@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&family=Noto+Sans+KR:wght@300;400;500;700;900&family=Gamja+Flower&display=swap');

:root{
  --navy-950:#00081a;
  --navy-900:#00142f;
  --navy-800:#02255a;
  --navy-700:#0a3d7a;
  --navy-600:#154f96;
  --blue-accent:#2e8fe0;
  --teal:#1bc8b8;
  --ice:#cfe6ff;
  --white:#ffffff;
  --muted:rgba(255,255,255,.68);
  --faint:rgba(255,255,255,.42);
  --max:1160px;
}

*{margin:0;padding:0;box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  font-family:'Noto Sans KR','Poppins',sans-serif;
  background:var(--navy-900);
  color:var(--white);
  line-height:1.7;
  overflow-x:hidden;
}

.eng{font-family:'Poppins','Noto Sans KR',sans-serif}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
button{font:inherit;cursor:pointer}

.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:linear-gradient(180deg, rgba(0,10,30,.72) 0%, rgba(0,10,30,0) 100%);
  backdrop-filter:blur(6px);
  transition:background .3s ease;
}
.site-header.solid{
  background:rgba(0,15,40,.92);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:78px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:26px;width:auto}

.nav-links{display:flex;align-items:center;gap:40px}
.nav-links a{
  font-family:'Poppins',sans-serif;
  font-size:14px;letter-spacing:.5px;font-weight:500;
  color:var(--muted);
  position:relative;
  padding:6px 0;
  transition:color .2s ease;
}
.nav-links a:hover,.nav-links a.active{color:var(--white)}
.nav-links a.active::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--teal);border-radius:2px;
}

.nav-toggle{
  display:none;
  width:40px;height:40px;border-radius:8px;border:none;background:transparent;
  position:relative;
  z-index:110;
}
.nav-toggle span{
  display:block;width:22px;height:2px;background:var(--white);margin:0 auto;
  position:relative;transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:'';position:absolute;left:0;width:22px;height:2px;background:var(--white);transition:transform .25s ease,top .25s ease;
}
.nav-toggle span::before{top:-7px}
.nav-toggle span::after{top:7px}
.nav-toggle.open span{background:transparent}
.nav-toggle.open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.open span::after{top:0;transform:rotate(-45deg)}

/* ---------- Sky band (home, top) ---------- */
.sky-band{
  position:relative;
  height:380px;
  overflow:hidden;
  background:linear-gradient(180deg, var(--navy-700) 0%, var(--navy-800) 100%);
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:760px;
  display:flex;flex-direction:column;justify-content:center;
  background:
    radial-gradient(ellipse 900px 600px at 78% 38%, rgba(46,143,224,.25), transparent 60%),
    linear-gradient(160deg, #0a3568 0%, var(--navy-900) 45%, var(--navy-800) 100%);
  overflow:hidden;
}
.hero-orb{
  position:absolute;top:0;right:0;height:100%;width:62%;
  background-image:url('assets/hero-orb.png');
  background-repeat:no-repeat;
  background-position:right center;
  background-size:contain;
  opacity:.95;
  pointer-events:none;
  z-index:0;
}
.hero-inner{position:relative;z-index:2;padding:90px 0 60px}
.hero-mark{width:min(430px,72vw);margin-bottom:26px}
.hero-tagline{
  font-family:'Poppins',sans-serif;font-weight:300;font-size:clamp(16px,2.4vw,22px);
  letter-spacing:1px;color:var(--ice);margin-bottom:26px;
}
.hero-rule{width:56px;height:2px;background:var(--teal);margin-bottom:26px}
.hero-desc{
  font-size:clamp(15px,1.8vw,18px);color:var(--muted);font-weight:400;max-width:480px;
}
.hero-desc strong{color:var(--white);font-weight:700}

.hero-pillars{
  position:relative;z-index:2;
  width:min(640px,90vw);
  margin:48px auto 40px;
}
.hero-pillars img{width:100%;height:auto;display:block}

.section-eyebrow{
  font-family:'Poppins',sans-serif;font-size:12px;letter-spacing:4px;color:var(--teal);
  text-transform:uppercase;margin-bottom:14px;
}
.section-title{
  font-family:'Poppins',sans-serif;font-weight:300;font-size:clamp(26px,4vw,40px);
  margin-bottom:16px;color:var(--white);
}
.section-title b{font-weight:600;color:var(--teal)}
.section-lead{color:var(--muted);max-width:560px;margin-bottom:56px;font-size:16px}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  position:relative;
  padding:190px 0 90px;
  background:linear-gradient(165deg, var(--navy-950) 0%, var(--navy-800) 100%);
  overflow:hidden;
}
.page-hero .wrap{position:relative;z-index:2}
.page-hero-rule{width:56px;height:2px;background:var(--teal);margin:18px 0 26px}
.page-hero h1{
  font-family:'Poppins',sans-serif;font-weight:300;font-size:clamp(30px,5vw,52px);
  letter-spacing:.5px;
}
.page-hero h1 b{font-weight:600;color:var(--teal)}
.page-hero .sub{color:var(--muted);margin-top:18px;max-width:560px;font-size:16px}

.cloud-l,.cloud-r{position:absolute;top:0;height:100%;width:26%;pointer-events:none;opacity:.9}
.cloud-l{left:0;background:url('assets/vision-cloud-l.png') left center/cover no-repeat}
.cloud-r{right:0;background:url('assets/vision-cloud-r.png') right center/cover no-repeat}
.sky-band .cloud-l,.sky-band .cloud-r{height:100%;width:55%;opacity:.75}

/* ---------- Generic content section ---------- */
.section{padding:90px 0;position:relative}
.section.alt{background:var(--navy-950)}

/* ---------- CEO page ---------- */
.ceo-layout{display:grid;grid-template-columns:220px 1fr;gap:60px;align-items:start}
.ceo-portrait{
  width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%, var(--navy-600), var(--navy-950) 75%);
  border:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.35);
}
.ceo-portrait svg{width:96px;height:96px}
.ceo-quote{
  font-family:'Poppins',sans-serif;font-weight:300;font-size:clamp(20px,2.6vw,28px);
  color:var(--ice);line-height:1.5;margin-bottom:36px;position:relative;padding-left:26px;
  border-left:2px solid var(--teal);
}
.ceo-body p{color:var(--muted);font-size:16px;margin-bottom:22px;max-width:640px}
.ceo-body strong{color:var(--white)}
.signature{margin-top:44px}
.signature .role{font-size:13px;color:var(--faint);letter-spacing:1px;margin-bottom:6px;font-family:'Poppins',sans-serif}
.signature .name{font-size:22px;font-weight:700}
.signature .name span{font-weight:300;color:var(--muted);font-size:16px;margin-left:10px;font-family:'Poppins',sans-serif}
.signature .name .sig-kr{font-family:'Gamja Flower',cursive;color:rgba(27,200,184,.5);font-size:31px;font-weight:400;line-height:1;margin-left:10px;vertical-align:middle}

/* ---------- Vision pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid rgba(255,255,255,.08)}
.pillar{padding:44px 30px;border-right:1px solid rgba(255,255,255,.08)}
.pillar:last-child{border-right:none}
.pillar-icon{
  width:56px;height:56px;border-radius:50%;
  border:1px solid rgba(27,200,184,.4);background:rgba(27,200,184,.08);
  display:flex;align-items:center;justify-content:center;color:var(--teal);margin-bottom:22px;
}
.pillar-icon svg{width:26px;height:26px}
.pillar h3{font-family:'Poppins',sans-serif;font-size:18px;letter-spacing:.5px;margin-bottom:6px}
.pillar .kicker{font-size:12px;color:var(--faint);font-family:'Poppins',sans-serif;letter-spacing:1px;margin-bottom:16px}
.pillar p{color:var(--muted);font-size:14.5px}

.vision-statement{
  text-align:center;padding:70px 0;
}
.vision-statement .wordmark{font-family:'Poppins',sans-serif;font-weight:300;font-size:clamp(22px,3.4vw,34px);color:var(--white)}
.vision-statement .tag{font-family:'Poppins',sans-serif;font-size:13px;letter-spacing:3px;color:var(--faint);margin-top:8px;text-transform:uppercase}

/* ---------- Language toggle ---------- */
.lang-kr{display:none}
html[data-lang="kr"] .lang-kr{display:inline}
html[data-lang="kr"] .lang-en{display:none}

.lang-globe{width:14px;height:14px;color:var(--white);flex-shrink:0}

/* Korean-mode layout overrides */
html[data-lang="kr"] .ceo-layout{grid-template-columns:1fr}
html[data-lang="kr"] .page-hero .sub{max-width:780px;font-size:15px}
.lang-switch{display:flex;align-items:center;gap:4px;margin-left:20px;flex-shrink:0}
.lang-btn{
  background:none;border:none;color:var(--muted);cursor:pointer;
  font-size:12px;font-family:'Poppins',sans-serif;padding:4px 2px;
  letter-spacing:.3px;transition:color .2s;
}
.lang-btn:hover,.lang-btn.active{color:var(--white);font-weight:600}
.lang-sep{color:var(--faint);font-size:11px}

/* ---------- Technology page ---------- */
.tech-article{max-width:720px}
.tech-item{padding:48px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.tech-item:last-child{border-bottom:none}
.tech-item--goal{padding-left:28px;border-left:2px solid var(--teal);border-bottom:none}

/* ---------- Contact page ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:1.4fr 0.6fr;
  grid-template-rows:auto auto;
  gap:36px 50px;
}
.contact-text{grid-column:1;grid-row:1}
.contact-photo-col{grid-column:2;grid-row:1/3;display:flex;align-items:center}
.contact-grid>.contact-card{grid-column:1;grid-row:2}
.company-photo{width:100%;height:auto;display:block;border-radius:12px}
.contact-lead p{color:var(--muted);font-size:16px;margin-bottom:18px;max-width:520px}
.contact-card{
  background:linear-gradient(160deg, rgba(255,255,255,.05), rgba(255,255,255,.015));
  border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:38px;
}
.contact-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.contact-item:last-child{border-bottom:none}
.contact-item .ic{
  width:42px;height:42px;border-radius:50%;flex:none;
  background:rgba(27,200,184,.12);border:1px solid rgba(27,200,184,.3);
  display:flex;align-items:center;justify-content:center;color:var(--teal);
}
.contact-item .ic svg{width:19px;height:19px}
.contact-item .label{font-family:'Poppins',sans-serif;font-size:11px;letter-spacing:1.5px;color:var(--faint);text-transform:uppercase;margin-bottom:6px}
.contact-item .value{font-size:15.5px;color:var(--white)}
.contact-item .value a{border-bottom:1px solid rgba(255,255,255,.25)}
.contact-item .value a:hover{color:var(--teal);border-color:var(--teal)}
.map-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;
  font-family:'Poppins',sans-serif;font-size:13px;color:var(--teal);letter-spacing:.5px;
}
.map-link svg{width:14px;height:14px}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  background:linear-gradient(180deg, var(--navy-950) 0%, var(--navy-800) 100%);
  padding:64px 0 30px;
  overflow:hidden;
  min-height:380px;
  display:flex;align-items:center;
}
.footer-water{
  position:absolute;right:0;top:0;height:380px;width:55%;
  background:url('assets/footer-water.png') right center/cover no-repeat;
  opacity:.85;pointer-events:none;
}
.footer-inner{position:relative;z-index:2;text-align:center}
.footer-inner img{height:22px;margin:0 auto 8px}
.footer-inner .tag{font-family:'Poppins',sans-serif;font-size:12px;letter-spacing:3px;color:var(--faint);text-transform:uppercase;margin-bottom:22px}
.footer-rule{width:1px;height:26px;background:rgba(255,255,255,.2);margin:22px auto 22px}
.copyright{font-size:12px;color:var(--faint)}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .ceo-layout{grid-template-columns:1fr;}
  .ceo-portrait{width:140px;height:140px}
  .ceo-portrait svg{width:60px;height:60px}
  .pillars{grid-template-columns:1fr}
  .pillar{border-right:none;border-bottom:1px solid rgba(255,255,255,.08)}
  .contact-grid{grid-template-columns:1fr}
  .contact-text{grid-column:1;grid-row:1}
  .contact-photo-col{grid-column:1;grid-row:2;padding-top:0;display:flex;justify-content:center}
  .contact-photo-col .company-photo{width:67%}
  .contact-grid>.contact-card{grid-column:1;grid-row:3}
  .hero-orb{width:100%;opacity:.55}
}

@media (max-width:720px){
  .nav-toggle{display:block}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(78vw,320px);
    background:rgba(0,10,28,.98);backdrop-filter:blur(10px);
    flex-direction:column;align-items:flex-start;justify-content:center;gap:30px;
    padding:0 40px;
    transform:translateX(100%);transition:transform .3s ease;
    z-index:105;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{font-size:18px}
  .page-hero{padding:150px 0 60px}
  .footer-water{width:100%;opacity:.35}
  .sky-band{height:220px}
  .hero{min-height:440px}
  .site-footer{min-height:220px}
  .footer-water{height:220px}
}

@media (max-width:480px){
  .wrap{padding:0 20px}
  .hero-mark{width:78vw}
  .contact-card{padding:26px}
}