/* ── RESET & BASE ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{font-family:'Noto Sans JP','Hiragino Kaku Gothic ProN','Yu Gothic',sans-serif;background:#fff;color:#1a1a1a;-webkit-font-smoothing:antialiased;overflow-x:hidden;line-height:1.7;}

/* ── DESIGN TOKENS ── */
:root{
  --navy:#0d1b2a;
  --gold:#b8963e;
  --gold-light:#d4af6a;
  --white:#ffffff;
  --off-white:#f7f5f0;
  --black:#0a0a0a;
  --dark:#111827;
  --gray:#5a6475;
  --text:#1a1a1a;
  --border:rgba(0,0,0,0.09);
  --border-dark:rgba(255,255,255,0.1);
  --section-pad:clamp(96px,11vw,160px) clamp(28px,5.5vw,96px);
}

/* ── SKIP LINK ── */
.skip-link{position:absolute;top:-100%;left:0;background:var(--gold);color:var(--black);padding:8px 16px;font-size:0.8rem;z-index:9999;}
.skip-link:focus{top:0;}

/* ── LOADER ── */
#loader{display:none;}

/* ── NAVIGATION ── */
nav{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:22px clamp(28px,4.5vw,72px);transition:background 0.4s,padding 0.4s,box-shadow 0.4s;}
nav.scrolled{background:rgba(10,22,38,0.97);padding:15px clamp(28px,4.5vw,72px);box-shadow:0 1px 32px rgba(0,0,0,0.25);}
.nav-logo img{height:38px;width:auto;display:block;}
.nav-links{display:flex;gap:clamp(24px,3.5vw,48px);list-style:none;}
.nav-links a{font-family:'Barlow',sans-serif;font-size:0.68rem;letter-spacing:0.24em;text-transform:uppercase;color:rgba(255,255,255,0.7);text-decoration:none;transition:color 0.25s;position:relative;padding-bottom:5px;}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:1px;background:var(--gold);transition:width 0.3s;}
.nav-links a:hover,.nav-links a.active{color:var(--white);}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}

/* ── HAMBURGER ── */
#hbg{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px;z-index:1100;}
#hbg span{display:block;width:24px;height:1.5px;background:rgba(255,255,255,0.85);transition:all 0.3s;}
#hbg.on span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
#hbg.on span:nth-child(2){opacity:0;}
#hbg.on span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* ── MOBILE NAV ── */
#mnav{position:fixed;inset:0;background:var(--navy);z-index:1050;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:44px;transform:translateX(100%);transition:transform 0.4s cubic-bezier(0.77,0,0.175,1);}
#mnav.on{transform:translateX(0);}
#mnav a{font-family:'Cormorant Garamond',serif;font-size:clamp(1.7rem,5vw,2.6rem);font-weight:300;letter-spacing:0.12em;color:var(--white);text-decoration:none;transition:color 0.25s;}
#mnav a:hover{color:var(--gold);}

/* ── HERO ── */
.hero{position:relative;height:100svh;min-height:640px;display:flex;flex-direction:column;justify-content:center;overflow:hidden;background:var(--navy);}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center 30%;background-repeat:no-repeat;transform:scale(1.03);transition:transform 10s ease;}
.hero:hover .hero-bg{transform:scale(1);}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,20,38,0.88) 0%,rgba(10,20,38,0.6) 55%,rgba(0,0,0,0.25) 100%);}
.hero-content{position:relative;z-index:2;padding:clamp(110px,16vh,180px) clamp(28px,5.5vw,96px) clamp(90px,13vh,160px);}
.hero-tag{font-family:'Barlow',sans-serif;font-size:0.68rem;letter-spacing:0.38em;text-transform:uppercase;color:var(--gold);margin-bottom:32px;}
.hero-title{font-family:'Noto Serif JP','Cormorant Garamond',serif;font-size:clamp(3rem,6.5vw,6rem);font-weight:300;line-height:1.25;color:var(--white);margin-bottom:24px;letter-spacing:0.02em;}
.hero-title .accent{color:var(--gold);}
.hero-en{font-family:'Cormorant Garamond',serif;font-size:clamp(0.78rem,1.2vw,1rem);letter-spacing:0.32em;color:rgba(255,255,255,0.3);margin-bottom:40px;}
.hero-sub{font-size:clamp(0.85rem,1.2vw,0.95rem);line-height:2.0;color:rgba(255,255,255,0.5);max-width:420px;margin-bottom:52px;}
.hero-cta{display:inline-flex;align-items:center;gap:16px;border:1px solid rgba(255,255,255,0.35);color:var(--white);text-decoration:none;font-family:'Barlow',sans-serif;font-size:0.7rem;letter-spacing:0.24em;text-transform:uppercase;font-weight:600;padding:17px 44px;transition:all 0.35s;}
.hero-cta:hover{background:var(--gold);border-color:var(--gold);color:var(--black);}
.hero-stats{position:absolute;bottom:0;left:0;right:0;z-index:2;display:flex;border-top:1px solid rgba(184,150,62,0.15);background:rgba(10,20,38,0.65);backdrop-filter:blur(12px);}
.hero-stat{flex:1;padding:22px 24px;border-right:1px solid rgba(184,150,62,0.08);text-align:center;}
.hero-stat:last-child{border-right:none;}
.hero-stat-num{font-family:'Cormorant Garamond',serif;font-size:1.9rem;font-weight:300;color:var(--gold);line-height:1;}
.hero-stat-label{font-family:'Barlow',sans-serif;font-size:0.56rem;letter-spacing:0.2em;text-transform:uppercase;color:rgba(255,255,255,0.3);margin-top:7px;}
.hero-scroll{position:absolute;bottom:110px;right:clamp(28px,4.5vw,64px);z-index:2;display:flex;flex-direction:column;align-items:center;gap:12px;font-family:'Barlow',sans-serif;font-size:0.55rem;letter-spacing:0.32em;text-transform:uppercase;color:rgba(255,255,255,0.25);}
.hero-scroll-line{width:1px;height:52px;background:linear-gradient(to bottom,var(--gold),transparent);animation:scrollPulse 2.2s ease-in-out infinite;}
@keyframes scrollPulse{0%,100%{opacity:0.2;transform:scaleY(0.35);transform-origin:top;}60%{opacity:1;transform:scaleY(1);transform-origin:top;}}

/* ── SECTION SHARED ── */
.section-label{font-family:'Barlow',sans-serif;font-size:0.64rem;letter-spacing:0.36em;text-transform:uppercase;color:var(--gold);margin-bottom:18px;display:flex;align-items:center;gap:14px;}
.section-label::before{content:'';width:22px;height:1px;background:var(--gold);}
.section-title{font-family:'Noto Serif JP','Cormorant Garamond',serif;font-size:clamp(2rem,3.8vw,3.2rem);font-weight:300;line-height:1.2;letter-spacing:0.02em;}
.section-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:64px;padding-bottom:32px;border-bottom:1px solid var(--border);}
.section-desc{font-size:0.82rem;color:var(--gray);text-align:right;line-height:2.0;}

/* ── PHILOSOPHY ── */
.philosophy{display:grid;grid-template-columns:5fr 7fr;border-top:1px solid var(--border);}
.philosophy-left{padding:clamp(72px,9vw,120px) clamp(28px,4.5vw,72px);border-right:1px solid var(--border);display:flex;flex-direction:column;justify-content:center;background:var(--off-white);}
.philosophy-right{padding:clamp(72px,9vw,120px) clamp(32px,5.5vw,88px);display:flex;flex-direction:column;justify-content:center;gap:32px;}
.phil-quote{font-family:'Noto Serif JP',serif;font-size:clamp(1.15rem,2vw,1.7rem);font-weight:300;line-height:2.0;border-left:2px solid var(--gold);padding-left:28px;color:var(--text);}
.phil-body{font-size:clamp(0.85rem,1.1vw,0.92rem);line-height:2.2;color:var(--gray);max-width:540px;}

/* ── BUSINESS ── */
.business-section{padding:var(--section-pad);}
.biz-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(0,0,0,0.07);}
.biz-card{background:var(--white);padding:clamp(40px,4.5vw,64px) clamp(32px,4vw,56px);position:relative;overflow:hidden;transition:background 0.4s;}
.biz-card:hover{background:#faf8f3;}
.biz-card::before{content:'';position:absolute;top:0;left:0;width:2px;height:0;background:var(--gold);transition:height 0.5s ease;}
.biz-card:hover::before{height:100%;}
.biz-num{font-family:'Cormorant Garamond',serif;font-size:3.6rem;font-weight:300;color:rgba(184,150,62,0.08);line-height:1;margin-bottom:20px;}
.biz-cat{font-family:'Barlow',sans-serif;font-size:0.6rem;letter-spacing:0.32em;text-transform:uppercase;color:var(--gold);margin-bottom:14px;}
.biz-name{font-family:'Noto Serif JP',serif;font-size:clamp(1.1rem,1.8vw,1.5rem);font-weight:400;color:var(--dark);margin-bottom:8px;line-height:1.3;}
.biz-name-en{font-family:'Barlow',sans-serif;font-size:0.62rem;letter-spacing:0.22em;text-transform:uppercase;color:var(--gray);margin-bottom:24px;}
.biz-div{width:28px;height:1px;background:var(--gold);margin-bottom:24px;}
.biz-desc{font-size:0.88rem;line-height:2.0;color:var(--gray);margin-bottom:28px;}
.biz-location{font-size:0.78rem;color:var(--gray);margin-bottom:28px;line-height:1.6;}
.biz-link,.biz-link-line{display:inline-flex;align-items:center;gap:8px;font-family:'Barlow',sans-serif;font-size:0.66rem;letter-spacing:0.2em;text-transform:uppercase;font-weight:600;text-decoration:none;padding:12px 28px;transition:all 0.3s;}
.biz-link{background:var(--navy);color:var(--white);}
.biz-link:hover{background:var(--gold);color:var(--black);}
.biz-link-line{border:1px solid var(--gold);color:var(--gold);}
.biz-link-line:hover{background:var(--gold);color:var(--black);}

/* ── COLUMN ── */
.column-section{padding:var(--section-pad);background:var(--off-white);}
.column-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:rgba(0,0,0,0.06);}
.col-card{background:var(--white);display:flex;flex-direction:column;transition:box-shadow 0.3s;}
.col-card:hover{box-shadow:0 8px 40px rgba(0,0,0,0.1);}
.col-thumb{height:200px;background:var(--navy);position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;}
.col-thumb-tag{font-family:'Barlow',sans-serif;font-size:0.7rem;letter-spacing:0.28em;text-transform:uppercase;color:var(--white);font-weight:600;z-index:1;}
.col-thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(13,27,42,0.85),rgba(184,150,62,0.25));}
.col-body{padding:28px 28px 32px;flex:1;display:flex;flex-direction:column;}
.col-meta{display:flex;gap:12px;align-items:center;margin-bottom:14px;}
.col-cat{font-family:'Barlow',sans-serif;font-size:0.58rem;letter-spacing:0.22em;text-transform:uppercase;color:var(--gold);}
.col-date{font-size:0.72rem;color:var(--gray);}
.col-title{font-family:'Noto Serif JP',serif;font-size:1rem;font-weight:400;line-height:1.65;color:var(--dark);margin-bottom:14px;flex:1;}
.col-excerpt{font-size:0.82rem;line-height:1.9;color:var(--gray);}

/* ── PRESIDENT ── */
.president-section{display:grid;grid-template-columns:5fr 7fr;border-top:1px solid var(--border);}
.president-left{position:relative;overflow:hidden;background:var(--navy);min-height:480px;}
.president-left img{width:100%;height:100%;object-fit:cover;object-position:center top;opacity:0.85;}
.president-right{padding:clamp(72px,9vw,120px) clamp(32px,5.5vw,88px);display:flex;flex-direction:column;justify-content:center;gap:28px;}
.pres-quote{font-family:'Noto Serif JP',serif;font-size:clamp(1.1rem,1.8vw,1.55rem);font-weight:300;line-height:2.0;color:var(--dark);}
.pres-body{font-size:clamp(0.85rem,1.1vw,0.92rem);line-height:2.2;color:var(--gray);max-width:520px;}
.pres-name{font-family:'Noto Serif JP',serif;font-size:1.1rem;font-weight:400;color:var(--dark);}
.pres-title{font-family:'Barlow',sans-serif;font-size:0.62rem;letter-spacing:0.2em;text-transform:uppercase;color:var(--gray);}

/* ── COMPANY ── */
.company-section{padding:var(--section-pad);}
.company-header{margin-bottom:56px;padding-bottom:28px;border-bottom:1px solid var(--border);}
.company-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(32px,4vw,64px);}
.info-table{width:100%;border-collapse:collapse;}
.info-table th,.info-table td{padding:18px 0;border-bottom:1px solid var(--border);font-size:0.88rem;line-height:1.7;vertical-align:top;}
.info-table th{width:36%;color:var(--gray);font-weight:400;font-family:'Barlow',sans-serif;font-size:0.7rem;letter-spacing:0.1em;text-transform:uppercase;}
.info-table td{color:var(--dark);}

/* ── CONTACT ── */
.contact-section{position:relative;padding:clamp(100px,13vw,180px) clamp(28px,5.5vw,96px);background:var(--navy);overflow:hidden;text-align:center;}
.contact-bg{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;}
.contact-bg-text{font-family:'Cormorant Garamond',serif;font-size:clamp(8rem,18vw,22rem);font-weight:300;letter-spacing:0.18em;color:rgba(255,255,255,0.03);line-height:1;user-select:none;}
.contact-inner{position:relative;z-index:1;}
.contact-title{font-family:'Noto Serif JP','Cormorant Garamond',serif;font-size:clamp(2.2rem,4.5vw,4rem);font-weight:300;color:var(--white);margin-bottom:24px;letter-spacing:0.04em;}
.contact-sub{font-size:clamp(0.85rem,1.2vw,0.95rem);line-height:2.2;color:rgba(255,255,255,0.45);margin-bottom:52px;}
.contact-buttons{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;}
.btn-gold{display:inline-flex;align-items:center;gap:12px;background:var(--gold);color:var(--black);text-decoration:none;font-family:'Barlow',sans-serif;font-size:0.7rem;letter-spacing:0.2em;text-transform:uppercase;font-weight:700;padding:18px 48px;transition:all 0.3s;}
.btn-gold:hover{background:var(--gold-light);}
.btn-outline{display:inline-flex;align-items:center;gap:12px;border:1px solid rgba(255,255,255,0.25);color:rgba(255,255,255,0.7);text-decoration:none;font-family:'Barlow',sans-serif;font-size:0.7rem;letter-spacing:0.2em;text-transform:uppercase;padding:18px 48px;transition:all 0.3s;}
.btn-outline:hover{border-color:var(--white);color:var(--white);}

/* ── FOOTER ── */
footer{background:var(--black);padding:52px clamp(28px,5.5vw,96px);display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.footer-logo img{height:36px;width:auto;opacity:0.7;transition:opacity 0.25s;}
.footer-logo img:hover{opacity:1;}
.footer-right{text-align:right;}
.footer-info{font-size:0.75rem;color:rgba(255,255,255,0.3);line-height:2.0;margin-bottom:10px;}
.footer-info a{color:inherit;text-decoration:none;}
.footer-copy{font-family:'Barlow',sans-serif;font-size:0.62rem;letter-spacing:0.16em;color:rgba(255,255,255,0.2);}
.photo-credit{font-size:0.62rem;color:rgba(255,255,255,0.1);margin-top:6px;}

/* ── ANIMATIONS ── */
@keyframes fadeUp{from{opacity:1;transform:translateY(0);}to{opacity:1;transform:translateY(0);}}
@keyframes scrollPulse{0%,100%{opacity:0.2;transform:scaleY(0.35);transform-origin:top;}60%{opacity:1;transform:scaleY(1);transform-origin:top;}}

/* ── RESPONSIVE ── */
@media(max-width:960px){
  nav{padding:15px 20px;}
  .nav-links{display:none;}
  #hbg{display:flex;}
  .hero-content{padding:120px 24px 100px;}
  .hero-stats{display:none;}
  .hero-scroll{display:none;}
  .philosophy{grid-template-columns:1fr;}
  .philosophy-left{padding:60px 24px;border-right:none;border-bottom:1px solid var(--border);}
  .philosophy-right{padding:60px 24px;}
  .business-section,.company-section,.contact-section,.column-section{padding:80px 24px;}
  .biz-grid{grid-template-columns:1fr;}
  .column-grid{grid-template-columns:1fr;}
  .president-section{grid-template-columns:1fr;}
  .president-left{min-height:300px;}
  .president-right{padding:60px 24px;}
  .company-grid{grid-template-columns:1fr;}
  .section-header{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-desc{text-align:left;}
  footer{flex-direction:column;align-items:flex-start;}
  .footer-right{text-align:left;}
}
@media(max-width:480px){
  .hero-overlay{display:none;}
  .hero-content{padding:40px 24px;background:var(--navy);color:var(--white);}
}