:root{
    --ink:#1B1F2A;
    --ink-soft:#3B4252;
    --paper:#F3ECDD;
    --paper-dark:#E6D9BC;
    --seal:#A32F2F;
    --seal-dark:#7E2222;
    --brass:#B08A4E;
    --pine:#4A5D45;
    --line:rgba(27,31,42,0.14);
    --radius:2px;
    --header-bg:rgba(243,236,221,0.92);
    --footer-bg:var(--ink);
    --footer-fg:var(--paper-dark);
    --btn-primary-bg:var(--ink);
    --btn-primary-fg:var(--paper);
    --glow-1:rgba(176,138,78,0.06);
    --glow-2:rgba(163,47,47,0.05);
  }
  :root[data-theme="dark"]{
    --ink:#F3ECDD;
    --ink-soft:#B7B2A3;
    --paper:#15130F;
    --paper-dark:#1F1B14;
    --seal:#C23B3B;
    --seal-dark:#8E2323;
    --brass:#D4AF6A;
    --pine:#6B8F63;
    --line:rgba(243,236,221,0.16);
    --header-bg:rgba(21,19,15,0.9);
    --footer-bg:#0E0C09;
    --footer-fg:#B7B2A3;
    --btn-primary-bg:var(--brass);
    --btn-primary-fg:#15130F;
    --glow-1:rgba(212,175,106,0.14);
    --glow-2:rgba(194,59,59,0.12);
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--paper);
    color:var(--ink);
    font-family:'Noto Sans KR', sans-serif;
    line-height:1.7;
    word-break:keep-all; overflow-wrap:break-word; /* 한글은 어절 단위로 줄바꿈(큰 글씨에서 "하/고" 방지) */
    -webkit-font-smoothing:antialiased;
    transition:background .25s ease, color .25s ease;
  }
  h1,h2,h3,.brand{font-family:'Noto Serif KR', serif;}
  a{color:inherit; text-decoration:none;}
  img{max-width:100%; display:block;}
  .wrap{max-width:1080px; margin:0 auto; padding:0 28px;}

  /* texture */
  body::before{
    content:"";
    position:fixed; inset:0; pointer-events:none; z-index:0;
    background-image:
      radial-gradient(circle at 15% 20%, var(--glow-1), transparent 40%),
      radial-gradient(circle at 85% 75%, var(--glow-2), transparent 45%);
  }
  :root[data-theme="dark"] body::before{
    background-image:
      radial-gradient(ellipse 55% 45% at 88% 92%, rgba(212,175,106,0.16), transparent 62%),
      radial-gradient(circle at 15% 20%, var(--glow-1), transparent 42%),
      radial-gradient(circle at 85% 78%, var(--glow-2), transparent 50%),
      radial-gradient(circle at 50% 50%, transparent 45%, rgba(0,0,0,0.55) 100%);
  }

  /* ---------- NAV ---------- */
  header{
    position:sticky; top:0; z-index:50;
    background:var(--header-bg);
    backdrop-filter:blur(6px);
    border-bottom:1px solid var(--line);
    transition:background .25s ease;
  }
  nav.wrap{
    display:flex; flex-direction:column; align-items:center;
    gap:10px; padding:16px 28px; height:auto;
  }
  .brand{font-size:1.1rem; font-weight:700; letter-spacing:0.02em; display:flex; align-items:center; gap:10px; text-align:center;}
  .brand .seal-mark{
    width:26px; height:26px; border-radius:50%;
    background:var(--seal); color:#F3ECDD;
    display:flex; align-items:center; justify-content:center;
    font-size:0.72rem; font-weight:700; font-family:'Noto Serif KR',serif;
    flex:none;
    transition:box-shadow .25s ease;
  }
  :root[data-theme="dark"] .brand .seal-mark{
    box-shadow:0 0 14px 2px rgba(194,59,59,0.55);
  }
  .navlinks{
    display:flex; flex-wrap:wrap; justify-content:center;
    gap:8px 22px; font-size:0.86rem;
  }
  .navlinks a{position:relative; padding:4px 0; color:var(--ink-soft); white-space:nowrap;}
  .navlinks a:hover{color:var(--seal);}
  .navlinks a.active-link{color:var(--seal); font-weight:700;}
  .navlinks a.nav-secure{color:#bbb; font-weight:700; pointer-events:auto; cursor:pointer;}
  .navlinks a.nav-secure.authed{color:#7CB342; pointer-events:auto; cursor:pointer;}
  .navlinks a.nav-secure.no-access{color:#bbb; pointer-events:none; cursor:default;}
  .navToggle{
    display:none;
    flex-direction:column; justify-content:center; align-items:center;
    gap:5px; width:34px; height:34px; flex:none;
    border:none; background:none; cursor:pointer; padding:0;
  }
  .navToggle span{
    display:block; width:22px; height:2px; background:var(--ink);
    transition:transform .25s ease, opacity .25s ease;
  }

  /* ---------- 테마 토글 (라이트/묵인 다크) ---------- */
  .theme-toggle{
    display:inline-flex; align-items:center; gap:8px;
    padding:5px 12px; border:1px solid var(--line); border-radius:14px;
    background:none; cursor:pointer; font-family:'Noto Sans KR',sans-serif;
    font-size:0.66rem; color:var(--ink-soft); flex:none;
    transition:border-color .2s ease, color .2s ease;
  }
  .theme-toggle:hover{border-color:var(--brass); color:var(--ink);}
  .theme-toggle .mode-label{display:flex; flex-direction:column; line-height:1.15; text-align:left;}
  .theme-toggle .dot{
    width:8px; height:8px; border-radius:50%; background:var(--seal); flex:none;
    transition:background .2s ease;
  }
  :root[data-theme="dark"] .theme-toggle .dot{background:var(--brass);}

  @media (max-width:760px){
    nav.wrap{
      flex-direction:row; justify-content:space-between; align-items:center;
      padding:14px 20px; position:relative;
    }
    .brand{font-size:1rem;}
    .navToggle{display:flex;}
    .navlinks{
      display:none;
      position:absolute; top:100%; right:20px;
      width:min(240px, 78vw);
      flex-direction:column; align-items:stretch;
      gap:2px; padding:10px;
      background:var(--paper);
      border:1px solid var(--line);
      border-radius:10px;
      box-shadow:0 12px 28px rgba(27,31,42,0.22);
      max-height:calc(100vh - 90px);
      overflow-y:auto;
      overscroll-behavior:contain; /* 메뉴 끝까지 밀어도 뒤 화면이 따라 스크롤되지 않게 */
    }
    .navlinks.open{display:flex;}
    /* 메뉴가 열려 있는 동안 뒤 화면 고정 — html 에만 건다. body 까지 걸면 body 가 따로 스크롤 상자가 되어
       아래로 내린 상태에서 머리줄(sticky)이 문서 맨 위로 돌아가 메뉴와 상단 바가 화면 밖으로 사라진다 */
    html:has(.navlinks.open){overflow:hidden;}
    .navlinks a{padding:9px 10px; font-size:0.95rem; text-align:left; border-radius:6px;}
    .navlinks a:hover{background:rgba(176,138,78,0.12);}
  }

  .pager{
    display:flex; justify-content:space-between; gap:16px;
    max-width:1080px; margin:56px auto 0; padding:24px 28px 0;
    border-top:1px solid var(--line);
  }
  .pager a{ font-size:0.88rem; color:var(--ink-soft); display:flex; align-items:center; gap:8px; }
  .pager a:hover{color:var(--seal);}
  .pager .next{margin-left:auto; text-align:right;}

  /* ---------- HERO ---------- */
  .hero{
    position:relative; padding:96px 0 42px; text-align:center;
    overflow:hidden;
  }
  .hero > *{position:relative; z-index:1;}
  :root[data-theme="dark"] .hero::before{
    content:"";
    position:absolute; bottom:-220px; right:-160px;
    width:820px; height:680px; pointer-events:none; z-index:0;
    background:radial-gradient(ellipse at center, rgba(212,175,106,0.16), rgba(212,175,106,0.06) 45%, transparent 72%);
    filter:blur(2px);
  }
  .hero h1{
    font-size:clamp(2.1rem, 5vw, 3.4rem);
    font-weight:900; line-height:1.35; color:var(--ink);
  }
  .hero h1 span{color:var(--seal);}
  .hero p.lead{
    max-width:560px; margin:22px auto 0; color:var(--ink-soft);
    font-size:1.02rem;
  }
  .hero-cta{display:flex; gap:14px; justify-content:center; margin-top:34px; flex-wrap:wrap;}
  .btn{
    padding:12px 26px; font-size:0.92rem; border-radius:var(--radius);
    border:1px solid var(--ink); transition:all .2s ease;
  }
  .btn.primary{background:var(--btn-primary-bg); color:var(--btn-primary-fg); border-color:var(--btn-primary-bg);}
  .btn.primary:hover{background:var(--seal); border-color:var(--seal); color:var(--btn-primary-fg);}
  .btn.ghost:hover{background:var(--ink); color:var(--paper);}

  /* ---------- 영상 ---------- */
  .video-embed{width:100%; aspect-ratio:16/9; overflow:hidden; border:1px solid var(--line); background:var(--paper-dark);}
  .video-embed iframe{display:block; width:100%; height:100%; border:0;}
  .video-play{display:block; width:100%; height:100%; padding:0; border:0;
    background:none; cursor:pointer; position:relative;}
  .video-play img{display:block; width:100%; height:100%; object-fit:cover;}
  .video-play-icon{position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
    width:68px; height:48px; border-radius:12px; background:rgba(0,0,0,.62);
    transition:background .2s ease;}
  .video-play-icon::after{content:""; position:absolute; left:50%; top:50%;
    transform:translate(-40%,-50%); border-style:solid; border-width:11px 0 11px 19px;
    border-color:transparent transparent transparent #fff;}
  .video-play:hover .video-play-icon,
  .video-play:focus-visible .video-play-icon{background:#c00;}

  /* ---------- SECTION SHELL ---------- */
  section{position:relative; padding:64px 0; z-index:1;}
  .kicker{
    font-size:0.78rem; letter-spacing:0.3em; color:var(--brass);
    font-weight:700; margin-bottom:10px; text-transform:uppercase;
  }
  h2.title{font-size:clamp(1.5rem,3vw,2rem); font-weight:700; margin-bottom:14px;}
  .section-intro{max-width:620px; color:var(--ink-soft); margin-bottom:44px;}

  /* ---------- 인사말 ---------- */
  .greeting{
    display:grid; grid-template-columns:180px 1fr; gap:40px; align-items:start;
  }
  .greeting .portrait{
    width:180px; height:220px; background:var(--paper-dark);
    border:1px solid var(--line); display:flex; align-items:center; justify-content:center;
    color:var(--ink-soft); font-size:0.8rem; text-align:center; padding:10px;
  }
  .greeting blockquote{font-size:1.02rem; color:var(--ink-soft);}
  .greeting .sign{margin-top:20px; font-weight:700; font-family:'Noto Serif KR',serif;}
  @media (max-width:640px){ .greeting{grid-template-columns:1fr;} .greeting .portrait{width:100%;} }

  /* ---------- 연혁 timeline ---------- */
  .timeline{list-style:none;}
  .timeline li{
    position:relative; padding:0 0 34px 34px; border-left:1px solid var(--line);
  }
  .timeline li:last-child{padding-bottom:0;}
  .timeline li::before{
    content:""; position:absolute; left:-5px; top:4px;
    width:9px; height:9px; border-radius:50%; background:var(--seal);
  }
  .timeline .year{font-family:'Noto Serif KR',serif; font-weight:700; color:var(--seal); font-size:0.95rem;}
  .timeline .desc{color:var(--ink-soft); margin-top:4px; font-size:0.94rem;}
  .timeline .desc b{color:var(--ink); font-weight:700;}
  .timeline .todo{color:var(--seal); font-size:0.82em; white-space:nowrap;}
  .era-head{
    font-family:'Noto Serif KR',serif; font-weight:700; font-size:1.05rem;
    color:var(--ink); margin:40px 0 18px;
  }
  .era-head:first-of-type{margin-top:8px;}

  /* ---------- 시조/조직도 ---------- */
  .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:28px;}
  @media (max-width:820px){ .grid-3{grid-template-columns:1fr 1fr;} }
  @media (max-width:560px){ .grid-3{grid-template-columns:1fr;} }
  .card{
    background:rgba(255,255,255,0.35); border:1px solid var(--line);
    padding:26px 22px; transition:background .25s ease;
  }
  :root[data-theme="dark"] .card{ background:rgba(255,255,255,0.045); }
  .card .role{font-size:0.78rem; letter-spacing:0.15em; color:var(--brass); font-weight:700; text-transform:uppercase;}
  .card .name{font-family:'Noto Serif KR',serif; font-weight:700; font-size:1.1rem; margin:8px 0 6px;}
  .card .desc{font-size:0.88rem; color:var(--ink-soft);}

  /* ---------- 항렬표 ---------- */
  table{width:100%; border-collapse:collapse; font-size:0.92rem;}
  th,td{padding:12px 14px; border-bottom:1px solid var(--line); text-align:left;}
  th{font-family:'Noto Serif KR',serif; color:var(--seal); font-weight:700; border-bottom:2px solid var(--ink);}
  tr:hover td{background:rgba(176,138,78,0.06);}
  .table-wrap{overflow-x:auto;}

  /* ---------- 행사/공지 ---------- */
  .notice-list{list-style:none;}
  .notice-list li{
    display:flex; justify-content:space-between; gap:20px;
    padding:16px 0; border-bottom:1px solid var(--line);
    font-size:0.94rem;
  }
  .notice-list .tag{
    font-size:0.7rem; padding:2px 8px; border:1px solid var(--seal); color:var(--seal);
    border-radius:20px; margin-right:10px; white-space:nowrap;
  }
  .notice-list .date{color:var(--ink-soft); font-size:0.85rem; white-space:nowrap;}

  .notice-list li.notice-item{display:block;}
  .notice-item .row{display:flex; flex-wrap:wrap; justify-content:space-between; align-items:center; gap:4px 20px; cursor:pointer;}
  .notice-item .notice-title{min-width:0;} /* 큰 글씨: 제목+날짜가 안 들어가면 날짜를 다음 줄로 */
  .notice-item .row:hover .notice-title{color:var(--seal);}
  .notice-item .date{color:var(--ink-soft); font-size:0.85rem; white-space:nowrap; flex:none;}
  @media (max-width:480px){ /* 휴대폰(+큰 글씨): 날짜·표식이 줄 밖으로 밀려나지 않게 */
    .notice-list li{flex-wrap:wrap; gap:4px 20px;}
    .notice-list .date, .notice-item .date, .timeline .todo{white-space:normal;}
    .notice-item .date{flex:0 1 auto;}
  }
  .notice-content{display:none; margin-top:12px; padding:14px 16px; background:rgba(255,255,255,0.35); border:1px solid var(--line); font-size:0.9rem; color:var(--ink-soft); white-space:pre-wrap; line-height:1.7;}
  .notice-content.open{display:block;}
  .notice-actions{margin-top:10px; display:flex; gap:8px; justify-content:flex-end;}
  .notice-actions button{font-size:0.78rem; padding:4px 12px; border:1px solid var(--line); background:none; cursor:pointer; color:var(--ink-soft); border-radius:2px; font-family:inherit;}
  .notice-actions button:hover{border-color:var(--seal); color:var(--seal);}
  .notice-toolbar{display:flex; justify-content:flex-end; margin-bottom:16px;}
  .notice-toolbar button{padding:8px 18px; font-size:0.85rem; border:1px solid var(--ink); background:var(--ink); color:var(--paper); cursor:pointer; border-radius:2px; font-family:inherit;}

  .n-modal{display:none; position:fixed; inset:0; background:rgba(27,31,42,0.5); z-index:1000; align-items:center; justify-content:center; padding:16px;}
  .n-modal.open{display:flex;}
  .n-modal .box{background:var(--paper); border:1px solid var(--line); padding:26px; width:100%; max-width:480px; max-height:85vh; overflow-y:auto;}
  .n-modal h3{font-family:'Noto Serif KR',serif; margin-bottom:16px; color:var(--seal);}
  .n-modal .form-group{margin-bottom:14px;}
  .n-modal label{display:block; font-size:0.8rem; color:var(--ink-soft); margin-bottom:6px;}
  .n-modal input, .n-modal textarea, .n-modal select{width:100%; padding:10px; border:1px solid var(--line); background:var(--paper-dark); color:var(--ink); font-family:inherit; font-size:0.9rem;}
  input:-webkit-autofill, input:-webkit-autofill:hover, input:-webkit-autofill:focus, input:-webkit-autofill:active{-webkit-box-shadow:0 0 0 1000px var(--paper-dark) inset !important; box-shadow:0 0 0 1000px var(--paper-dark) inset !important; -webkit-text-fill-color:var(--ink) !important; caret-color:var(--ink); transition:background-color 9999s ease-in-out 0s;}
  .n-modal textarea{height:140px; resize:vertical;}
  .n-modal .btns{margin-top:14px; display:flex; gap:8px; justify-content:flex-end;}
  .n-modal .btns button{padding:8px 18px; font-size:0.85rem; cursor:pointer; border:1px solid var(--ink); font-family:inherit;}
  .n-modal .btn-cancel{background:none; color:var(--ink);}
  .n-modal .btn-save{background:var(--ink); color:var(--paper);}

  /* ---------- 오시는 길 ---------- */
  .contact-grid{display:flex; flex-direction:column; gap:14px;}
  @media (max-width:720px){ .contact-grid{grid-template-columns:1fr;} }
  .map-box{
    height:280px; background:
      repeating-linear-gradient(45deg, var(--paper-dark), var(--paper-dark) 10px, var(--paper) 10px, var(--paper) 20px);
    border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center;
    color:var(--ink-soft); font-size:0.85rem; text-align:center;
  }
  .info-list{list-style:none; font-size:0.94rem;}
  .info-list li{display:flex; gap:14px; padding:10px 0; border-bottom:1px solid var(--line);}
  .info-list li > span:last-child{min-width:0; overflow-wrap:anywhere;}
  .info-list .label{width:80px; flex:none; color:var(--brass); font-weight:700; font-size:0.82rem; letter-spacing:0.05em;}

  footer{
    background:var(--footer-bg); color:var(--footer-fg);
    padding:44px 0 30px; text-align:center; font-size:0.85rem;
    position:relative; z-index:1;
    transition:background .25s ease;
  }
  footer .brand{color:var(--footer-fg); justify-content:center; margin-bottom:10px;}
  footer .fine{opacity:0.55; margin-top:12px; font-size:0.78rem;}

  /* ---------- 조직도 트리 ---------- */
  .org-chart{display:flex; flex-direction:column; align-items:center; margin-top:16px;}

  .org-node{display:flex; flex-direction:column; align-items:center; text-align:center; width:112px;}
  .org-photo{
    width:76px; height:76px; border-radius:50%; flex:none;
    background:var(--paper-dark); border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center; overflow:hidden;
    color:var(--ink-soft); margin-bottom:10px;
  }
  .org-photo img{width:100%; height:100%; object-fit:cover;}
  .org-photo svg{width:34px; height:34px; fill:none; stroke:currentColor; stroke-width:1.6;}
  .org-node .role{font-size:0.72rem; letter-spacing:0.1em; color:var(--brass); font-weight:700; text-transform:uppercase;}
  .org-node .name{font-family:'Noto Serif KR',serif; font-weight:700; font-size:0.98rem; margin-top:4px;}

  .org-node.sm{width:84px;}
  .org-node.sm .org-photo{width:56px; height:56px; margin-bottom:8px;}
  .org-node.sm .org-photo svg{width:26px; height:26px;}
  .org-node.sm .name{font-size:0.86rem; margin-top:0;}

  .org-row{display:flex; justify-content:center; gap:36px; flex-wrap:wrap;}

  .org-top-row{
    display:grid; grid-template-columns:minmax(0,1fr) auto auto auto minmax(0,1fr);
    align-items:center; column-gap:12px; width:100%;
  }
  .org-top-row > .peer-side:first-child{justify-self:end;}
  .org-top-row > .peer-side:last-child{justify-self:start;}
  .org-top-row > .peer-connector{justify-self:center;}
  .org-top-row > .org-node.lead{justify-self:center;}
  .peer-connector{width:40px; height:0; border-top:1px dashed var(--brass); flex:none;}
  .org-node.lead .org-photo{width:92px; height:92px; border-color:var(--seal);}
  .org-node.lead .org-photo svg{width:40px; height:40px;}
  .org-node.lead .role{color:var(--seal);}
  .org-row.two-col{display:grid; grid-template-columns:repeat(2,1fr); justify-items:center; gap:16px 28px;}

  .org-chart-scroll{width:100%; overflow-x:auto; -webkit-overflow-scrolling:touch; padding-bottom:8px;}
  .org-chart-scroll .org-chart{min-width:840px;}

  .org-line-v{width:1px; height:26px; background:var(--line);}
  .org-line-v.dashed{width:0; background:none; border-left:1px dashed var(--brass); height:26px;}

  .advisor-box{
    border:1px dashed var(--brass); padding:22px 28px;
    display:flex; flex-direction:column; align-items:center; gap:14px;
  }
  .advisor-box > .role{font-size:0.78rem; letter-spacing:0.15em; color:var(--brass); font-weight:700;}

  .org-group-box{
    border:1px solid var(--line); padding:26px 24px;
    display:flex; flex-direction:column; align-items:center; gap:16px;
    max-width:100%;
  }
  .org-group-box > .role{font-size:0.78rem; letter-spacing:0.15em; color:var(--brass); font-weight:700;}
  .org-group-box .org-row{gap:20px 26px; max-width:820px;}

  .branch{position:relative; padding-top:26px; display:flex; justify-content:center; gap:40px; flex-wrap:wrap;}
  .branch::before{
    content:''; position:absolute; top:0; left:50%; width:1px; height:14px;
    background:var(--line); transform:translateX(-50%);
  }
  .branch::after{
    content:''; position:absolute; top:14px; left:20%; right:20%; height:1px; background:var(--line);
  }
  .branch > .org-node{position:relative; padding-top:14px;}
  .branch > .org-node::before{
    content:''; position:absolute; top:0; left:50%; width:1px; height:14px;
    background:var(--line); transform:translateX(-50%);
  }

  .note{
    margin-top:44px; padding:16px 18px; border:1px dashed var(--brass);
    font-size:0.82rem; color:var(--ink-soft); background:rgba(176,138,78,0.06);
  }