.contact-title{
  font-family: var(--font-jp-display);
  font-weight: 500;
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1.6;
  margin: 0 0 26px;
}
.contact-lead{
  color: rgba(244,242,236,0.7);
  margin: 0 0 48px;
  font-size: 0.92rem;
}

/* ==========================================================
   Footer
   ========================================================== */
.site-footer{
  border-top: 1px solid var(--line);
  background: var(--surface);
}
.footer-main{
  max-width: var(--container);
  margin: 0 auto;
  padding: 80px 32px 60px;
  display:grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
}

.footer-brand .logo--footer{
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink);
}
.footer-brand .logo--footer .dot{ color: var(--accent); }
.footer-tagline{
  margin: 18px 0 0;
  font-size: 0.82rem;
  color: var(--text-faint);
  font-family: var(--font-jp-display);
  letter-spacing: 0.02em;
}

.footer-company-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
}
.footer-company-name{
  font-family: var(--font-jp-display);
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--text);
  margin: 0 0 16px;
}
.footer-company-note{
  font-family: var(--font-label);
  font-style: italic;
  font-size: 0.78rem;
  color: var(--text-faint);
}
.footer-info-list{
  display:flex;
  flex-direction: column;
  gap: 8px;
}
.footer-info-list li{
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.footer-legal{
  border-top: 1px solid var(--line);
}
.footer-legal-nav{
  max-width: var(--container);
  margin: 0 auto;
  display:flex;
  gap: 32px;
  padding: 28px 32px 0;
  flex-wrap: wrap;
}
.footer-legal-nav a{
  font-size: 0.78rem;
  color: var(--text-dim);
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.footer-legal-nav a:hover{ color: var(--ink); border-color: var(--ink); }

.footer-copyright{
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px 32px 32px;
  font-size: 0.75rem;
  color: var(--text-faint);
  letter-spacing: 0.03em;
}

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width: 860px){
  .main-nav{ display:none; }
  .nav-toggle{ display:flex; }

  .service-card{ grid-template-columns: 1fr; gap: 24px; padding: 60px 0; }
  .overview-grid{ grid-template-columns: repeat(2,1fr); }
  .overview-body{ grid-template-columns: 1fr; gap: 50px; }
  .more-grid{ grid-template-columns: 1fr; gap: 40px; }
  .gallery-strip{ flex-wrap: wrap; }
  .ph-gallery{ flex: 1 1 45%; }
  .ba-slider-grid{ flex-wrap: wrap; }
  .ba-slider{ flex: 1 1 45%; }

  .news-item a{ flex-direction: column; align-items: flex-start; gap: 8px; }
  .news-date{ width: auto; }

  .footer-main{ grid-template-columns: 1fr; gap: 40px; padding: 60px 24px 40px; }
  .footer-company-grid{ grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 480px){
  main > section{ padding: 64px 20px; }
  .header-inner{ padding: 20px; }
  .hero-content{ padding: 0 20px; }
  .service-card{ padding: 44px 0; }
  .contact-inner{ padding: 80px 20px; }
  .footer-main{ padding: 50px 20px 30px; }
  .footer-legal-nav{ padding: 24px 20px 0; }
  .footer-copyright{ padding: 16px 20px 28px; }
}