@charset "UTF-8";

/* =====================================================
  ROOT TOKENS
===================================================== */
:root{
  --corp-narrow: 920px;
  --corp-pad-pc: 40px;
  --corp-pad-sp: 18px;

  --corp-header-h: 64px;

  /* =========================
     Vertical Rhythm (ADD ONLY)
     - Only for spacing grid
  ========================== */
  --rhythm: 12px;

  /* =========================
     Section Spacing (CHANGE ONLY)
     - PC: 120px 그대로
     - SP: 84px (12px grid)
  ========================== */
  --corp-sec-y: calc(var(--rhythm) * 10);   /* 120px */
  --corp-sec-y-sm: calc(var(--rhythm) * 7); /* 84px */

  --phi: 1.618;

  --corp-body: 14px;
  --corp-lh: 2.28;
  --corp-track: .06em;

  --ink-strong: rgba(0,0,0,.82);
  --ink-body:   rgba(0,0,0,.72);
  --ink-muted:  rgba(0,0,0,.56);

  --corp-en-track: .08em;
  --corp-en-track-wide: .18em;

  --line-soft: rgba(0,0,0,.08);
  --line-mid:  rgba(0,0,0,.12);

  --card-radius: 0px;
  --shadow-soft: 0 18px 48px rgba(0,0,0,.08);

  --ease-out: cubic-bezier(.16,1,.30,1);
}

@media(max-width:768px){
  :root{
    --corp-header-h: 60px;
    --corp-lh: 2.22;
  }
}

/* =====================================================
  Base / Reset
===================================================== */
html,body{height:100%}

body{
  margin:0;
  font-family:"Cormorant Garamond",serif;
  font-size:var(--corp-body);
  line-height:var(--corp-lh);
  letter-spacing:var(--corp-track);
  color:var(--ink-body);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;

  background:
    radial-gradient(900px 520px at 12% 6%, rgba(255,255,255,.96), rgba(255,255,255,0)),
    radial-gradient(900px 520px at 92% 0%, rgba(255,255,255,.88), rgba(255,255,255,0)),
    url("../img/bg-marble-soft.jpg") center top / cover no-repeat fixed,
    #fff;
}

@supports (-webkit-touch-callout: none){
  body{ background-attachment: scroll, scroll, scroll, scroll; }
}

*{box-sizing:border-box}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
p,h1,h2,h3,h4{margin:0;font-weight:400}

/* smooth anchor offset */
html{
  scroll-behavior:smooth;
  scroll-padding-top: calc(var(--corp-header-h) + 12px);
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
}

/* subtle noise */
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.08;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}

/* main stacking (noiseより前へ) */
body > *{ position:relative; z-index:1; }

/* =====================================================
  Layout
===================================================== */
.corp-container{
  max-width:var(--corp-narrow);
  margin:0 auto;
  padding:0 var(--corp-pad-pc);
}
@media(max-width:768px){
  .corp-container{ padding:0 var(--corp-pad-sp); }
}

.corp-section{
  padding:var(--corp-sec-y) 0;
}
@media(max-width:768px){
  .corp-section{ padding:var(--corp-sec-y-sm) 0; }
}

/* small label */
.corp-eyebrow{
  font-family:"Cinzel",serif;
  font-weight:500;
  font-size:10px;
  letter-spacing:var(--corp-en-track);
  text-transform:uppercase;
  color:var(--ink-strong);
  line-height:1.1;
  margin-bottom:14px;
  opacity:.9;
}

/* section title */
.corp-title{
  font-size:clamp(21px,2.2vw,30px);
  line-height:1.35;
  letter-spacing:var(--corp-track);
  color:var(--ink-strong);
}

/* body text */
.corp-text{
  font-size:14px;
  line-height:var(--corp-lh);
  color:var(--ink-body);
}

/* =====================================================
  HEADER
===================================================== */
.corp-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:1000;
  background:transparent;
  transition:background .35s ease, backdrop-filter .35s ease;
}

.corp-header.is-scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
}

.corp-header__inner{
  max-width:var(--corp-narrow);
  margin:0 auto;
  height:var(--corp-header-h);
  display:flex;
  align-items:center;
  padding:0 var(--corp-pad-pc);
}
@media(max-width:768px){
  .corp-header__inner{ padding:0 var(--corp-pad-sp); }
}

/* PC nav is disabled in this design */
.corp-nav,
.corp-nav__menu{
  display:none !important;
}

/* LOGO size (PC/SP) */
.corp-header .custom-logo{
  height:20px;
  max-width:170px;
  width:auto;
  object-fit:contain;
  opacity:.92;
}
@media(max-width:768px){
  .corp-header .custom-logo{
    height:16px;
    max-width:140px;
    opacity:.90;
  }
}

/* =====================================================
  HAMBURGER
===================================================== */
.corp-burger{
  margin-left:auto;
  width:44px;
  height:44px;
  border:0;
  background:transparent;
  display:grid;
  place-items:center;
  cursor:pointer;
  -webkit-tap-highlight-color:transparent;
}

.corp-burger__lines{
  position:relative;
  width:30px;
  height:1px;
}

.corp-burger__lines::before,
.corp-burger__lines::after{
  content:"";
  position:absolute;
  width:30px;
  height:1px;
  background:var(--ink-strong);
  left:0;
  transition:.28s var(--ease-out);
}

.corp-burger__lines::before{ top:-4px; }
.corp-burger__lines::after{ bottom:-4px; }

body.is-menu-open .corp-burger__lines::before{
  top:0; transform:rotate(45deg);
}
body.is-menu-open .corp-burger__lines::after{
  bottom:0; transform:rotate(-45deg);
}

/* =====================================================
  FULLSCREEN MENU（表示条件：body.is-menu-open + hidden制御）
===================================================== */
[hidden]{display:none !important;}

.corp-menu{
  position:fixed;
  inset:0;
  z-index:10000;
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transition:
    opacity .72s cubic-bezier(.22,.61,.36,1),
    visibility .72s cubic-bezier(.22,.61,.36,1);
}

body.is-menu-open .corp-menu{
  opacity:1;
  visibility:visible;
  pointer-events:auto;
}

.corp-menu__backdrop{
  position:absolute;
  inset:0;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
}

.corp-menu__panel{
  position:relative;
  height:100%;
  display:grid;
  place-items:center;
  padding:96px 18px;
  color:#111;
}

/* list */
.corp-menu__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:32px;
  text-align:center;
}

/* link */
.corp-menu__list a{
  display:inline-block;
  font-family:"Cinzel",serif;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:rgba(0,0,0,.70);
  transition:opacity .35s ease;
}
.corp-menu__list a:hover{ opacity:.75; }

/* underline */
.corp-menu__list a::after{
  content:"";
  display:block;
  height:1px;
  margin:10px auto 0;
  width:140px;
  background:rgba(0,0,0,.14);
  transform:scaleX(.22);
  transform-origin:center;
  transition:transform .35s ease, background .35s ease;
}
@media(hover:hover){
  .corp-menu__list a:hover::after{
    transform:scaleX(1);
    background:rgba(0,0,0,.22);
  }
}

/* scroll lock */
body.is-menu-open{ overflow:hidden; }

/* =====================================================
  BRANDS (2-column cards) – 崩れない土台
  ※詳細演出は page/top 側CSSで上書きOK
===================================================== */
.corp-brands{
  padding-top: clamp(48px, 6vw, 84px);
}

.corp-brands__grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 38px;
  align-items:start;
}

@media(max-width:900px){
  .corp-brands__grid{ gap:24px; }
}
@media(max-width:768px){
  .corp-brands__grid{
    grid-template-columns:1fr;
    gap:26px;
  }
}

.corp-brand-card{
  display:block;
}

.corp-brand-card__media{
  position:relative;
  overflow:hidden;
  background:#f6f6f6;
}

.corp-brand-card__media img{
  width:100%;
  height:auto;
  display:block;
  transform:scale(1.0);
}

.corp-brand-card__body{
  padding: 16px 0 0;
}

.corp-brand-card__kicker{
  font-family:"Cinzel",serif;
  font-weight:500;
  font-size:9px;
  letter-spacing:var(--corp-en-track-wide);
  text-transform:uppercase;
  color:rgba(0,0,0,.42);
  margin-bottom:8px;
}

.corp-brand-card__title{
  font-size:clamp(18px, 2.0vw, 24px);
  line-height:1.35;
  color:var(--ink-strong);
  letter-spacing:var(--corp-track);
  margin-bottom:10px;
}

.corp-brand-card__desc{
  font-size:13px;
  line-height:2.05;
  color:rgba(0,0,0,.62);
  letter-spacing:var(--corp-track);
  max-width:52ch;
}

/* CTA (optional) */
.corp-linkline{
  display:inline-block;
  margin-top:18px;
  font-size:12px;
  color:rgba(0,0,0,.56);
  letter-spacing:var(--corp-track);
  position:relative;
  padding-bottom:8px;
}
.corp-linkline::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:72px;
  height:1px;
  background:rgba(0,0,0,.18);
  transform:scaleX(.55);
  transform-origin:left;
  transition:transform .45s var(--ease-out);
}
@media(hover:hover){
  .corp-linkline:hover::after{ transform:scaleX(1); }
}

/* =====================================================
  Safety: cheap seam lines (optional - keep silent)
===================================================== */
hr{ border:0; height:1px; background:var(--line-soft); }