:root{
  --brand:#1f6feb; --brand-dark:#1a4fb4; --ink:#1b2330; --muted:#5b6675;
  --line:#e6e9ef; --bg:#f6f8fb; --card:#fff; --accent:#0fb888;
  --radius:12px; --shadow:0 2px 12px rgba(20,40,80,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:'Nanum Gothic','Malgun Gothic',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1080px;margin:0 auto;padding:0 20px}

/* 헤더 */
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--ink)}
.brand .logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center;color:#fff;font-weight:900}
.brand small{display:block;font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.02em}
.brand-logo{height:42px;width:auto;display:block}
nav.main{display:flex;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-item>.nav-top{display:inline-block;color:var(--ink);font-weight:600;font-size:15px;padding:10px 12px;white-space:nowrap}
.nav-item>.nav-top:hover{color:var(--brand);text-decoration:none}
.nav-item .caret{font-size:10px;color:var(--muted)}
.submenu{position:absolute;top:100%;left:0;min-width:200px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:6px;opacity:0;visibility:hidden;transform:translateY(6px);transition:.16s;z-index:60}
.nav-item.has-sub:hover .submenu,.nav-item.has-sub:focus-within .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:block;padding:9px 12px;border-radius:7px;color:var(--ink);font-size:14px;font-weight:500;white-space:nowrap}
.submenu a:hover{background:#f2f6ff;color:var(--brand);text-decoration:none}
.nav-auth{display:flex;align-items:center;gap:6px;margin-left:12px;padding-left:12px;border-left:1px solid var(--line)}
.nav-auth a{color:var(--ink);font-weight:600;font-size:14px;padding:8px 8px}
.nav-auth a:hover{color:var(--brand);text-decoration:none}
.nav-cta{background:var(--brand);color:#fff !important;padding:8px 14px;border-radius:8px}
.nav-cta:hover{background:var(--brand-dark)}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--ink)}
.bar-right{display:flex;align-items:center;gap:2px}
.portal-link{display:inline-flex;align-items:center;color:var(--brand);padding:7px 9px;border-radius:8px;line-height:0}
.portal-link:hover{color:var(--brand-dark);background:#eef4ff;text-decoration:none}
.bar-auth{display:inline-flex;align-items:center;padding:6px 12px;border-radius:8px;font-size:13px;font-weight:600;white-space:nowrap;border:1px solid var(--line);color:var(--ink);margin-left:2px}
.bar-auth:hover{background:#f2f6ff;text-decoration:none}
.bar-auth.is-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.bar-auth.is-primary:hover{background:var(--brand-dark)}
.admin-header .bar-auth{color:#e6ebf2;border-color:rgba(255,255,255,.22)}
.admin-header .bar-auth:hover{background:rgba(255,255,255,.1)}

/* 히어로 */
.hero{background:linear-gradient(135deg,#eef4ff,#eafaf4);border-bottom:1px solid var(--line)}
.hero.hero-photo{position:relative;background:#ffffff url('../img/hero-sea.svg') center/cover no-repeat}
.hero.hero-photo::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.40),rgba(255,255,255,0) 55%);pointer-events:none}
.hero.hero-photo .inner{position:relative;z-index:1}
.hero.hero-photo h1{color:#1c3c70;text-shadow:0 1px 2px rgba(255,255,255,.85)}
.hero.hero-photo p.lead{color:#28497a;opacity:1}
.hero.hero-photo .badge{background:rgba(255,255,255,.85);border-color:#cfe0f0;color:#28497a}
/* 모바일 세로: 배경 좌우 잘림 방지 — 전체 장면이 보이도록(하단 밴드) */
@media(max-width:640px){
  .hero.hero-photo{background-size:contain;background-position:center bottom;background-color:#ffffff}
  .hero.hero-photo .inner{padding:44px 0 40vw}
}
.hero .inner{padding:64px 0;text-align:center}
.hero h1{font-size:34px;margin:0 0 10px;letter-spacing:-.01em;text-shadow:0 1px 0 rgba(255,255,255,.6)}
.hero p.lead{font-size:18px;color:var(--ink);opacity:.85;margin:0 0 26px}
.badge{display:inline-block;background:rgba(255,255,255,.9);border:1px solid var(--line);color:var(--muted);padding:5px 12px;border-radius:999px;font-size:13px;margin-bottom:18px}

/* 활동 하이라이트 + 갤러리 */
.highlight{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:center}
.highlight img{width:100%;border-radius:14px;box-shadow:var(--shadow);display:block}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gallery a{display:block;aspect-ratio:3/4;overflow:hidden;border-radius:12px;box-shadow:var(--shadow)}
.gallery img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
.gallery a:hover img{transform:scale(1.06)}
@media(max-width:820px){.highlight{grid-template-columns:1fr}.gallery{grid-template-columns:1fr 1fr}}
.btn{display:inline-block;padding:12px 22px;border-radius:9px;font-weight:700;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);text-decoration:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);margin-left:8px}

/* 섹션/카드 */
section.block{padding:52px 0}
h2.section-title{font-size:24px;margin:0 0 6px;text-align:center}
p.section-sub{color:var(--muted);text-align:center;margin:0 0 32px}
.grid{display:grid;gap:18px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px;font-size:17px}
.card p{margin:0;color:var(--muted);font-size:14px}
.card .ico{font-size:26px;margin-bottom:10px}

/* 공지 리스트 */
.notice-list{list-style:none;margin:0;padding:0}
.notice-list li{display:flex;justify-content:space-between;gap:12px;padding:12px 4px;border-bottom:1px solid var(--line)}
.notice-list li:last-child{border-bottom:none}
.notice-list .t{font-weight:600;color:var(--ink)}
.notice-list .d{color:var(--muted);font-size:13px;white-space:nowrap}
.pin{color:var(--accent);font-weight:800;margin-right:6px}

/* 글 목록 카드(썸네일) */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s;color:var(--ink)}
.post-card:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(20,40,80,.12);text-decoration:none}
.pc-thumb{aspect-ratio:16/10;overflow:hidden;background:#eef2f8}
.pc-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.pc-noimg{display:grid;place-items:center;background:linear-gradient(135deg,#eef4ff,#eafaf4)}
.pc-noimg span{color:var(--brand);font-weight:800;font-size:15px;opacity:.7}
.pc-body{padding:14px 16px;display:flex;flex-direction:column;gap:6px;flex:1}
.pc-cat{color:var(--brand);font-size:12px;font-weight:700}
.pc-title{margin:0;font-size:15px;line-height:1.45;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-date{margin-top:auto;color:var(--muted);font-size:12px}
@media(max-width:820px){.post-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.post-grid{grid-template-columns:1fr}}

/* 푸터 */
.site-footer{background:#0f1826;color:#c4ccd8;margin-top:40px}
.site-footer .inner{padding:34px 0;font-size:14px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}
.site-footer a{color:#9db8ff}
.site-footer .org{font-weight:700;color:#fff}

/* 내부 로그인 */
.auth-wrap{min-height:calc(100vh - 64px);display:grid;place-items:center;padding:40px 16px}
.auth-card{width:100%;max-width:380px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:32px;box-shadow:var(--shadow)}
.auth-card h1{font-size:20px;margin:0 0 4px;text-align:center}
.auth-card p.sub{color:var(--muted);text-align:center;margin:0 0 22px;font-size:14px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:9px;font-size:15px}
.field input:focus{outline:none;border-color:var(--brand)}
.btn-block{width:100%;text-align:center}
.alert{background:#fdecec;color:#b42323;border:1px solid #f6c9c9;padding:10px 12px;border-radius:9px;font-size:14px;margin-bottom:16px}

/* 내부 대시보드 */
.admin-header{background:#0f1826;color:#fff;padding-top:env(safe-area-inset-top)}
.admin-header .bar{display:flex;align-items:center;justify-content:space-between;min-height:56px;position:relative}
.admin-header .brand{color:#fff}
.admin-header nav{display:flex;align-items:center;flex-wrap:wrap;gap:2px}
.admin-header nav a{color:#c4ccd8;padding:8px 10px;font-size:14px;white-space:nowrap}
.admin-header nav a:hover{color:#fff;text-decoration:none}
.admin-header nav .who{color:#7b8aa0;font-size:13px;padding:0 8px}
.admin-nav-toggle{display:none;background:none;border:none;color:#fff;font-size:24px;line-height:1;cursor:pointer;padding:6px}
.admin-header .bar-right{display:flex;align-items:center;gap:2px}
.home-link{display:inline-flex;align-items:center;color:#c4ccd8;padding:7px 9px;border-radius:8px;line-height:0}
.home-link:hover{color:#fff;background:rgba(255,255,255,.09);text-decoration:none}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.stat .n{font-size:26px;font-weight:800;line-height:1.1}
.stat .l{color:var(--muted);font-size:13px;margin-top:4px}

/* PWA 전체화면: 공개 헤더도 상태바 안전영역 확보 */
.site-header{padding-top:env(safe-area-inset-top)}

@media(max-width:920px){
  .grid.cols-3,.grid.cols-4{grid-template-columns:1fr 1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:27px}
  .nav-toggle{display:block}
  /* 관리자 헤더: 햄버거 + 접이식 nav */
  .admin-nav-toggle{display:block}
  .admin-header nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
    background:#0f1826;padding:6px;z-index:60;border-top:1px solid rgba(255,255,255,.12);box-shadow:0 8px 20px rgba(0,0,0,.35);max-height:75vh;overflow-y:auto}
  .admin-header.nav-open nav{display:flex}
  .admin-header nav a{padding:13px 12px;font-size:15px;border-bottom:1px solid rgba(255,255,255,.07)}
  .admin-header nav .who{padding:12px;color:#8a97a8;border-bottom:1px solid rgba(255,255,255,.07)}
  /* 대시보드 컴팩트 */
  .stat{padding:13px}
  .stat .n{font-size:21px}
  .stat .l{font-size:12px}
  .card{padding:16px}
  nav.main{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:8px;gap:0;max-height:80vh;overflow-y:auto}
  .site-header.nav-open nav.main{display:flex}
  .nav-item>.nav-top{display:block;padding:12px 10px;border-bottom:1px solid var(--line)}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:0 0 6px 14px;min-width:0}
  .submenu a{padding:9px 10px}
  .nav-auth{margin:8px 0 0;padding:10px 0 0;border-left:none;border-top:1px solid var(--line)}
}
@media(max-width:520px){
  .grid.cols-3,.grid.cols-4{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr;gap:9px}   /* 지표는 2열 유지(공간 절약) */
}