/* CHAIN ENTERTAINMENT — 블랙 · 실버 · 화이트 */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;500;700;800&family=Noto+Sans+KR:wght@300;400;500;700;900&display=swap');

:root {
  --black: #000;
  --ink: #0d0d0f;
  --panel: #141416;
  --line: #2a2a2f;
  --gray: #8b8b94;
  --silver: #c9c9ce;
  --white: #fff;
  --paper: #f5f5f7;
  --silver-grad: linear-gradient(135deg, #f4f4f6 0%, #c9c9ce 35%, #eeeef1 55%, #a9a9b0 100%);
  --max: 1160px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--black); color: var(--white); font-family: 'Noto Sans KR', sans-serif; line-height: 1.7; -webkit-font-smoothing: antialiased; word-break: keep-all; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; }
.en { font-family: 'Montserrat', sans-serif; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.silver { background: var(--silver-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- 로고 (images/logo.png 를 SVG viewBox로 잘라 사용) ---------- */
.logo-full { width: 100%; height: auto; aspect-ratio: 1070 / 570; }
.logo-mark { height: 100%; width: auto; aspect-ratio: 1070 / 400; }
.logo-full, .logo-mark { mix-blend-mode: lighten; } /* 로고 PNG의 검정 배경이 다른 배경 위에서 사각형으로 보이지 않게 */

/* ---------- 헤더 ---------- */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 50; background: rgba(0, 0, 0, .78); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; height: 30px; }
.brand span { font-family: 'Montserrat', sans-serif; font-size: 11px; letter-spacing: .32em; color: var(--silver); font-weight: 500; }
.nav { display: flex; gap: 34px; }
.nav a { font-family: 'Montserrat', sans-serif; font-size: 12px; letter-spacing: .2em; color: #b9b9c0; transition: color .25s; padding: 6px 0; border-bottom: 1px solid transparent; }
.nav a:hover, .nav a.on { color: #fff; border-bottom-color: var(--silver); }

/* ---------- 히어로 ---------- */
.hero { position: relative; min-height: min(100vh, 880px); display: flex; align-items: center; overflow: hidden; padding: 120px 0 80px; }
.hero::before { content: ''; z-index: -1; position: absolute; top: 0; right: 0; width: 44%; height: 100%; background: var(--silver-grad); clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%); opacity: .94; }
.hero::after { content: ''; z-index: -1; position: absolute; top: 0; right: 40%; width: 22px; height: 100%; background: #26262a; transform: skewX(-12deg); }
.hero .wrap { position: relative; width: 100%; }
.hero .logo-full { width: min(520px, 78vw); margin-bottom: 34px; margin-left: -6px; }
.hero h1 { font-size: clamp(26px, 4.2vw, 46px); font-weight: 900; line-height: 1.35; letter-spacing: -.01em; }
.hero p.sub { margin-top: 18px; font-size: 16px; color: #c8c8ce; max-width: 520px; }
.eyebrow { font-family: 'Montserrat', sans-serif; font-size: 11px; letter-spacing: .4em; color: var(--silver); margin-bottom: 18px; font-weight: 500; }
.cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.btn { display: inline-block; padding: 15px 30px; font-family: 'Montserrat', 'Noto Sans KR', sans-serif; font-size: 13px; letter-spacing: .12em; font-weight: 700; border: 1px solid var(--silver); transition: all .25s; }
.btn.fill { background: var(--white); color: #000; border-color: var(--white); }
.btn.fill:hover { background: var(--silver); }
.btn.line:hover { background: rgba(255, 255, 255, .1); }

/* ---------- 섹션 공통 ---------- */
section { padding: 110px 0; }
.sec-tag { font-family: 'Montserrat', sans-serif; font-size: 11px; letter-spacing: .4em; color: var(--gray); font-weight: 700; }
.sec-title { font-size: clamp(24px, 3.4vw, 38px); font-weight: 900; line-height: 1.35; margin: 12px 0 14px; }
.sec-desc { color: #b2b2ba; max-width: 640px; }
.bar { width: 56px; height: 4px; background: var(--silver-grad); margin: 26px 0 44px; }
.light { background: var(--paper); color: var(--ink); }
.light .sec-tag { color: #6e6e76; }
.light .sec-desc { color: #4a4a52; }

/* 카드 */
.grid { display: grid; gap: 22px; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.g2 { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 38px 30px; min-height: 250px; transition: transform .3s, border-color .3s; }
.card:hover { transform: translateY(-4px); border-color: #55555c; }
.card .no { font-family: 'Montserrat', sans-serif; font-size: 34px; font-weight: 800; }
.card h3 { font-size: 19px; font-weight: 700; margin: 14px 0 12px; }
.card p { font-size: 14px; color: #b2b2ba; line-height: 1.85; }
.light .card { background: #fff; border-color: #e1e1e6; }
.light .card:hover { border-color: #9a9aa2; }
.light .card p { color: #55555d; }

/* 서비스 열 */
.svc { border-top: 1px solid #3a3a40; padding-top: 26px; }
.svc .en { font-size: 12px; letter-spacing: .25em; color: var(--silver); }
.svc h3 { font-size: 20px; margin: 10px 0 10px; }
.svc p { font-size: 14px; color: #b2b2ba; }

/* 진행 단계 */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.step { border-top: 3px solid var(--silver); padding-top: 20px; }
.step .en { font-size: 26px; font-weight: 800; }
.step h4 { font-size: 15px; margin: 8px 0 6px; }
.step p { font-size: 12.5px; color: #9a9aa2; line-height: 1.7; }

/* 체크 리스트 */
.checks li { padding: 16px 0 16px 34px; position: relative; border-bottom: 1px solid #e1e1e6; font-size: 15.5px; }
.dark-list li { border-bottom-color: var(--line); }
.checks li::before { content: ''; position: absolute; left: 0; top: 24px; width: 12px; height: 12px; border-radius: 50%; background: var(--silver-grad); border: 1px solid #8b8b94; }

/* 자리 표시 카드 */
.soon { border: 1px dashed #4a4a52; border-radius: 14px; padding: 64px 32px; text-align: center; color: #9a9aa2; }
.soon b { display: block; font-family: 'Montserrat', sans-serif; letter-spacing: .3em; font-size: 13px; color: var(--silver); margin-bottom: 10px; }
.light .soon { border-color: #b8b8c0; color: #6e6e76; }
.light .soon b { color: #3a3a40; }

/* CTA 띠 */
.band { background: var(--silver-grad); color: #000; padding: 80px 0; }
.band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.band h2 { font-size: clamp(22px, 3vw, 32px); font-weight: 900; line-height: 1.4; }
.band .btn { border-color: #000; color: #000; }
.band .btn.fill { background: #000; color: #fff; }
.band .btn.fill:hover { background: #26262a; }

/* 페이지 헤드 */
.page-head { padding: 170px 0 70px; border-bottom: 1px solid var(--line); background: radial-gradient(ellipse at 85% 0%, rgba(201, 201, 206, .13), transparent 60%); }
.page-head h1 { font-size: clamp(30px, 5vw, 54px); font-weight: 900; line-height: 1.25; }

/* 정보 표 */
.info { width: 100%; border-collapse: collapse; margin-top: 10px; }
.info th, .info td { text-align: left; padding: 18px 8px; border-bottom: 1px solid var(--line); font-size: 15px; vertical-align: top; }
.info th { width: 160px; color: var(--silver); font-family: 'Montserrat', sans-serif; font-weight: 500; letter-spacing: .15em; font-size: 12px; padding-top: 22px; }
.info td.mute { color: #9a9aa2; }

/* 푸터 */
.site-footer { border-top: 1px solid var(--line); padding: 56px 0 40px; background: #000; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; align-items: flex-start; }
.foot-brand { display: flex; align-items: center; gap: 14px; height: 38px; }
.foot-brand span { font-family: 'Montserrat', sans-serif; letter-spacing: .3em; font-size: 12px; color: var(--silver); }
.foot-info { font-size: 12.5px; color: #8b8b94; line-height: 2; }
.foot-nav { display: flex; gap: 24px; font-family: 'Montserrat', sans-serif; font-size: 11.5px; letter-spacing: .18em; color: #8b8b94; }
.foot-nav a:hover { color: #fff; }
.copy { width: 100%; font-size: 11.5px; color: #5d5d65; margin-top: 10px; font-family: 'Montserrat', sans-serif; letter-spacing: .08em; }

/* ---------- 반응형 ---------- */
@media (max-width: 980px) {
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 28px 16px; }
  .hero::before { width: 60%; opacity: .55; }
  .hero::after { display: none; }
}
@media (max-width: 720px) {
  section { padding: 78px 0; }
  .wrap { padding: 0 20px; }
  .site-header .wrap { height: 60px; }
  .brand span { display: none; }
  .nav { gap: 18px; }
  .nav a { font-size: 10.5px; letter-spacing: .12em; }
  .g3, .g2, .g4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .card { min-height: 0; padding: 30px 24px; }
  .hero { padding-top: 100px; }
  .hero::before { opacity: .22; width: 100%; clip-path: none; }
  .info th { width: 96px; }
  .band .wrap { flex-direction: column; align-items: flex-start; }
}

/* 밝은 배경 구간 가독성 보정 */
.light .bar { background: linear-gradient(135deg, #3a3a40, #9a9aa2); }
.light .step { border-top-color: #1a1a1d; }
.light .step .en { background: linear-gradient(135deg, #1a1a1d, #6e6e76); -webkit-background-clip: text; background-clip: text; color: transparent; }
.light .step h4 { color: #111; }
.light .step p { color: #55555d; }
.light .svc p, .light .card p { color: #55555d; }

/* 모바일 상단 메뉴가 넘치지 않도록 */
@media (max-width: 720px) {
  .brand { height: 22px; }
  .nav { gap: 13px; }
  .nav a { font-size: 10px; letter-spacing: .08em; }
}
@media (max-width: 400px) { .nav a:nth-child(3) { display: none; } }