/* =========================================================
   base.css — variables / reset / typography / common parts
   ========================================================= */
:root{
  --navy:        #1E4A78;
  --navy-deep:   #133659;
  --navy-ink:    #0C2440;
  --sky:         #7FB0D8;
  --sky-light:   #B8D4E8;
  --sky-pale:    #E8F1F8;
  --white:       #FFFFFF;
  --off-white:   #FFFFFF;
  --paper:       #F5FAFD;
  --black:       #0A0A0A;
  --gray-50:     #FFFFFF;
  --gray-100:    #F5F5F5;
  --gray-200:    #EEEEEE;
  --gray-300:    #D1D5DB;
  --gray-400:    #9CA3AF;
  --gray-500:    #6B7280;
  --gray-700:    #374151;
  --line:        rgba(30,74,120,.16);
  --line-soft:   rgba(30,74,120,.09);
  --gold:        #B8A06A;
  --accent:      #3E7BA8;

  --serif-en: "Playfair Display", "Cormorant Garamond", serif;
  --serif-num:"Cormorant Garamond", "Playfair Display", serif;
  --serif-jp: "Noto Serif JP", "Yu Mincho", serif;
  --sans-jp:  "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;

  --ease:  cubic-bezier(.2,.7,.2,1);
  --ease2: cubic-bezier(.65,.05,.36,1);

  /* Fallback for the instant before main.js measures the header's real
     height and overrides this (see syncHeaderHeight); roughly matches
     the full desktop header so there's no flash of a large gap. */
  --nav-h: 148px;

  --pad-x: clamp(20px, 5vw, 60px);
  --sec-y: clamp(72px, 11vw, 140px);
}

*,*::before,*::after{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  font-family: var(--sans-jp);
  color: var(--navy-ink);
  background: #FFFFFF;
  font-weight: 400;
  line-height: 1.8;
  font-size: 15px;
  letter-spacing: .02em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a{ color:inherit; text-decoration:none; }
button{ font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
input,textarea,select{ font: inherit; color: inherit; }
img{ max-width:100%; display:block; }
::selection{ background: var(--navy); color: #fff; }

.en{ font-family: var(--serif-en); font-weight: 400; letter-spacing: .04em; }
.num{ font-family: var(--serif-num); font-weight: 400; font-feature-settings: "lnum"; }
.jp-serif{ font-family: var(--serif-jp); }
.eyebrow{
  display:inline-flex; align-items:center; gap:14px;
  font-family: var(--serif-en);
  font-size: 12px; letter-spacing: .32em; text-transform: uppercase;
  color: var(--navy);
}
.eyebrow::before{
  content:""; width:36px; height:1px; background: currentColor; opacity:.6;
}
.eyebrow.center{ justify-content:center; }
.eyebrow.center::after{ content:""; width:36px; height:1px; background: currentColor; opacity:.6; }

h1,h2,h3,h4{ margin:0; font-weight: 500; color: var(--navy); }
.h-display{
  font-family: var(--serif-en);
  font-weight: 400;
  font-size: clamp(48px, 9vw, 128px);
  line-height: 1.02;
  letter-spacing: -.01em;
}
.h-display .it{ font-style: italic; font-weight: 400; }
.h-section{
  font-family: var(--serif-en);
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.1;
  font-weight: 400;
}
.h-section .it{ font-style: italic; }
.h-jp{
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.75;
  color: var(--navy);
  letter-spacing: .04em;
}
.lead{
  font-family: var(--serif-jp);
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 2.15;
  color: var(--gray-700);
  letter-spacing: .06em;
  font-weight: 400;
}
.body-text{
  font-size: 14.5px;
  line-height: 2.1;
  color: var(--gray-700);
  letter-spacing: .05em;
}
.small{ font-size: 12px; letter-spacing: .1em; color: var(--gray-500); }

.wrap{ padding-left: var(--pad-x); padding-right: var(--pad-x); }
.section{ padding: var(--sec-y) 0; position: relative; }
.section-tight{ padding: clamp(48px,7vw,90px) 0; }
.container{ max-width: 1280px; margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); }
.container-narrow{ max-width: 960px; margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); }
.rule{ height:1px; background: var(--line); border:0; margin: 0; }

.img-placeholder{
  position: relative;
  background: var(--sky-pale);
  overflow: hidden;
  color: var(--accent);
  font-family: var(--sans-jp);
  font-size: 11px;
  letter-spacing: .3em;
  display:flex; align-items:center; justify-content:center;
  transition: background .6s var(--ease);
}
.img-placeholder img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
}
.img-placeholder::before{
  content:"";
  position:absolute; inset:0;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,.4) 0 2px, transparent 2px 14px);
  transition: transform 1.1s var(--ease);
}
.img-placeholder.has-img::before{ display:none; }
.img-placeholder > span{
  position: relative; z-index: 2;
  padding: 6px 12px;
  background: rgba(255,255,255,.75);
  backdrop-filter: blur(2px);
}
.card:hover .img-placeholder::before,
.hover-zoom:hover .img-placeholder::before{ transform: scale(1.08); }

.ph-ratio-4x3{ aspect-ratio: 4/3; }
.ph-ratio-3x2{ aspect-ratio: 3/2; }
.ph-ratio-16x9{ aspect-ratio: 16/9; }
.ph-ratio-1x1{ aspect-ratio: 1/1; }
.ph-ratio-3x4{ aspect-ratio: 3/4; }
.ph-tall  { aspect-ratio: 4/5; }

.reveal{
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity .9s var(--ease), transform 1.05s var(--ease);
  transition-delay: var(--rd, 0ms);
  will-change: opacity, transform;
}
.reveal.is-in{ opacity:1; transform: translate3d(0,0,0); }

@media (prefers-reduced-motion: reduce){
  .reveal{ transition: none !important; opacity:1 !important; transform:none !important; }
  html{ scroll-behavior:auto; }
}

main{ padding-top: var(--nav-h); }

.scroll-progress{
  position: fixed; top:0; left:0; height:2px; width:0;
  background: var(--accent); z-index: 100;
  transition: width .1s linear;
}

.btn{
  display:inline-flex; align-items:center; gap: 18px;
  padding: 20px 30px;
  border: 1px solid var(--navy);
  color: var(--navy);
  font-family: var(--sans-jp);
  font-size: 12px; letter-spacing: .28em;
  transition: background .5s var(--ease), color .5s var(--ease);
  position: relative; overflow: hidden;
}
.btn::before{
  content:""; position:absolute; inset:0; background: var(--navy);
  transform: translateY(101%);
  transition: transform .55s var(--ease);
  z-index: 0;
}
.btn > *{ position: relative; z-index: 1; }
.btn:hover{ color:#fff; }
.btn:hover::before{ transform: translateY(0); }
.btn .arrow{ width: 30px; height: 1px; background: currentColor; position: relative; }
.btn .arrow::after{
  content:""; position:absolute; right:0; top:-3px;
  width: 8px; height: 8px; border-top:1px solid currentColor; border-right:1px solid currentColor;
  transform: rotate(45deg);
}
.btn-solid{ background: var(--navy); color:#fff; border-color: var(--navy); }
.btn-solid::before{ background:#fff; }
.btn-solid:hover{ color: var(--navy); }
.btn-ghost{ border-color: rgba(255,255,255,.6); color:#fff; }
.btn-ghost::before{ background:#fff; }
.btn-ghost:hover{ color: var(--navy); }

.text-link{
  position:relative; display:inline-block;
  font-family: var(--serif-en);
  font-size: 13px; letter-spacing: .24em;
  padding-bottom: 4px;
}
.text-link::after{
  content:""; position:absolute; left:0; bottom:0; height:1px; width:100%;
  background: currentColor; transform: scaleX(1); transform-origin: right center;
  transition: transform .5s var(--ease);
}
.text-link:hover::after{ transform: scaleX(0); transform-origin: left center; }

.sec-head{
  display:grid; grid-template-columns: 1fr 1.4fr; gap: 60px;
  align-items: flex-start; margin-bottom: 80px;
}
.sec-head .h-section{ letter-spacing: -.01em; }
.sec-head .body-text{ max-width: 620px; }
@media (max-width: 900px){
  .sec-head{ grid-template-columns: 1fr; gap: 30px; margin-bottom: 50px; }
}

.two-col{ display:grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 4vw, 60px); }
@media (max-width: 900px){ .two-col{ grid-template-columns: 1fr; } }
.hidden{ display:none !important; }

.skip-link{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--navy); color:#fff; padding:14px 22px; letter-spacing:.1em;
}
.skip-link:focus{ left: 12px; top: 12px; }