/* ==========================================================
   YEONYOUNG (mirror site) — shared stylesheet
   Dark premium corporate theme with gold accent
   ========================================================== */

:root{
  --bg: #0b0c0e;
  --bg-alt: #111318;
  --panel: #16181d;
  --border: rgba(255,255,255,0.08);
  --text: #eef0f2;
  --text-dim: #9aa0a8;
  --gold: #c9a24b;
  --gold-light: #e4c581;
  --maxw: 1200px;
  --radius: 4px;
  font-size: 16px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Noto Sans KR', sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4{
  font-family: 'Playfair Display', 'Noto Serif KR', serif;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 16px;
  letter-spacing: 0.01em;
}
p{ margin: 0 0 16px; color: var(--text-dim); }
a{ color: inherit; text-decoration: none; }
img{ max-width:100%; display:block; }
.container{ max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.eyebrow{
  display:inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 14px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--gold);
  color: var(--gold-light);
  background: transparent;
  cursor:pointer;
  transition: all .25s ease;
}
.btn:hover{ background: var(--gold); color:#111; }
.btn.solid{ background: var(--gold); color:#161616; }
.btn.solid:hover{ background: var(--gold-light); }

/* ---------- Header ---------- */
header.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 1000;
  background: rgba(11,12,14,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight:700;
  letter-spacing: 0.06em;
  color: var(--text);
}
.logo span{ color: var(--gold); }
.logo img.logo-mark{
  width: 34px; height: 34px; object-fit:contain; border-radius:4px;
}
.logo .logo-text{ display:flex; flex-direction:column; line-height:1.05; }
.logo .logo-text small{ font-family:'Inter',sans-serif; font-size:0.6rem; letter-spacing:0.15em; color:var(--text-dim); font-weight:600; }

.brand-mark-lg{ max-width: 340px; margin: 0 auto; border-radius:8px; }
.logo-frame{ height:110px; display:flex; align-items:flex-end; justify-content:center; margin:0 auto 14px; }
.division-logo{ width:auto; max-width:180px; max-height:100%; object-fit:contain; object-position:bottom; display:block; margin:0; }
.card h3.division-name{ color: var(--gold); font-size:1.25rem; margin:0 0 3px; letter-spacing:0.01em; }
.division-sub{ display:block; font-size:0.68rem; letter-spacing:0.22em; color: var(--gold); text-transform:uppercase; font-weight:600; margin-bottom:16px; }
nav.main-nav ul{
  list-style:none;
  display:flex;
  gap: 34px;
  margin:0; padding:0;
}
nav.main-nav a{
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  color: var(--text-dim);
  transition: color .2s;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
nav.main-nav a:hover, nav.main-nav a.active{
  color: var(--gold-light);
  border-bottom-color: var(--gold);
}
.nav-right{ display:flex; align-items:center; gap:22px; }
.lang-toggle{
  font-size:0.78rem;
  letter-spacing:0.05em;
  color: var(--text-dim);
  border:1px solid var(--border);
  padding:6px 12px;
  border-radius: 999px;
  cursor:pointer;
  user-select:none;
  transition: color .2s ease, border-color .2s ease;
}
.lang-toggle:hover{
  color: var(--gold-light);
  border-color: var(--gold);
}
.menu-btn{
  display:none;
  background:none; border:none; color:var(--text);
  font-size:1.4rem; cursor:pointer;
}

/* mobile nav */
@media (max-width: 860px){
  nav.main-nav{
    position:fixed; top:64px; left:0; right:0; bottom:0;
    background: var(--bg-alt);
    padding: 30px 24px;
    transform: translateY(-110%);
    transition: transform .3s ease;
  }
  nav.main-nav.open{ transform: translateY(0); }
  nav.main-nav ul{ flex-direction:column; gap:22px; }
  .menu-btn{ display:block; }
  .nav-right .lang-toggle{ display:none; }
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height: 92vh;
  display:flex;
  align-items:center;
  padding-top: 90px;
  background-size: cover;
  background-position:center;
  overflow:hidden;
}
.hero::after{
  content:'';
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(11,12,14,0.55) 0%, rgba(11,12,14,0.85) 75%, var(--bg) 100%);
}
.hero .container{ position:relative; z-index:2; }
.hero h1{ font-size: clamp(2.2rem, 5vw, 3.6rem); max-width: 760px; color:#fff; }
.hero p.lead{ max-width: 560px; font-size: 1.05rem; color: var(--text-dim); }
.hero .cta-row{ display:flex; align-items:center; gap:26px; margin-top: 30px; }
.scroll-hint{ font-size:0.75rem; letter-spacing:0.15em; color: var(--text-dim); text-transform:uppercase; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  position:relative;
  padding: 170px 0 70px;
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:'';
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(11,12,14,0.75), var(--bg));
}
.page-hero .container{ position:relative; z-index:2; }
.page-hero h1{ font-size: clamp(1.8rem, 4vw, 2.6rem); color:#fff; margin-bottom:12px; }

/* ---------- Sections ---------- */
section{ padding: 90px 0; }
section.alt{ background: var(--bg-alt); }
.section-head{ max-width: 640px; margin-bottom: 52px; }
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); color:#fff; }

/* ---------- Grid cards ---------- */
.grid{ display:grid; gap: 28px; }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px){ .grid-3{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px){ .grid-3, .grid-2{ grid-template-columns: 1fr; } }

.card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow:hidden;
  transition: transform .3s ease, border-color .3s ease;
}
.card:hover{ transform: translateY(-6px); border-color: var(--gold); }
.card > img{ width:100%; height: 220px; object-fit:cover; }
.card .card-body{ padding: 24px; }
.card .tag{ font-size:0.7rem; letter-spacing:0.15em; text-transform:uppercase; color: var(--gold); }
.card h3{ font-size: 1.15rem; margin: 10px 0 8px; color:#fff; }
.card p{ margin:0; font-size:0.92rem; }

.status-pill{
  display:inline-block;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight:700;
}
.status-pill.active{ background: rgba(201,162,75,0.15); color: var(--gold-light); border:1px solid var(--gold); }
.status-pill.soon{ background: rgba(255,255,255,0.06); color: var(--text-dim); border:1px solid var(--border); }

/* ---------- Stats ---------- */
.stats{ display:flex; gap: 60px; flex-wrap:wrap; margin-top: 34px; }
.stat b{
  display:block; font-family:'Playfair Display',serif;
  font-size: 2.4rem; color: var(--gold-light);
}
.stat span{ font-size:0.82rem; color: var(--text-dim); letter-spacing:0.05em; text-transform:uppercase; }

/* ---------- Timeline ---------- */
.timeline{ border-left: 1px solid var(--border); padding-left: 30px; display:flex; flex-direction:column; gap: 30px; }
.timeline .item b{ color: var(--gold-light); font-size:1.2rem; display:block; margin-bottom:6px; font-family:'Playfair Display',serif; }

/* ---------- Org chart ---------- */
.org{ text-align:center; }
.org-box{
  display:inline-block; background: var(--panel); border:1px solid var(--border);
  padding: 16px 26px; border-radius: var(--radius); margin: 8px;
}
.org-box.top{ border-color: var(--gold); }
.org-box b{ display:block; color:#fff; font-size:1rem; }
.org-box span{ font-size:0.75rem; color: var(--text-dim); letter-spacing:0.05em; }
.org-arrow{ color: var(--gold); font-size:1.4rem; margin: 6px 0; }

/* ---------- Form ---------- */
form.contact-form{ display:grid; gap: 18px; max-width: 640px; }
form.contact-form label{ font-size:0.82rem; color: var(--text-dim); display:block; margin-bottom:6px; }
form.contact-form input, form.contact-form select, form.contact-form textarea{
  width:100%; padding: 13px 14px; background: var(--panel); border:1px solid var(--border);
  border-radius: var(--radius); color: var(--text); font-family:inherit; font-size:0.95rem;
}
form.contact-form textarea{ min-height: 130px; resize:vertical; }
form.contact-form input:focus, form.contact-form select:focus, form.contact-form textarea:focus{
  outline:none; border-color: var(--gold);
}
.form-note{ font-size:0.8rem; color: var(--text-dim); margin-top:10px; }

/* ---------- Footer ---------- */
footer{ border-top: 1px solid var(--border); padding: 60px 0 30px; background: var(--bg-alt); }
.footer-top{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:40px; margin-bottom:40px; }
.footer-brand h3{ color:#fff; font-size:1.3rem; margin-bottom:8px; }
.footer-brand p{ max-width:320px; font-size:0.88rem; }
.footer-social{ display:flex; gap:14px; margin-top:16px; }
.footer-social a{
  width:36px; height:36px; border:1px solid var(--border); border-radius:50%;
  display:flex; align-items:center; justify-content:center; font-size:0.85rem; color: var(--text-dim);
  transition: all .2s;
}
.footer-social a:hover{ border-color: var(--gold); color: var(--gold-light); }
.footer-cols{ display:flex; gap:70px; flex-wrap:wrap; }
.footer-col h4{ font-size:0.78rem; letter-spacing:0.1em; text-transform:uppercase; color: var(--text); margin-bottom:16px; font-family:'Inter',sans-serif; font-weight:700; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-col a, .footer-col li{ font-size:0.88rem; color: var(--text-dim); }
.footer-col a:hover{ color: var(--gold-light); }
.footer-bottom{
  border-top:1px solid var(--border); padding-top: 22px; margin-top: 30px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:0.78rem; color: var(--text-dim);
}
.footer-bottom a{ margin-left: 18px; }

/* ---------- 404 / simple page ---------- */
.simple-page{ padding: 200px 0 140px; text-align:center; }
.simple-page h1{ font-size: 5rem; color: var(--gold); }

/* ---------- Legal pages ---------- */
.legal h2{ color:#fff; font-size:1.2rem; margin-top:36px; }
.legal p, .legal li{ color: var(--text-dim); font-size:0.94rem; }

/* ---------- Maintenance modal (matches source site) ---------- */
.maint-overlay{
  position:fixed; inset:0; z-index: 3000;
  background: rgba(6,6,7,0.92);
  display:flex; align-items:center; justify-content:center;
  padding: 24px;
}
.maint-box{
  background: var(--panel); border:1px solid var(--gold);
  border-radius: var(--radius); padding: 40px; max-width: 420px; text-align:center;
}
.maint-box h3{ color:#fff; margin-bottom:10px; }
.maint-box p{ font-size:0.9rem; }
.maint-box .btn{ margin-top: 18px; }