/* =============================================================================
   G6 마케팅 랜딩페이지 — abysskorea.com 컬러/톤 벤치마킹
   ============================================================================= */

:root{
  --bg: #0c0a08;
  --bg-soft: #141110;
  --card: #18140f;
  --card-hover: #1f1a14;
  --border: rgba(255,255,255,.10);
  --border-strong: rgba(255,255,255,.18);
  --text: #f4f1e8;
  --text-dim: #c7c2b5;
  --text-mute: #8f8a7b;
  --accent: #d4a84b;
  --gold-grad: linear-gradient(135deg, #f3dc9c 0%, #d4a84b 45%, #a47a2a 100%);
  --radius-sm: 4px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --maxw: 1180px;
  --pad: 24px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text-dim);
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
button{ font-family:inherit; }

.container{ max-width: var(--maxw); margin:0 auto; padding:0 var(--pad); }

.eyebrow{
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin: 0 0 16px;
}

.section-title{
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  line-height: 1.28;
  color: var(--text);
  letter-spacing: -.01em;
  margin: 0 0 20px;
}

.section-sub{
  max-width: 620px;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.7;
  margin: 0 0 48px;
}

/* ---------------------------------------------------------------- buttons */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 15px 26px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor:pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, opacity .18s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{
  background: var(--gold-grad);
  color: var(--bg);
}
.btn-primary:hover{ opacity:.9; }
.btn-outline{
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-outline:hover{ border-color: var(--text); }
.btn-sm{ padding: 10px 20px; font-size: 13.5px; }
.arrow{ transition: transform .18s ease; }
.btn:hover .arrow{ transform: translateX(3px); }

/* ---------------------------------------------------------------- header */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(12,10,8,.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height: 76px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand-mark{
  width:34px; height:34px; border-radius:9px;
  background: var(--gold-grad); color: var(--bg);
  display:flex; align-items:center; justify-content:center;
  font-weight:700; font-size:15px;
}
.brand-text{
  display:flex; flex-direction:column; line-height:1.15;
  font-weight:700; font-size:15px; color: var(--text);
  letter-spacing: .01em;
}
.brand-text em{
  font-style:normal; font-size:9.5px; font-weight:600;
  letter-spacing:.18em; color: var(--text-mute); margin-top:2px;
}
.nav-links{ display:flex; gap:34px; }
.nav-links a{
  font-size: 14px; color: var(--text-dim); font-weight:500;
  transition: color .15s ease;
}
.nav-links a:hover{ color: var(--text); }
.header-actions{ display:flex; align-items:center; gap:14px; }

.menu-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:38px; height:38px; background:transparent; border:1px solid var(--border-strong);
  border-radius:9px; cursor:pointer;
}
.menu-toggle span{ display:block; width:16px; height:1.5px; background:var(--text); margin:0 auto; }
.mobile-nav{
  display:flex; flex-direction:column; gap:2px;
  padding: 10px var(--pad) 26px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.mobile-nav[hidden]{ display:none; }
.mobile-nav a{
  padding: 14px 4px; font-size:15px; color: var(--text-dim); border-bottom:1px solid var(--border);
}
.mobile-nav .btn{ margin-top:14px; justify-content:center; }

/* ---------------------------------------------------------------- hero */
.hero{
  position:relative;
  min-height: 92vh;
  display:flex; align-items:center;
  overflow:hidden;
  padding: 80px 0 60px;
}
.hero-bg{ position:absolute; inset:0; z-index:0; opacity:.5; }
.hero-graph{ position:absolute; right:-6%; top:8%; width:64%; height:80%; }
.grid-lines line{ stroke: rgba(255,255,255,.06); stroke-width:1; }
.graph-line{ filter: drop-shadow(0 0 14px rgba(212,168,75,.32)); }
.graph-dot{ fill: var(--accent); filter: drop-shadow(0 0 10px rgba(212,168,75,.7)); }
.hero::after{
  content:"";
  position:absolute; inset:0;
  background: radial-gradient(120% 90% at 82% 15%, rgba(212,168,75,.07), transparent 55%),
              linear-gradient(180deg, rgba(12,10,8,0) 0%, rgba(12,10,8,.55) 78%, var(--bg) 100%);
  pointer-events:none;
}
.hero-inner{ position:relative; z-index:1; max-width: 660px; }
.hero-title{
  font-size: clamp(36px, 5.6vw, 64px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--text);
  margin: 0 0 22px;
}
.hero-title span{ color: var(--text); }
.hero-sub{
  font-size: 16.5px;
  color: var(--text-dim);
  max-width: 540px;
  margin: 0 0 34px;
  line-height:1.75;
}
.hero-cta{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:34px; }
.hero-tags{ display:flex; gap:10px; flex-wrap:wrap; }
.hero-tags li{
  font-size: 12.5px; color: var(--text-mute); font-weight:500;
  padding: 8px 14px; border:1px solid var(--border); border-radius:100px;
}

.hero-rail{
  position:absolute; right:44px; top:50%; transform:translateY(-50%);
  display:flex; flex-direction:column; align-items:center; gap:10px;
  z-index:1;
}
.rail-current, .rail-total{ font-size:11px; color:var(--text-mute); font-weight:600; }
.rail-current{ color:var(--text); }
.rail-track{ width:1px; height:120px; background:var(--border); position:relative; }
.rail-fill{ position:absolute; top:0; left:0; width:100%; height:14%; background:var(--gold-grad); }

/* ---------------------------------------------------------------- numbers */
.numbers{ padding: 120px 0; border-top:1px solid var(--border); }
.stat-grid{
  display:grid; grid-template-columns: repeat(4, 1fr); gap:1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow:hidden;
  margin-bottom: 64px;
}
.stat-card{
  background: var(--bg-soft);
  padding: 36px 26px;
  display:flex; flex-direction:column; gap:10px;
}
.stat-num{
  font-size: clamp(30px, 3.4vw, 42px);
  font-weight:700; letter-spacing:-.01em;
  background: linear-gradient(180deg, #f3dc9c 0%, #d4a84b 55%, #b98a35 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent; -webkit-text-fill-color:transparent;
}
.stat-label{ font-size:13.5px; color: var(--text-mute); line-height:1.55; }
.stat-label small{ color: var(--text-mute); opacity:.8; font-size:12px; }

.lead-card{
  display:flex; gap:32px; align-items:center;
  background: var(--card);
  border:1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 56px;
}
.lead-photo{
  flex: 0 0 96px; width:96px; height:96px; border-radius:50%;
  background: linear-gradient(155deg,#241f16,#0c0a08);
  border:1px solid var(--border-strong);
  display:flex; align-items:center; justify-content:center;
  font-size:34px; font-weight:700; color: var(--text);
}
.lead-body .eyebrow{ margin-bottom:10px; }
.lead-name{ font-size:22px; font-weight:700; color:var(--text); margin:0 0 12px; }
.lead-quote{ font-size:15.5px; color:var(--text-dim); line-height:1.7; margin:0 0 18px; max-width:640px; }
.lead-tags{ display:flex; gap:10px; flex-wrap:wrap; }
.lead-tags li{ font-size:12.5px; color:var(--text-mute); padding:7px 13px; border:1px solid var(--border); border-radius:100px; }

.brand-strip{ border-top:1px solid var(--border); padding-top:48px; }
.brand-strip-head{ text-align:center; margin-bottom:34px; }
.brand-strip-label{ font-size:12.5px; font-weight:600; color:var(--accent); letter-spacing:.18em; text-transform:uppercase; margin:0 0 10px; }
.brand-strip-sub{ font-size:15px; color:var(--text-dim); margin:0; }

.marquee{
  position:relative; overflow:hidden; margin-bottom:16px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track{
  display:flex; gap:var(--g,16px); width:max-content;
  animation: marquee-left 46s linear infinite;
}
.marquee[data-dir="right"] .marquee-track{ animation-name: marquee-right; animation-duration: 58s; }
.marquee:hover .marquee-track{ animation-play-state: paused; }
@keyframes marquee-left{ from{ transform:translateX(0); } to{ transform:translateX(calc(-50% - var(--g,16px) / 2)); } }
@keyframes marquee-right{ from{ transform:translateX(calc(-50% - var(--g,16px) / 2)); } to{ transform:translateX(0); } }

.logo-tile{
  flex:0 0 auto; min-width:210px; height:96px; padding:0 30px;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:6px;
  border:1px solid var(--border); border-radius:var(--radius-md);
  background: linear-gradient(160deg, rgba(212,168,75,.07), rgba(255,255,255,.015) 55%), var(--bg-soft);
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.logo-tile:hover{ border-color: rgba(212,168,75,.55); transform: translateY(-3px); box-shadow: 0 10px 30px -12px rgba(212,168,75,.35); }
.logo-name{ font-size:21px; font-weight:800; color:var(--text); letter-spacing:-.01em; white-space:nowrap; }
.logo-wide{ font-size:17px; letter-spacing:.14em; font-weight:700; }
.logo-serif{ font-family: Georgia, "Times New Roman", serif; font-weight:700; letter-spacing:.06em; }
.logo-sub{ font-size:11px; color:var(--text-mute); letter-spacing:.06em; white-space:nowrap; }

.marquee-pills .marquee-track{ --g:12px; }
.pill{
  flex:0 0 auto; padding:10px 20px; border:1px solid var(--border-strong); border-radius:100px;
  font-size:14px; font-weight:600; color:var(--text-dim); white-space:nowrap;
  display:flex; align-items:center; gap:10px;
}
.pill::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--accent); }

.brand-more{ text-align:center; margin:30px 0 0; font-size:14px; color:var(--text-dim); display:flex; align-items:center; justify-content:center; gap:10px; }
.brand-more-plus{
  width:22px; height:22px; border-radius:50%; background:var(--gold-grad); color:var(--bg);
  display:inline-flex; align-items:center; justify-content:center; font-weight:800; font-size:15px; line-height:1;
}

@media (prefers-reduced-motion: reduce){
  .marquee-track{ animation:none !important; flex-wrap:wrap; width:auto; justify-content:center; }
  .marquee{ -webkit-mask-image:none; mask-image:none; }
  .marquee-track [aria-hidden="true"]{ display:none; }
}

/* ---------------------------------------------------------------- why */
.why{ padding: 120px 0; border-top:1px solid var(--border); }
.compare-grid{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--border); border:1px solid var(--border); border-radius:var(--radius-md); overflow:hidden; margin-bottom:56px; }
.compare-col{ background: var(--bg-soft); padding:34px; }
.compare-label{ font-size:12.5px; color:var(--text-mute); text-transform:uppercase; letter-spacing:.1em; margin:0 0 10px; }
.compare-col h3{ font-size:19px; color:var(--text); margin:0 0 22px; font-weight:700; }
.compare-col ul{ display:flex; flex-direction:column; gap:14px; }
.compare-col li{ font-size:14.5px; color:var(--text-dim); padding-left:20px; position:relative; }
.compare-col li::before{ content:"—"; position:absolute; left:0; color:var(--text-mute); }
.compare-us{ background: linear-gradient(160deg, rgba(212,168,75,.08), transparent 60%), var(--bg-soft); }

.feature-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.feature-card{ border:1px solid var(--border); border-radius: var(--radius-md); padding:30px; background: var(--card); }
.feature-card h3{ font-size:17px; color:var(--text); margin:0 0 12px; font-weight:700; }
.feature-card p{ font-size:14.5px; color:var(--text-dim); line-height:1.65; margin:0; }

/* ---------------------------------------------------------------- services / products */
.services{ padding: 120px 0; border-top:1px solid var(--border); }
.product-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--border); border:1px solid var(--border); border-radius:var(--radius-md); overflow:hidden; }
.product-card{
  background: var(--bg-soft);
  padding: 30px 26px 34px;
  display:flex; flex-direction:column; gap:10px;
  transition: background .18s ease;
}
.product-card:hover{ background: var(--card-hover); }
.product-num{ font-size:12px; color:var(--text-mute); font-weight:700; }
.product-tag{ font-size:11px; letter-spacing:.14em; color:var(--text-mute); font-weight:700; }
.product-card h3{ font-size:16.5px; color:var(--text); margin:2px 0 2px; font-weight:700; }
.product-card p{ font-size:13.5px; color:var(--text-dim); line-height:1.6; margin:0; }

/* ---------------------------------------------------------------- process */
.process{ padding:120px 0; border-top:1px solid var(--border); }
.process-grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:20px; }
.process-step{ border-top:2px solid var(--border-strong); padding-top:22px; }
.step-num{ font-size:12px; font-weight:700; color:var(--text-mute); letter-spacing:.08em; }
.process-step h3{ font-size:17px; color:var(--text); margin:14px 0 10px; font-weight:700; }
.process-step p{ font-size:13.5px; color:var(--text-dim); line-height:1.6; margin:0; }

/* ---------------------------------------------------------------- faq */
.faq{ padding:120px 0; border-top:1px solid var(--border); }
.faq-list{ max-width: 760px; }
.faq-item{ border-bottom:1px solid var(--border); }
.faq-q{
  width:100%; text-align:left; background:transparent; border:none; color:var(--text);
  font-size:16px; font-weight:600; padding:24px 30px 24px 0; cursor:pointer;
  position:relative;
}
.faq-q::after{
  content:"+"; position:absolute; right:0; top:22px; font-size:20px; color:var(--text-mute);
  transition: transform .2s ease;
}
.faq-item.open .faq-q::after{ transform: rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition: max-height .25s ease; }
.faq-item.open .faq-a{ max-height:200px; }
.faq-a p{ margin:0 0 24px; color:var(--text-dim); font-size:14.5px; line-height:1.7; max-width:640px; }

/* ---------------------------------------------------------------- contact */
.contact{ padding:120px 0 140px; border-top:1px solid var(--border); }
.contact-inner{ display:grid; grid-template-columns: 1fr .92fr; gap:64px; align-items:start; }
.contact-note{ font-size:13px; color:var(--text-mute); margin:-8px 0 28px; }
.contact-benefits{ display:flex; flex-direction:column; gap:12px; }
.contact-benefits li{ font-size:14.5px; color:var(--text-dim); padding-left:22px; position:relative; }
.contact-benefits li::before{ content:"✓"; position:absolute; left:0; color:var(--text); }

.contact-form{
  background: var(--card); border:1px solid var(--border); border-radius: var(--radius-lg);
  padding: 40px; position:relative;
}
.contact-form h3{ font-size:19px; color:var(--text); margin:0 0 6px; font-weight:700; }
.form-sub{ font-size:13.5px; color:var(--text-mute); margin:0 0 26px; }
.contact-form label{ display:block; font-size:13px; color:var(--text-dim); margin: 16px 0 8px; font-weight:600; }
.contact-form label:first-of-type{ margin-top:0; }
.contact-form input, .contact-form textarea{
  width:100%; background: var(--bg-soft); border:1px solid var(--border-strong);
  border-radius:10px; padding:13px 14px; color:var(--text); font-size:14.5px; font-family:inherit;
}
.contact-form input:focus, .contact-form textarea:focus{ outline:none; border-color: var(--text-mute); }
.contact-form textarea{ min-height:88px; resize:vertical; }
.check-row{ display:flex; align-items:flex-start; gap:10px; font-weight:400 !important; font-size:12.5px !important; color:var(--text-mute) !important; }
.check-row input{ width:16px; height:16px; margin-top:2px; flex:0 0 auto; }
.form-submit{ width:100%; justify-content:center; margin-top:24px; }
.form-done{
  position:absolute; inset:0; border-radius: var(--radius-lg);
  background: var(--card); display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; padding:40px;
}
.form-done[hidden]{ display:none; }
.form-done h3{ font-size:20px; }
.form-done p{ font-size:14.5px; color:var(--text-dim); line-height:1.7; }

/* ---------------------------------------------------------------- footer */
.site-footer{ border-top:1px solid var(--border); padding:56px 0 40px; }
.footer-inner{ display:flex; flex-direction:column; gap:22px; }
.footer-brand{ display:flex; align-items:center; gap:10px; }
.footer-meta{ font-size:13px; color:var(--text-mute); line-height:1.7; max-width:720px; }
.footer-nav{ display:flex; gap:24px; flex-wrap:wrap; }
.footer-nav a{ font-size:13.5px; color:var(--text-dim); }
.footer-copy{ font-size:12.5px; color:var(--text-mute); margin:10px 0 0; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 980px){
  .nav-links{ display:none; }
  .menu-toggle{ display:flex; }
  .hero-rail{ display:none; }
  .stat-grid{ grid-template-columns:repeat(2,1fr); }
  .compare-grid{ grid-template-columns:1fr; }
  .feature-grid{ grid-template-columns:1fr; }
  .product-grid{ grid-template-columns:repeat(2,1fr); }
  .process-grid{ grid-template-columns:repeat(2,1fr); }
  .contact-inner{ grid-template-columns:1fr; }
  .lead-card{ flex-direction:column; align-items:flex-start; }
}
@media (max-width: 560px){
  .stat-grid{ grid-template-columns:1fr; }
  .product-grid{ grid-template-columns:1fr; }
  .process-grid{ grid-template-columns:1fr; }
  .hero{ min-height:auto; padding:110px 0 60px; }
  .hero-cta{ flex-direction:column; }
  .hero-cta .btn{ width:100%; justify-content:center; }
}