/* =========================================================
   DESIGN TOKENS
   ========================================================= */
:root{
  /* Colors */
  --c-navy-900:#0B1E3F;
  --c-navy-800:#12285A;
  --c-blue-700:#1E4D8C;
  --c-blue-600:#2A60A8;
  --c-blue-500:#3A78C2;
  --c-blue-400:#5B94D6;
  --c-blue-100:#E8F0FA;
  --c-blue-050:#F3F7FC;
  --c-ink-900:#0F1621;
  --c-ink-700:#1A2332;
  --c-ink-500:#4A5568;
  --c-ink-400:#6B7280;
  --c-ink-300:#9CA3AF;
  --c-line:#E5E9F0;
  --c-line-dark:#1a2a48;
  --c-paper:#FAFBFC;
  --c-white:#FFFFFF;
  --c-accent:#E3B23C;

  /* Type */
  --ff-jp:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;
  --ff-en:"Inter","Helvetica Neue",sans-serif;

  /* Sizing */
  --container:1200px;
  --container-narrow:960px;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-lg:12px;

  /* Motion */
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* =========================================================
   RESET / BASE
   ========================================================= */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff-jp);
  font-weight:400;
  color:var(--c-ink-900);
  background:var(--c-paper);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"palt";
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none;padding:0;margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.4;letter-spacing:.02em}
p{margin:0}
button{font-family:inherit}

.en{font-family:var(--ff-en);letter-spacing:.08em}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
@media (max-width:640px){
  .container{padding:0 20px}
}

/* =========================================================
   HEADER / NAV
   ========================================================= */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:50;
  background:rgba(255,255,255,.0);
  transition:background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--c-line);
  box-shadow:0 1px 0 rgba(11,30,63,.04);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
}
@media (max-width:640px){.nav-inner{height:60px}}

/* Logo */
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--c-white);
  transition:color .3s var(--ease);
}
.site-header.scrolled .logo{color:var(--c-navy-900)}
.logo-mark{
  width:40px;height:40px;
  border-radius:8px;
  background:linear-gradient(135deg,var(--c-blue-600),var(--c-navy-900));
  display:grid;place-items:center;
  position:relative;
  flex-shrink:0;
  box-shadow:0 4px 12px rgba(30,77,140,.25);
}
.logo-mark svg{width:22px;height:22px}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text .jp{font-size:15px;font-weight:700;letter-spacing:.04em}
.logo-text .en{font-size:9px;color:currentColor;opacity:.7;margin-top:3px;font-weight:500}
@media (max-width:640px){
  .logo-mark{width:36px;height:36px}
  .logo-mark svg{width:20px;height:20px}
  .logo-text .jp{font-size:13px}
  .logo-text .en{font-size:8px}
}

/* Nav links */
.nav-links{
  display:flex;
  align-items:center;
  gap:36px;
}
.nav-links a{
  font-size:14px;
  font-weight:500;
  color:var(--c-white);
  position:relative;
  padding:6px 0;
  transition:color .3s var(--ease);
}
.site-header.scrolled .nav-links a{color:var(--c-ink-700)}
.nav-links a .en-label{
  display:block;
  font-size:10px;
  font-family:var(--ff-en);
  opacity:.65;
  font-weight:500;
  letter-spacing:.12em;
  margin-top:2px;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;right:50%;
  bottom:0;
  height:2px;
  background:var(--c-blue-500);
  transition:left .25s var(--ease), right .25s var(--ease);
}
.nav-links a:hover::after{left:0;right:0}
@media (max-width:820px){.nav-links{display:none}}

/* Hamburger */
.hamburger{
  display:none;
  width:44px;height:44px;
  border:none;background:transparent;
  cursor:pointer;
  padding:0;
  position:relative;
  color:var(--c-white);
  transition:color .3s var(--ease);
}
.site-header.scrolled .hamburger{color:var(--c-ink-700)}
.hamburger span{
  position:absolute;
  left:10px;right:10px;height:2px;
  background:currentColor;
  transition:transform .3s var(--ease), top .3s var(--ease), opacity .2s var(--ease);
}
.hamburger span:nth-child(1){top:15px}
.hamburger span:nth-child(2){top:21px}
.hamburger span:nth-child(3){top:27px}
.hamburger.open span:nth-child(1){top:21px;transform:rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){top:21px;transform:rotate(-45deg)}
@media (max-width:820px){.hamburger{display:block}}

/* Mobile menu */
.mobile-menu{
  position:fixed;
  inset:0;
  background:var(--c-navy-900);
  z-index:40;
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  pointer-events:none;
  transition:opacity .3s var(--ease);
}
.mobile-menu.open{opacity:1;pointer-events:auto}
.mobile-menu ul{
  display:flex;flex-direction:column;
  gap:28px;text-align:center;
}
.mobile-menu a{
  color:#fff;
  font-size:22px;
  font-weight:700;
  letter-spacing:.1em;
}
.mobile-menu a .en-label{
  display:block;
  font-size:11px;
  font-family:var(--ff-en);
  letter-spacing:.2em;
  opacity:.6;
  margin-top:4px;
  font-weight:500;
}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;
  min-height:100vh;
  min-height:100svh;
  display:flex;
  align-items:center;
  background:var(--c-navy-900);
  color:#fff;
  overflow:hidden;
  padding:120px 0 80px;
}
.hero-bg{
  position:absolute;
  inset:0;
  overflow:hidden;
}
.hero-bg svg{width:100%;height:100%}
.hero-overlay{
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg, rgba(11,30,63,.2) 0%, rgba(11,30,63,.55) 70%, rgba(11,30,63,.85) 100%),
    radial-gradient(ellipse at 20% 50%, rgba(30,77,140,.5) 0%, transparent 60%);
}
.hero-content{
  position:relative;
  z-index:2;
  width:100%;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-family:var(--ff-en);
  font-size:12px;
  font-weight:600;
  letter-spacing:.25em;
  color:var(--c-blue-400);
  margin-bottom:28px;
  text-transform:uppercase;
}
.hero-eyebrow::before{
  content:"";
  width:40px;height:1px;
  background:var(--c-blue-400);
}
.hero h1{
  font-size:clamp(32px, 5.2vw, 64px);
  font-weight:900;
  letter-spacing:.04em;
  line-height:1.25;
  margin-bottom:24px;
  text-wrap:balance;
}
.hero h1 .accent{
  background:linear-gradient(135deg, #a7c6ff, #fff);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-en-name{
  font-family:var(--ff-en);
  font-size:13px;
  letter-spacing:.3em;
  color:rgba(255,255,255,.55);
  text-transform:uppercase;
  font-weight:500;
  margin-bottom:40px;
}
.hero-company{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding-top:28px;
  margin-top:36px;
  border-top:1px solid rgba(255,255,255,.18);
  max-width:560px;
}
.hero-company-jp{
  font-size:clamp(16px, 1.8vw, 20px);
  font-weight:700;
  color:#fff;
  letter-spacing:.08em;
}
.hero-company-en{
  font-family:var(--ff-en);
  font-size:12px;
  letter-spacing:.3em;
  color:rgba(255,255,255,.6);
  text-transform:uppercase;
  font-weight:500;
}
.hero-lead{
  font-size:clamp(15px, 1.6vw, 18px);
  color:rgba(255,255,255,.82);
  max-width:560px;
  line-height:2;
  font-weight:400;
}
.hero-scroll{
  position:absolute;
  left:50%;
  bottom:32px;
  transform:translateX(-50%);
  color:rgba(255,255,255,.65);
  font-family:var(--ff-en);
  font-size:10px;
  letter-spacing:.3em;
  text-transform:uppercase;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  z-index:2;
}
.hero-scroll::after{
  content:"";
  width:1px;height:48px;
  background:linear-gradient(to bottom, rgba(255,255,255,.6), transparent);
  animation:scroll-hint 2s var(--ease) infinite;
  transform-origin:top;
}
@keyframes scroll-hint{
  0%{transform:scaleY(0)}
  50%{transform:scaleY(1)}
  100%{transform:scaleY(0);transform-origin:bottom}
}
@media (max-width:640px){
  .hero{padding:100px 0 60px}
  .hero-scroll{display:none}
}

/* =========================================================
   SECTION — generic
   ========================================================= */
section{
  padding:120px 0;
  position:relative;
}
@media (max-width:640px){
  section{padding:80px 0}
}
.section-head{
  text-align:center;
  margin-bottom:72px;
}
.section-eyebrow{
  display:inline-block;
  font-family:var(--ff-en);
  font-size:12px;
  font-weight:600;
  letter-spacing:.3em;
  color:var(--c-blue-700);
  text-transform:uppercase;
  margin-bottom:16px;
  position:relative;
  padding:0 28px;
}
.section-eyebrow::before,
.section-eyebrow::after{
  content:"";
  position:absolute;
  top:50%;
  width:16px;height:1px;
  background:var(--c-blue-700);
}
.section-eyebrow::before{left:0}
.section-eyebrow::after{right:0}
.section-title{
  font-size:clamp(26px, 3.2vw, 38px);
  color:var(--c-ink-900);
  font-weight:900;
  letter-spacing:.06em;
}
@media (max-width:640px){.section-head{margin-bottom:48px}}

/* =========================================================
   PHILOSOPHY
   ========================================================= */
.philosophy{
  background:
    linear-gradient(180deg, var(--c-paper) 0%, #fff 100%);
  position:relative;
}
.philosophy::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  width:1px;height:80px;
  background:linear-gradient(to bottom, transparent, var(--c-blue-500));
  transform:translateX(-50%);
}
.philosophy-body{
  max-width:860px;
  margin:0 auto;
  text-align:center;
}
.philosophy-text{
  font-size:clamp(20px, 2.6vw, 32px);
  font-weight:700;
  line-height:2.1;
  letter-spacing:.08em;
  color:var(--c-navy-900);
  text-wrap:balance;
}
.philosophy-text .mark{
  display:inline;
  background:linear-gradient(transparent 62%, rgba(58,120,194,.22) 62%);
  padding:0 4px;
}
.philosophy-caption{
  margin-top:40px;
  font-size:14px;
  color:var(--c-ink-500);
  line-height:2;
  max-width:600px;
  margin-left:auto;
  margin-right:auto;
}

/* =========================================================
   BUSINESS
   ========================================================= */
.business{
  background:var(--c-blue-050);
  position:relative;
  overflow:hidden;
}
.business::before{
  content:"";
  position:absolute;
  top:-100px;right:-100px;
  width:400px;height:400px;
  background:radial-gradient(circle, rgba(30,77,140,.08), transparent 70%);
  border-radius:50%;
  pointer-events:none;
}
.business-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:24px;
  position:relative;
}
@media (max-width:900px){.business-grid{grid-template-columns:1fr;gap:20px}}
.biz-card{
  background:#fff;
  border-radius:var(--radius-lg);
  padding:48px 36px;
  border:1px solid var(--c-line);
  position:relative;
  transition:transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
  display:flex;
  flex-direction:column;
}
.biz-card:hover{
  transform:translateY(-6px);
  box-shadow:0 20px 48px -12px rgba(11,30,63,.18);
  border-color:var(--c-blue-400);
}
.biz-card .biz-num{
  font-family:var(--ff-en);
  font-size:13px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--c-blue-700);
  margin-bottom:20px;
  display:flex;
  align-items:center;
  gap:10px;
}
.biz-card .biz-num::before{
  content:"";
  width:24px;height:1px;
  background:var(--c-blue-700);
}
.biz-icon{
  width:56px;height:56px;
  border-radius:12px;
  background:linear-gradient(135deg, var(--c-blue-700), var(--c-navy-900));
  display:grid;place-items:center;
  color:#fff;
  margin-bottom:28px;
  box-shadow:0 8px 20px -6px rgba(30,77,140,.4);
}
.biz-icon svg{width:28px;height:28px}
.biz-title{
  font-size:19px;
  font-weight:700;
  color:var(--c-navy-900);
  line-height:1.5;
  margin-bottom:20px;
  letter-spacing:.02em;
}
.biz-desc{
  list-style:none;padding:0;margin:0;
  display:flex;flex-direction:column;gap:10px;
}
.biz-desc li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--c-ink-500);
  line-height:1.8;
}
.biz-desc li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:8px;height:1px;
  background:var(--c-blue-500);
}

/* =========================================================
   COMPANY INFO
   ========================================================= */
.company{
  background:#fff;
}
.company-wrap{
  max-width:var(--container-narrow);
  margin:0 auto;
}
.company-table{
  width:100%;
  border-collapse:collapse;
  border-top:1px solid var(--c-line);
}
.company-table tr{
  border-bottom:1px solid var(--c-line);
}
.company-table th,
.company-table td{
  text-align:left;
  padding:28px 20px;
  vertical-align:top;
  font-size:15px;
  line-height:1.9;
}
.company-table th{
  width:220px;
  font-weight:700;
  color:var(--c-navy-900);
  letter-spacing:.08em;
  font-size:14px;
  white-space:nowrap;
  position:relative;
}
.company-table th .en-sub{
  display:block;
  font-family:var(--ff-en);
  font-size:10px;
  color:var(--c-ink-400);
  font-weight:500;
  letter-spacing:.2em;
  margin-top:4px;
  text-transform:uppercase;
}
.company-table td{
  color:var(--c-ink-700);
}
@media (max-width:640px){
  .company-table th,.company-table td{display:block;padding:14px 0}
  .company-table th{
    width:auto;
    padding-bottom:4px;
    border-bottom:none;
  }
  .company-table td{padding-top:0;padding-bottom:24px}
  .company-table tr{padding:16px 0}
}
.company-table td .en-sub{
  font-family:var(--ff-en);
  font-size:12px;
  color:var(--c-ink-400);
  letter-spacing:.1em;
}
.badge-tbd{
  display:inline-block;
  padding:4px 12px;
  background:rgba(227,178,60,.12);
  color:#8F6A14;
  border:1px solid rgba(227,178,60,.35);
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.05em;
}
.hours-grid{
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.hours-grid .dot{
  display:inline-block;
  width:6px;height:6px;border-radius:50%;
  background:#22C55E;
  box-shadow:0 0 0 3px rgba(34,197,94,.2);
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{
  background:var(--c-navy-900);
  color:rgba(255,255,255,.8);
  padding:72px 0 32px;
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg, transparent, var(--c-blue-500), transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr 1fr 1fr;
  gap:48px;
  margin-bottom:56px;
}
@media (max-width:820px){
  .footer-grid{grid-template-columns:1fr;gap:36px}
}
.footer-brand .logo{color:#fff;margin-bottom:20px}
.footer-brand .logo-mark{
  background:linear-gradient(135deg, var(--c-blue-500), var(--c-blue-700));
}
.footer-brand p{
  font-size:13px;
  color:rgba(255,255,255,.6);
  line-height:1.9;
  margin-top:16px;
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.15em;
  color:rgba(255,255,255,.9);
  margin-bottom:20px;
  font-weight:700;
}
.footer-col h4 .en-sub{
  display:block;
  font-family:var(--ff-en);
  font-size:10px;
  color:var(--c-blue-400);
  font-weight:500;
  letter-spacing:.2em;
  margin-top:4px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{
  font-size:13px;
  color:rgba(255,255,255,.65);
  transition:color .2s var(--ease);
}
.footer-col ul li a:hover{color:#fff}
.footer-col p{
  font-size:13px;
  color:rgba(255,255,255,.6);
  line-height:1.9;
}
.footer-bottom{
  padding-top:32px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom .copy{
  font-family:var(--ff-en);
  font-size:11px;
  color:rgba(255,255,255,.4);
  letter-spacing:.15em;
}
.footer-bottom .back-top{
  font-family:var(--ff-en);
  font-size:11px;
  letter-spacing:.2em;
  color:rgba(255,255,255,.5);
  display:inline-flex;align-items:center;gap:8px;
  transition:color .2s var(--ease);
}
.footer-bottom .back-top:hover{color:#fff}
.footer-bottom .back-top::before{content:"↑"}

/* =========================================================
   REVEAL ANIMATION
   ========================================================= */
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}

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