:root{--sky:#7fcef5;--sky-dark:#3aa6dc;--ink:#2b2f38;--muted:#5e6672;--bg:#ffffff;--soft:#f3f9fd;--card:#ffffff;--line:#e3edf3}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Nunito","Noto Sans KR",system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
img{max-width:100%;display:block}
a{color:var(--sky-dark)}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px}
/* header */
.site-header{position:sticky;top:0;z-index:20;background:var(--sky);box-shadow:0 2px 8px rgba(0,0,0,.06)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#fff}
.brand img{height:34px;width:auto}
.brand span{font-size:.72rem;letter-spacing:.22em;font-weight:800;opacity:.95}
.nav{display:flex;gap:4px;align-items:center;flex-wrap:wrap}
.nav a{color:#fff;text-decoration:none;font-weight:800;font-size:.86rem;letter-spacing:.06em;padding:8px 10px;border-radius:8px;cursor:pointer;list-style:none}
.nav a:hover,.nav a[aria-current=page]{background:rgba(255,255,255,.22)}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer;padding:6px}
@media (max-width:720px){
 .menu-btn{display:block}
 .nav{display:none;position:absolute;left:0;right:0;top:64px;background:var(--sky);flex-direction:column;align-items:stretch;padding:8px 16px 16px}
 .nav.open{display:flex}
  .brand span{display:none}
}
/* hero */
.hero{position:relative;background:url(../img/hero.jpg) center/cover no-repeat;min-height:340px;display:flex;align-items:center}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(127,206,245,.55),rgba(43,47,56,.45))}
.hero .wrap{position:relative;color:#fff;text-align:center;padding-top:56px;padding-bottom:56px}
.hero h1{font-size:clamp(2.2rem,7vw,4rem);margin:0;letter-spacing:.08em;text-shadow:0 2px 12px rgba(0,0,0,.25)}
/* sections */
section{padding:56px 0}
section.alt{background:var(--soft)}
h2.section-title{font-size:clamp(1.5rem,4vw,2.1rem);letter-spacing:.08em;text-align:center;margin:0 0 8px}
h3.group-title{font-size:1.2rem;margin:40px 0 16px;color:var(--sky-dark);text-align:center}
.lead{max-width:760px;margin:0 auto;text-align:center;font-size:1.08rem}
.awards{list-style:none;padding:0;margin:28px auto 0;max-width:760px;display:grid;gap:10px}
.awards li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;text-align:center;font-weight:700}
.awards small{display:block;font-weight:400;color:var(--muted)}
.feature{max-width:760px;margin:0 auto;text-align:center}
.feature img{height:auto;border-radius:14px;margin:0 auto 12px;box-shadow:0 6px 20px rgba(0,0,0,.08)}
.grid{display:flex;flex-wrap:wrap;justify-content:center;gap:24px}
.grid>.card{flex:0 1 calc((100% - 48px)/3)}
@media (max-width:860px){.grid>.card{flex-basis:calc((100% - 24px)/2)}}
@media (max-width:520px){.grid>.card{flex-basis:100%}}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s}
a.card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.08)}
.card img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;background:var(--soft)}
.card .body{padding:14px 16px 18px}
.card h4{margin:0 0 6px;font-size:1.08rem}
.card p{margin:0;color:var(--muted);font-size:.94rem;white-space:pre-line}
.card .note{display:block;margin-top:6px;font-size:.82rem;color:var(--sky-dark)}
/* contact */
.contact dl{max-width:560px;margin:24px auto 0;display:grid;grid-template-columns:110px 1fr;gap:10px 16px}
.contact dt{font-weight:800;color:var(--muted)}
.contact dd{margin:0}
/* gallery pages */
.back{display:inline-block;margin-top:24px;font-weight:800;text-decoration:none}
/* footer */
.site-footer{background:var(--ink);color:#cfd6df;text-align:center;padding:24px 16px;font-size:.88rem}