@import url('./assets/fonts/pretendard/pretendardvariable-dynamic-subset.css');
@import url('./assets/fonts/montserrat/montserrat.css');

/* ── 토큰 ─────────────────────────────────────────────────────────────
   X-MEDIA 브랜드 가이드 기준.
   색  : X Navy #0D233B(신뢰) · X Blue #178BFF(기술) · Sky Blue #5AA9FF(연결)
   서체: Primary Montserrat(라틴) / Secondary Pretendard(국문)
   모서리: 버튼은 pill(980px) · 타일 22px · 칩 12px. 이 셋 외에는 쓰지 않는다. */
:root {
  --x-navy:#0d233b;
  --x-blue:#178bff;
  --sky:#5aa9ff;
  --blue-600:#0070e0;   /* 흰 글자 버튼용 파생색. X Blue 는 흰 바탕 대비가 모자란다 */
  --blue-700:#0059b2;

  --bg:#ffffff;
  --bg-soft:#f5f6f8;
  --text:var(--x-navy);
  --muted:#56687d;
  --line:rgba(13,35,59,.12);
  --tile:#f5f6f8;
  --link:var(--blue-700);

  --r-pill:980px; --r-tile:22px; --r-chip:12px;
  --wrap:1080px; --wrap-wide:1320px;
  --kr:'Pretendard Variable',Pretendard,-apple-system,BlinkMacSystemFont,system-ui,'Apple SD Gothic Neo',sans-serif;
  --latin:'Montserrat',var(--kr);
  --pad-y:clamp(84px,9.5vw,148px);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:#06111d;
    --bg-soft:#0c1a29;
    --text:#f2f6fa;
    --muted:#9fb3c6;
    --line:rgba(255,255,255,.13);
    --tile:#0e1f31;
    --link:var(--sky);
  }
}

* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:72px; -webkit-text-size-adjust:100%; }
body {
  margin:0; background:var(--bg); color:var(--text); font-family:var(--kr);
  font-size:17px; line-height:1.6; word-break:keep-all; -webkit-font-smoothing:antialiased;
}
img { display:block; max-width:100%; }
p { margin:0; }
h1,h2,h3 { margin:0; color:var(--text); font-weight:800; letter-spacing:-.035em; }
a { color:var(--link); text-decoration:none; }
:focus-visible { outline:2px solid var(--x-blue); outline-offset:4px; border-radius:var(--r-chip); }

.wrap { width:100%; max-width:var(--wrap); margin:0 auto; padding:0 22px; }
.wrap-wide { max-width:var(--wrap-wide); }
section { padding:var(--pad-y) 0; }
.soft { background:var(--bg-soft); }

/* 라이트 페이지 위에 의도적으로 얹는 다크 블록. 히어로와 플랫폼 두 곳뿐이다. */
.dark-block {
  position:relative; overflow:hidden; color:#fff;
  background:radial-gradient(60% 80% at 72% 18%, rgba(90,169,255,.30), transparent 60%),
             linear-gradient(160deg,#0d233b 0%, #0a1c30 55%, #123256 100%);
}
.dark-block h1, .dark-block h2, .dark-block h3 { color:#fff; }
.dark-block p { color:#c6d6e6; }

.display { font-size:clamp(2.35rem,1.35rem + 4.4vw,4.4rem); line-height:1.08; }
.h-sec   { font-size:clamp(1.95rem,1.25rem + 3vw,3.3rem); line-height:1.14; }
.lead { margin-top:20px; color:var(--muted); font-size:clamp(1.05rem,1rem + .45vw,1.35rem); line-height:1.55; max-width:52ch; }
.center { text-align:center; }
.center .lead { margin-left:auto; margin-right:auto; }

/* ── 버튼 · 링크 ──────────────────────────────────────────────────── */
.btn {
  display:inline-flex; align-items:center; justify-content:center; white-space:nowrap;
  padding:13px 26px; border-radius:var(--r-pill); font-size:1rem; font-weight:700;
  background:var(--blue-600); color:#fff; border:1px solid transparent;
  transition:background-color .2s ease, transform .2s cubic-bezier(.16,1,.3,1);
}
.btn:hover { background:var(--blue-700); }
.btn:active { transform:scale(.98); }
.btn-light { background:#fff; color:var(--x-navy); }
.btn-light:hover { background:#e9eef4; }
.arrow { font-size:1.02rem; font-weight:700; color:var(--link); }
.arrow::after { content:' \203A'; }
.arrow:hover { text-decoration:underline; }
.dark-block .arrow { color:var(--sky); }

/* ── 헤더 ─────────────────────────────────────────────────────────── */
.site-head {
  position:sticky; top:0; z-index:60; height:56px; display:flex; align-items:center;
  background:color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter:saturate(180%) blur(18px); -webkit-backdrop-filter:saturate(180%) blur(18px);
  border-bottom:1px solid var(--line);
}
.site-head .wrap { max-width:var(--wrap-wide); display:flex; align-items:center; gap:24px; }
.site-head .logo img { height:21px; width:auto; }
.site-head .logo .on-dark { display:none; }
.nav-links { display:none; margin:0 auto; gap:30px; font-size:.88rem; font-weight:600; }
.nav-links a { color:var(--muted); }
.nav-links a:hover { color:var(--text); }
@media (min-width:880px){ .nav-links { display:flex; } }
.site-head .btn { margin-left:auto; padding:8px 18px; font-size:.88rem; }
@media (min-width:880px){ .site-head .btn { margin-left:0; } }
@media (prefers-color-scheme: dark){
  .site-head .logo .on-light { display:none; }
  .site-head .logo .on-dark { display:block; }
}

/* ── 히어로 ───────────────────────────────────────────────────────── */
.hero { position:relative; min-height:min(86dvh,820px); display:flex; align-items:center; padding:84px 0 76px; }
.hero-video { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0; }
/* 글자가 영상 위에서도 읽히도록 왼쪽을 짙게 덮는다. 오른쪽은 파형이 보이게 열어 둔다. */
.hero::after {
  content:''; position:absolute; inset:0; z-index:1; pointer-events:none;
  background:linear-gradient(95deg, rgba(6,17,29,.94) 0%, rgba(6,17,29,.86) 38%, rgba(6,17,29,.48) 72%, rgba(6,17,29,.30) 100%);
}
@media (max-width:879px){
  .hero::after { background:linear-gradient(180deg, rgba(6,17,29,.82) 0%, rgba(6,17,29,.88) 60%, rgba(6,17,29,.94) 100%); }
}
@media (min-width:880px){ .hero { min-height:min(92dvh,860px); padding:120px 0 108px; } }
.hero .wrap { position:relative; z-index:2; }
.hero-lockup img { height:clamp(34px,5.4vw,52px); width:auto; }
.hero-lockup p {
  margin-top:14px; font-family:var(--latin); font-size:clamp(.64rem,.55rem + .3vw,.78rem);
  font-weight:600; letter-spacing:.22em; color:var(--sky); text-transform:uppercase;
}
.hero h1 { margin-top:40px; }
.hero .lead { color:#c6d6e6; }
.hero-cta { display:flex; flex-wrap:wrap; align-items:center; gap:14px 26px; margin-top:38px; }

/* ── 매체 타일 ────────────────────────────────────────────────────── */
.tiles { display:grid; gap:18px; margin-top:56px; }
@media (min-width:880px){ .tiles { grid-template-columns:repeat(2,1fr); } .tile-lead { grid-column:1 / -1; } }
/* 사진 위에 글자가 앉는 카드. 밝은 페이지 위에 어두운 카드가 놓이는 구조다. */
.tile {
  position:relative; overflow:hidden; isolation:isolate;
  background:var(--x-navy); border-radius:var(--r-tile); padding:38px 34px;
  display:flex; flex-direction:column; justify-content:flex-end; min-height:300px; color:#fff;
  transition:transform .3s cubic-bezier(.16,1,.3,1);
}
.tile::before {
  content:''; position:absolute; inset:0; z-index:-2;
  background-image:var(--img); background-size:cover; background-position:center;
  transform:scale(1.03); transition:transform .7s cubic-bezier(.16,1,.3,1);
}
/* 타일 영상. 실패하거나 아직 안 받았으면 ::before 의 사진이 그대로 보인다. */
.tile-media { position:absolute; inset:0; z-index:-2; width:100%; height:100%; object-fit:cover; }
.tile::after {
  content:''; position:absolute; inset:0; z-index:-1;
  background:linear-gradient(180deg, rgba(8,20,34,.18) 0%, rgba(8,20,34,.68) 52%, rgba(8,20,34,.93) 100%);
}
.tile:hover { transform:translateY(-4px); }
.tile:hover::before { transform:scale(1.08); }
.tile-lead { min-height:400px; }
.tile .field { font-family:var(--latin); font-size:.76rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--sky); }
.tile h3 { margin-top:12px; font-size:clamp(1.5rem,1.1rem + 1.4vw,2.2rem); color:#fff; }
.tile p { margin-top:14px; color:#c6d6e6; font-size:1.02rem; max-width:44ch; }
.tile-lead h3 { font-size:clamp(1.9rem,1.2rem + 2.4vw,2.9rem); }

/* ── 사업 영역 ────────────────────────────────────────────────────── */
.capabilities { display:grid; gap:0; margin-top:56px; }
@media (min-width:760px){ .capabilities { grid-template-columns:1fr 1fr; column-gap:64px; } }
.cap { padding:34px 0; border-top:1px solid var(--line); }
.cap h3 { font-size:1.3rem; }
.cap p { margin-top:12px; color:var(--muted); font-size:1.02rem; }

/* ── 퍼스널 브랜딩 밴드 (풀블리드 이미지 위 글자) ───────────────────── */
.band { position:relative; overflow:hidden; isolation:isolate; padding:clamp(120px,16vw,220px) 0; color:#fff; background:var(--x-navy); }
.band-img { position:absolute; inset:0; z-index:-2; width:100%; height:100%; object-fit:cover; }
.band::after {
  content:''; position:absolute; inset:0; z-index:-1;
  background:linear-gradient(90deg, rgba(6,17,29,.93) 0%, rgba(6,17,29,.80) 46%, rgba(6,17,29,.30) 100%);
}
@media (max-width:879px){
  .band::after { background:linear-gradient(180deg, rgba(6,17,29,.72) 0%, rgba(6,17,29,.90) 70%, rgba(6,17,29,.94) 100%); }
}
.band h2 { color:#fff; }
.band .lead { color:#c6d6e6; }
.band-copy { position:relative; z-index:1; }

/* ── 플랫폼 (다크) ────────────────────────────────────────────────── */
.platform-logo { height:34px; width:auto; }
.platform .lead { color:#c6d6e6; }
.outlet-note { margin-top:64px; font-size:.9rem; font-weight:600; color:#9db4cb; }
.marquee { margin-top:22px; overflow:hidden; mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent); }
.marquee-track { display:flex; gap:14px; width:max-content; animation:slide 52s linear infinite; }
.marquee-track img { height:58px; width:auto; padding:10px 18px; background:#fff; border-radius:var(--r-chip); object-fit:contain; }
@keyframes slide { from { transform:translateX(0); } to { transform:translateX(-50%); } }

/* ── 일하는 방식 ──────────────────────────────────────────────────── */
.steps { display:grid; gap:26px; margin-top:56px; }
@media (min-width:900px){ .steps { grid-template-columns:repeat(4,1fr); gap:30px; } }
/* 순서는 번호표가 아니라 자리로 읽힌다. 첫 칸의 선만 브랜드색이다. */
.step { padding-top:26px; border-top:2px solid var(--line); }
.step:first-child { border-top-color:var(--x-blue); }
.step h3 { font-size:1.1rem; }
.step p { margin-top:10px; color:var(--muted); font-size:.98rem; }

/* ── 문의 ─────────────────────────────────────────────────────────── */
.contact .row { display:flex; flex-wrap:wrap; justify-content:center; align-items:center; gap:14px 26px; margin-top:38px; }
.contact .tel { font-size:1.05rem; font-weight:700; color:var(--text); }

/* ── 회사 정보 ────────────────────────────────────────────────────── */
.facts { margin-top:52px; display:grid; }
@media (min-width:760px){ .facts { grid-template-columns:1fr 1fr; column-gap:64px; } }
.fact { display:flex; gap:22px; padding:17px 0; border-bottom:1px solid var(--line); font-size:.98rem; }
.fact dt { flex:0 0 122px; margin:0; color:var(--muted); font-weight:600; }
.fact dd { margin:0; font-weight:600; }

/* ── 푸터 ─────────────────────────────────────────────────────────── */
.site-foot { background:var(--bg-soft); padding:52px 0 64px; font-size:.8rem; line-height:1.9; color:var(--muted); }
.site-foot .wrap { max-width:var(--wrap-wide); }
.site-foot .logo img { height:19px; width:auto; opacity:.85; }
.site-foot .logo .on-dark { display:none; }
@media (prefers-color-scheme: dark){
  .site-foot .logo .on-light { display:none; }
  .site-foot .logo .on-dark { display:block; }
}
.site-foot .biz { margin-top:20px; display:flex; flex-wrap:wrap; gap:2px 18px; }
.site-foot .copy { margin-top:24px; padding-top:20px; border-top:1px solid var(--line); font-family:var(--latin); font-size:.72rem; letter-spacing:.02em; }

/* ── 스크롤 등장 ──────────────────────────────────────────────────── */
[data-reveal] { opacity:0; transform:translateY(22px); transition:opacity .8s cubic-bezier(.16,1,.3,1), transform .8s cubic-bezier(.16,1,.3,1); }
[data-reveal].in { opacity:1; transform:none; }

@media (prefers-reduced-motion: reduce){
  html { scroll-behavior:auto; }
  [data-reveal] { opacity:1; transform:none; transition:none; }
  .tile, .tile::before, .btn { transition:none; }
  .marquee { overflow-x:auto; }
  .marquee-track { animation:none; }
}