:root{
  --navy:#0f3470; --blue:#1e6fd9; --green:#2e9b4f; --teal:#058f6c;
  --ink:#1d2430; --muted:#5b6575; --line:#e3e7ee; --bg:#ffffff; --soft:#f4f7fa;
  --max:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Pretendard","Noto Sans KR",-apple-system,"Malgun Gothic",sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;word-break:keep-all}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo img{height:40px;width:auto}
.nav{display:flex;gap:28px;font-weight:600;font-size:15px}
.nav a{color:var(--muted);padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a.on{color:var(--navy);border-color:var(--green)}
.menu-btn{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer}
.menu-btn span{display:block;height:2px;background:var(--ink);margin:6px 8px}
@media(max-width:860px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a{padding:14px 20px;border-bottom:1px solid var(--line)}
  .logo img{height:34px}
}

/* page hero */
.page-hero{background:linear-gradient(120deg,var(--navy),var(--teal));color:#fff;padding:64px 0 56px}
.page-hero .eyebrow{font-size:13px;letter-spacing:.2em;opacity:.75;text-transform:uppercase}
.page-hero h1{font-size:clamp(28px,4vw,40px);margin-top:6px}
section{padding:72px 0}
section.soft{background:var(--soft)}
h2.sec{font-size:clamp(22px,3vw,30px);color:var(--navy);margin-bottom:28px}
p.lead{font-size:18px;color:var(--muted)}

/* home */
.hero{background:#fff;padding:40px 0 0}
.hero img{width:100%;border-radius:12px}
.quick{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quick a{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 20px;text-align:center;transition:.2s}
.quick a:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(15,52,112,.10);border-color:var(--green)}
.quick img{width:84px;height:84px;margin:0 auto 14px;border-radius:50%;object-fit:cover}
.quick b{display:block;font-size:17px;color:var(--navy)}
.quick small{color:var(--muted)}
@media(max-width:760px){.quick{grid-template-columns:repeat(2,1fr)}}

/* greeting */
.greeting{max-width:760px;font-size:17px}
.greeting p+p{margin-top:18px}
.sign{margin-top:36px;text-align:right;font-weight:600;color:var(--navy)}

/* services */
.svc{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc article{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.svc article img{aspect-ratio:1/1;object-fit:cover;width:100%;max-height:220px}
.svc article div{padding:22px}
.svc h3{color:var(--navy);font-size:19px;margin-bottom:8px}
.svc ul{padding-left:18px;color:var(--muted);font-size:15px}
@media(max-width:860px){.svc{grid-template-columns:1fr}}

/* certs */
.certs{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.certs a{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--line);border-radius:12px;padding:18px 22px;background:#fff}
.certs a:hover{border-color:var(--green)}
.certs em{font-style:normal;color:var(--muted);font-size:14px}
.certs .go{color:var(--green);font-weight:700;font-size:14px;white-space:nowrap}
@media(max-width:760px){.certs{grid-template-columns:1fr}}
.btn{display:inline-block;background:var(--green);color:#fff;padding:12px 26px;border-radius:999px;font-weight:700}
.btn:hover{background:var(--teal)}

/* clients */
.logos{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.logos div{background:#fff;border:1px solid var(--line);border-radius:12px;height:96px;display:flex;align-items:center;justify-content:center;padding:16px}
.logos img{max-height:56px;width:auto;object-fit:contain}

/* location */
.info{width:100%;border-collapse:collapse;font-size:16px}
.info th,.info td{border-bottom:1px solid var(--line);padding:14px 10px;text-align:left;vertical-align:top}
.info th{width:120px;color:var(--navy)}
.maplinks{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn.line{background:#fff;color:var(--navy);border:1px solid var(--line)}

/* footer */
.site-footer{background:#2b313b;color:#c9ced6;font-size:14px;padding:36px 0;text-align:center;line-height:1.9}
.site-footer b{color:#fff}

/* hero slider */
.slider{position:relative;height:clamp(440px,72vh,700px);overflow:hidden;background:#0b2a1c;color:#fff}
.slides,.slide{position:absolute;inset:0}
.slide{opacity:0;visibility:hidden;transition:opacity 1.2s ease,visibility 0s 1.2s}
.slide.is-on{opacity:1;visibility:visible;transition:opacity 1.2s ease}
.slide img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);transition:transform 7s ease-out}
.slide.is-on img{transform:scale(1)}
.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,24,40,.72) 0%,rgba(6,24,40,.35) 45%,rgba(6,24,40,0) 75%),linear-gradient(0deg,rgba(0,0,0,.35),rgba(0,0,0,0) 40%)}
.cap{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);z-index:2}
.cap>*{opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s ease}
.slide.is-on .cap>*{opacity:1;transform:none}
.slide.is-on .cap>*:nth-child(2){transition-delay:.15s}
.slide.is-on .cap>*:nth-child(3){transition-delay:.3s}
.slide.is-on .cap>*:nth-child(4){transition-delay:.45s}
.cap .no{display:inline-block;font-size:14px;letter-spacing:.08em;padding:6px 14px;border:1px solid rgba(255,255,255,.5);border-radius:999px;backdrop-filter:blur(4px)}
.cap h2{font-size:clamp(30px,5vw,56px);line-height:1.25;font-weight:800;margin:18px 0 14px;text-shadow:0 2px 18px rgba(0,0,0,.25)}
.cap p{font-size:clamp(15px,1.6vw,19px);opacity:.92;max-width:560px;margin-bottom:28px}
.arrow{position:absolute;bottom:20px;z-index:3;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.08);color:#fff;font-size:26px;line-height:1;cursor:pointer;backdrop-filter:blur(4px);transition:.2s}
.arrow:hover{background:rgba(255,255,255,.25)}
.arrow.prev{right:76px}.arrow.next{right:24px}
.dots{position:absolute;left:0;right:0;bottom:40px;z-index:3;display:flex;gap:10px}
.dots button{width:56px;height:4px;border:0;padding:0;background:rgba(255,255,255,.35);border-radius:2px;cursor:pointer;overflow:hidden}
.dots i{display:block;height:100%;width:0;background:#fff}
.dots button.on i{animation:fill 6s linear forwards}
.slider.paused .dots button.on i{animation-play-state:paused}
@keyframes fill{to{width:100%}}
@media(max-width:860px){.arrow{display:none}.cap{top:auto;bottom:80px;transform:none}.slide::after{background:linear-gradient(0deg,rgba(6,24,40,.8) 0%,rgba(6,24,40,.35) 55%,rgba(6,24,40,.1) 100%)}}
@media(prefers-reduced-motion:reduce){.slide,.slide img,.cap>*{transition:none!important}.dots button.on i{animation:none;width:100%}}