/* =========================================================
   강남보스턴 — Premium Host Bar
   Dark luxury theme
   ========================================================= */

:root{
  --bg:        #0a0a0c;
  --bg-soft:   #121216;
  --bg-card:   #16161b;
  --line:      rgba(255,255,255,.08);
  --line-strong: rgba(255,255,255,.16);
  --text:      #ece9e3;
  --text-mut:  #9a958c;
  --text-dim:  #6c6860;
  --gold:      #c8a45c;
  --gold-soft: #d8bd86;
  --gold-deep: #a8853f;
  --serif: 'Noto Serif KR', serif;
  --sans:  'Noto Sans KR', sans-serif;
  --maxw: 1180px;
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-weight:300;
  line-height:1.7;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }

.container{ width:100%; max-width:var(--maxw); margin:0 auto; padding:0 28px; }

/* ---------- Section base ---------- */
.section{ padding:130px 0; position:relative; }
.section-label{
  display:inline-block;
  font-size:12px; letter-spacing:.42em; font-weight:500;
  color:var(--gold);
  text-transform:uppercase;
  margin-bottom:22px;
  padding-left:2px;
}
.section-label.light{ color:var(--gold-soft); }
.section-title{
  font-family:var(--serif);
  font-weight:600;
  font-size:clamp(28px, 4vw, 44px);
  line-height:1.32;
  letter-spacing:-.01em;
  color:#fff;
}
.section-head{ margin-bottom:62px; }
.section-head.center{ text-align:center; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  font-family:var(--sans); font-size:15px; font-weight:500;
  letter-spacing:.04em;
  padding:16px 38px;
  border:1px solid transparent;
  border-radius:2px;
  transition:.32s cubic-bezier(.2,.7,.3,1);
  cursor:pointer;
}
.btn-primary{
  background:linear-gradient(135deg, var(--gold-soft), var(--gold-deep));
  color:#1a1407;
  font-weight:700;
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 14px 34px rgba(200,164,92,.28); }
.btn-ghost{
  border-color:var(--line-strong);
  color:var(--text);
  background:transparent;
}
.btn-ghost:hover{ border-color:var(--gold); color:var(--gold-soft); }

/* =========================================================
   HEADER
   ========================================================= */
.site-header{
  position:fixed; top:0; left:0; width:100%; z-index:100;
  transition:.4s ease;
  background:transparent;
}
.site-header.scrolled{
  background:rgba(10,10,12,.86);
  backdrop-filter:saturate(140%) blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:88px;
  transition:height .4s ease;
}
.site-header.scrolled .header-inner{ height:70px; }
.brand{ display:flex; flex-direction:column; line-height:1; }
.brand-mark{
  font-family:var(--serif); font-weight:700; font-size:23px;
  letter-spacing:.22em; color:#fff;
}
.brand-kr{
  font-size:11px; letter-spacing:.36em; color:var(--gold-soft);
  margin-top:5px; padding-left:2px;
}
.nav{ display:flex; gap:38px; }
.nav a{
  font-size:15px; font-weight:400; color:var(--text-mut);
  position:relative; transition:color .25s;
}
.nav a::after{
  content:''; position:absolute; left:0; bottom:-7px; width:0; height:1px;
  background:var(--gold); transition:width .3s ease;
}
.nav a:hover{ color:#fff; }
.nav a:hover::after{ width:100%; }
.header-call{ text-align:right; line-height:1.25; }
.header-call-label{ display:block; font-size:11px; letter-spacing:.28em; color:var(--gold-soft); }
.header-call-num{ display:block; font-family:var(--serif); font-size:18px; font-weight:600; color:#fff; }
.nav-toggle{
  display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px;
}
.nav-toggle span{ width:24px; height:2px; background:#fff; transition:.3s; }

/* =========================================================
   HERO
   ========================================================= */
.hero{
  /* 이미지 비율(4:3)에 맞춘 높이: 폭의 70%, 단 620~820px 범위로 제한해 글 잘림 방지 */
  min-height:clamp(620px, 70vw, 820px);
  display:flex; align-items:center;
  background:
    radial-gradient(120% 80% at 75% 10%, rgba(200,164,92,.10), transparent 55%),
    linear-gradient(to bottom, #0b0b0e, #0a0a0c 60%, #070708);
  background-size:cover; background-position:center 42%;
  position:relative;
  padding:110px 0 70px;
}
.hero::after{
  content:''; position:absolute; inset:0;
  background:radial-gradient(100% 60% at 50% 100%, rgba(0,0,0,.55), transparent 60%);
  pointer-events:none;
}
.hero-inner{ position:relative; z-index:2; }
.hero-eyebrow{
  font-size:12px; letter-spacing:.5em; color:var(--gold);
  margin-bottom:30px; font-weight:500;
}
.hero-title{
  font-family:var(--serif); font-weight:600;
  font-size:clamp(36px, 6.2vw, 76px);
  line-height:1.24; letter-spacing:-.015em; color:#fff;
  margin-bottom:30px;
}
.hero-title em{ font-style:normal; color:var(--gold-soft); }
.hero-sub{
  font-size:clamp(15px,1.7vw,19px); color:var(--text-mut); font-weight:300;
  line-height:1.85; max-width:560px; margin-bottom:46px;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:72px; }
.hero-meta{
  display:flex; gap:54px; flex-wrap:wrap;
  padding-top:34px; border-top:1px solid var(--line);
  max-width:620px;
}
.hero-meta div{ font-family:var(--serif); font-size:20px; font-weight:600; color:#fff; }
.hero-meta span{ display:block; font-family:var(--sans); font-size:12px; font-weight:400; letter-spacing:.16em; color:var(--gold-soft); margin-bottom:8px; }
.scroll-cue{
  position:absolute; left:50%; bottom:34px; transform:translateX(-50%);
  font-size:10px; letter-spacing:.4em; color:var(--text-dim); z-index:2;
  writing-mode:vertical-rl;
}
.scroll-cue::after{ content:''; display:block; width:1px; height:42px; background:linear-gradient(var(--gold), transparent); margin:12px auto 0; }

/* =========================================================
   ABOUT
   ========================================================= */
.about{ background:var(--bg); }
.about-grid{ display:grid; grid-template-columns:1.1fr 1fr; gap:60px; align-items:start; }
.about-lead{ font-family:var(--serif); font-size:clamp(19px,2.2vw,25px); line-height:1.7; color:#e9e6df; font-weight:400; }
.about-lead strong{ color:var(--gold-soft); font-weight:600; }
.about-body{ color:var(--text-mut); font-size:16px; line-height:1.95; }

/* =========================================================
   FEATURES
   ========================================================= */
.features{ background:var(--bg-soft); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.feature-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.feature-card{
  background:var(--bg-card);
  border:1px solid var(--line);
  padding:42px 30px 38px;
  border-radius:3px;
  transition:.4s cubic-bezier(.2,.7,.3,1);
  position:relative; overflow:hidden;
}
.feature-card::before{
  content:''; position:absolute; top:0; left:0; width:100%; height:2px;
  background:linear-gradient(90deg, var(--gold), transparent);
  transform:scaleX(0); transform-origin:left; transition:transform .45s ease;
}
.feature-card:hover{ transform:translateY(-8px); border-color:var(--line-strong); background:#1a1a20; }
.feature-card:hover::before{ transform:scaleX(1); }
.feature-no{ font-family:var(--serif); font-size:15px; color:var(--gold); letter-spacing:.1em; }
.feature-card h3{ font-family:var(--serif); font-size:22px; font-weight:600; color:#fff; margin:18px 0 16px; }
.feature-card p{ font-size:14.5px; color:var(--text-mut); line-height:1.85; }

/* =========================================================
   SYSTEM
   ========================================================= */
.system{ background:var(--bg); }
.system-grid{ display:grid; grid-template-columns:1fr 1fr; gap:70px; }
.info-list{ margin-top:14px; }
.info-list li{
  display:flex; justify-content:space-between; gap:24px; align-items:baseline;
  padding:20px 0; border-bottom:1px solid var(--line);
}
.info-list span{ font-size:13px; letter-spacing:.14em; color:var(--gold-soft); white-space:nowrap; }
.info-list strong{ font-weight:400; color:var(--text); text-align:right; font-size:15.5px; }
.system-note{ margin-top:24px; font-size:14px; color:var(--text-dim); }

.system-table{
  background:linear-gradient(160deg, #15130e, #0e0e11);
  border:1px solid var(--line-strong);
  padding:48px 44px; border-radius:4px;
}
.system-table h3{ font-family:var(--serif); font-size:26px; font-weight:600; color:#fff; margin:6px 0 10px; }
.table-desc{ font-size:14.5px; color:var(--text-mut); margin-bottom:26px; }
.table-list li{
  display:flex; gap:18px; align-items:baseline;
  padding:15px 0; border-bottom:1px dashed var(--line);
  font-size:15.5px; color:var(--text);
}
.table-list span{
  flex:0 0 96px; font-size:13px; letter-spacing:.08em;
  color:var(--gold); font-weight:500;
}
.table-foot{ margin-top:24px; font-size:13px; color:var(--text-dim); line-height:1.7; }

/* =========================================================
   BENEFIT
   ========================================================= */
.benefit{ background:var(--bg-soft); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.benefit-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.benefit-item{
  text-align:center; padding:46px 28px;
  border:1px solid var(--line); border-radius:3px;
  transition:.35s ease; background:var(--bg-card);
}
.benefit-item:hover{ border-color:var(--gold-deep); }
.benefit-item h3{ font-family:var(--serif); font-size:21px; font-weight:600; color:var(--gold-soft); margin-bottom:16px; }
.benefit-item p{ font-size:14.5px; color:var(--text-mut); line-height:1.85; }

/* =========================================================
   GALLERY
   ========================================================= */
.gallery{ background:var(--bg); }
.gallery-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.gallery-item{
  position:relative; overflow:hidden; border-radius:3px;
  aspect-ratio:4/3; background:var(--bg-card); border:1px solid var(--line);
}
.gallery-item img{ width:100%; height:100%; object-fit:cover; transition:transform .6s cubic-bezier(.2,.7,.3,1); }
.gallery-item:hover img{ transform:scale(1.06); }
.gallery-item.placeholder{ display:flex; align-items:center; justify-content:center; }
.gallery-item.placeholder span{ font-family:var(--serif); letter-spacing:.3em; color:var(--text-dim); font-size:15px; }
.gallery-empty{ text-align:center; margin-top:26px; font-size:13px; color:var(--text-dim); }

/* =========================================================
   LOCATION
   ========================================================= */
.location{ background:var(--bg-soft); border-top:1px solid var(--line); }
.location-grid{ display:grid; grid-template-columns:1fr 1.05fr; gap:60px; align-items:center; }
.location-lead{ color:var(--text-mut); font-size:16px; line-height:1.9; margin:8px 0 32px; }
.location-list{ margin-bottom:36px; }
.location-list div{ display:flex; gap:26px; padding:16px 0; border-bottom:1px solid var(--line); }
.location-list dt{ flex:0 0 56px; font-size:13px; letter-spacing:.14em; color:var(--gold-soft); }
.location-list dd{ font-size:16px; color:var(--text); }
.location-list a:hover{ color:var(--gold-soft); }
.location-map{ position:relative; height:420px; border:1px solid var(--line-strong); border-radius:4px; overflow:hidden; }
.location-map iframe{ width:100%; height:100%; border:0; display:block; }
.map-open{
  position:absolute; left:14px; bottom:14px; z-index:2;
  background:rgba(10,10,12,.86); backdrop-filter:blur(6px);
  color:var(--gold-soft); font-size:13px; letter-spacing:.02em;
  padding:10px 18px; border:1px solid var(--line-strong); border-radius:3px;
  transition:.25s ease;
}
.map-open:hover{ border-color:var(--gold); color:#fff; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{ background:#070708; border-top:1px solid var(--line); padding:64px 0 40px; }
.footer-inner{ text-align:center; }
.footer-brand .brand-mark{ font-size:24px; }
.footer-brand p{ font-size:13px; letter-spacing:.2em; color:var(--gold-soft); margin-top:12px; }
.footer-info{ margin:28px 0; color:var(--text-mut); font-size:14px; line-height:1.9; }
.footer-info a:hover{ color:var(--gold-soft); }
.footer-biz{
  max-width:760px; margin:0 auto 26px;
  padding-top:24px; border-top:1px solid var(--line);
  display:flex; flex-wrap:wrap; justify-content:center; gap:8px 22px;
  font-size:12.5px; color:var(--text-dim); line-height:1.7;
}
.footer-biz span{ position:relative; }
.footer-biz span:not(:last-child)::after{
  content:''; position:absolute; right:-12px; top:50%; transform:translateY(-50%);
  width:1px; height:11px; background:var(--line-strong);
}
.footer-biz .footer-biz-addr{ flex-basis:100%; text-align:center; }
.footer-biz .footer-biz-addr::after{ display:none; }
.footer-copy{ font-size:12px; color:var(--text-dim); letter-spacing:.05em; }

/* ---------- Floating call (mobile) ---------- */
.floating-call{
  position:fixed; right:20px; bottom:22px; z-index:90;
  display:none; flex-direction:column; align-items:center; line-height:1.2;
  background:linear-gradient(135deg, var(--gold-soft), var(--gold-deep));
  color:#1a1407; padding:13px 22px; border-radius:40px;
  box-shadow:0 10px 30px rgba(0,0,0,.5);
}
.floating-call span{ font-size:10px; letter-spacing:.18em; }
.floating-call strong{ font-size:15px; font-weight:800; }

/* ---------- reveal animation ---------- */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .9s ease, transform .9s cubic-bezier(.2,.7,.3,1); }
.reveal.in{ opacity:1; transform:none; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1024px){
  .feature-grid{ grid-template-columns:repeat(2,1fr); }
  .about-grid, .system-grid, .location-grid{ grid-template-columns:1fr; gap:42px; }
  .hero-meta{ gap:38px; }
}
@media (max-width:768px){
  .section{ padding:88px 0; }
  .header-call{ display:none; }
  .nav-toggle{ display:flex; }
  .nav{
    position:fixed; top:0; right:0; height:100vh; width:78%; max-width:320px;
    background:rgba(10,10,12,.97); backdrop-filter:blur(16px);
    flex-direction:column; justify-content:center; gap:30px; padding:0 40px;
    transform:translateX(100%); transition:transform .4s cubic-bezier(.2,.7,.3,1);
    border-left:1px solid var(--line);
  }
  .nav.open{ transform:translateX(0); }
  .nav a{ font-size:19px; }
  .nav-toggle.active span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .nav-toggle.active span:nth-child(2){ opacity:0; }
  .nav-toggle.active span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }
  .gallery-grid{ grid-template-columns:repeat(2,1fr); }
  .benefit-grid{ grid-template-columns:1fr; }
  .floating-call{ display:flex; }
  .system-table{ padding:36px 26px; }
  .hero-meta div{ font-size:17px; }
}
@media (max-width:520px){
  .container{ padding:0 20px; }
  .feature-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:1fr; }
  .hero-actions .btn{ flex:1; padding:15px 20px; }
  .hero-meta{ gap:22px; }
  .hero-meta div{ flex:1 0 40%; }
}