:root{
  --paper:#F2F5F9;
  --card:#FFFFFF;
  --ink:#17273F;
  --ink2:#4C5C74;
  --ink3:#7D8CA1;
  --line:#DBE2EC;
  --line2:#ECF0F6;
  --brand:#2F5A94;
  --brand-d:#1F4070;
  --brand-s:#E8EFF8;
  --river:#4B7FB5;
  --gold:#C77A0A;
  --gold-b:#F09C18;
  --alert:#B23B2B;
  --alert-s:#FAECE9;
  --ok:#2F7A57;
  --r-s:6px;
  --r-m:10px;
  --r-l:16px;
  --shadow:0 1px 2px rgba(23,39,63,.06), 0 8px 24px -12px rgba(23,39,63,.18);
  --wrap:1180px;
  --hd:64px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans KR',-apple-system,BlinkMacSystemFont,'Malgun Gothic',sans-serif;
  font-size:16px;
  line-height:1.65;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"tnum";
}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none;padding:0}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,p{margin:0}
:focus-visible{outline:3px solid var(--river);outline-offset:2px;border-radius:3px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}

.hd{position:sticky;top:0;z-index:60;background:rgba(242,245,249,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;gap:28px;height:var(--hd)}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mk{width:34px;height:34px;flex:none;display:grid;place-items:center}
.logo-t{font-weight:700;font-size:16px;letter-spacing:-.03em;line-height:1.2}
.logo-t small{display:block;font-size:11px;font-weight:400;color:var(--ink3);letter-spacing:0}
.gnb{display:flex;gap:4px;margin-left:8px}
.gnb a{padding:8px 14px;border-radius:var(--r-s);font-size:15px;font-weight:500;color:var(--ink2)}
.gnb a:hover,.gnb a[aria-current="page"]{background:var(--brand-s);color:var(--brand-d)}
.hd-r{margin-left:auto;display:flex;align-items:center;gap:8px}
.btn-ghost{padding:8px 14px;border-radius:var(--r-s);font-size:14px;font-weight:500;color:var(--ink2)}
.btn-ghost:hover{background:var(--line2)}
.btn-login{display:inline-flex;align-items:center;justify-content:center;padding:9px 18px;border-radius:var(--r-s);background:var(--ink);color:#fff;font-size:14px;font-weight:500}
.btn-login:hover{background:var(--brand-d)}
.account{position:relative;display:flex;align-items:center;flex:none}
.hd-r .account-btn{width:42px;height:42px;border-radius:var(--r-s);background:var(--ink);color:#fff;display:grid;place-items:center;box-shadow:none}
.hd-r .account-btn:hover,.hd-r .account-btn[aria-expanded="true"]{background:var(--brand-d)}
.account-menu{position:absolute;right:0;top:calc(100% + 8px);z-index:90;width:132px;background:#fff;border:1px solid var(--line);border-radius:var(--r-s);box-shadow:var(--shadow);padding:6px}
.account-menu[hidden]{display:none!important}
.account-menu button{width:100%;display:block;padding:10px 12px;border-radius:var(--r-s);font-size:14px;font-weight:600;color:var(--ink2);text-align:left;white-space:nowrap}
.account-menu button:hover{background:var(--line2);color:var(--ink)}
.hd-burger{display:none}

.page-hero{padding:44px 0 30px;border-bottom:1px solid var(--line)}
.page-hero .eyebrow{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:-.01em;margin-bottom:7px}
.page-hero h1{font-size:34px;font-weight:700;letter-spacing:-.045em;line-height:1.25}
.page-hero p{margin-top:10px;max-width:40em;color:var(--ink2);font-size:16px}
.sec{padding:40px 0 72px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);box-shadow:var(--shadow)}
.panel-in{padding:30px}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:12px}
.sub{font-size:13.5px;color:var(--ink3)}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:9px 16px;border-radius:var(--r-s);background:var(--brand);color:#fff;font-size:14px;font-weight:600}
.btn:hover{background:var(--brand-d)}
.btn.line{background:#fff;color:var(--ink2);box-shadow:inset 0 0 0 1px var(--line)}
.btn.line:hover{background:var(--line2);color:var(--ink)}

.login-layout{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:22px;align-items:start}
.login-single{max-width:480px;margin:0 auto}
.login-guide{padding:28px}
.login-guide h2{font-size:22px;letter-spacing:-.035em;margin-bottom:10px}
.login-guide p{color:var(--ink2);font-size:15px}
.login-note{margin-top:18px;display:grid;gap:8px;color:var(--ink2);font-size:14px}
.login-note li{position:relative;padding-left:13px}
.login-note li::before{content:"";position:absolute;left:0;top:.75em;width:4px;height:4px;border-radius:50%;background:var(--brand)}

.form{display:grid;gap:15px}
.field{display:grid;gap:7px}
.field label{font-size:14px;font-weight:600;color:var(--ink2)}
.input,.textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-s);background:#fff;padding:11px 12px}
.textarea{min-height:300px;resize:vertical;line-height:1.75}
.check{display:flex;align-items:center;gap:8px;color:var(--ink2);font-size:14px}
.form-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:4px}
.message{min-height:24px;font-size:14px;color:var(--ink3)}
.message.error{color:var(--alert)}
.message.ok{color:var(--ok)}

.notice-head{display:grid;grid-template-columns:70px minmax(0,1fr) 170px 130px 80px;gap:12px;align-items:center;padding:11px 0;border-top:2px solid var(--ink);border-bottom:1px solid var(--line);color:var(--ink2);font-size:13px;font-weight:600;text-align:center}
.notice-head span:nth-child(2){text-align:left}
.notice-list{border-bottom:1px solid var(--line)}
.notice-row{display:grid;grid-template-columns:70px minmax(0,1fr) 170px 130px 80px;gap:12px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line2)}
.notice-row a{font-weight:600;letter-spacing:-.02em}
.notice-row a:hover{color:var(--brand)}
.badge{display:inline-flex;align-items:center;justify-content:center;height:22px;padding:0 8px;border-radius:4px;background:var(--alert-s);color:var(--alert);font-size:12px;font-weight:700}
.notice-kind{color:var(--ink3);font-size:13px}
.notice-row > span:first-child{justify-self:center}
.author,.date,.views{color:var(--ink3);font-size:14px;white-space:nowrap;text-align:center}
.empty{padding:34px 0;text-align:center;color:var(--ink3)}
.board-detail{padding:0;overflow:hidden;border-radius:10px;border-top:3px solid var(--brand-d);box-shadow:0 1px 2px rgba(23,39,63,.04),0 12px 30px -18px rgba(23,39,63,.28)}
.detail-title{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;padding:26px 32px 24px;border-bottom:1px solid var(--line)}
.detail-title h1{font-size:28px;line-height:1.35;letter-spacing:-.045em}
.detail-meta{display:grid;grid-template-columns:1.25fr 1fr .85fr;margin:0;border-bottom:1px solid var(--line);background:#fff}
.detail-meta div{display:grid;grid-template-columns:86px minmax(0,1fr);min-height:44px;border-right:1px solid var(--line)}
.detail-meta div:last-child{border-right:none}
.detail-meta dt,.detail-meta dd{margin:0;display:flex;align-items:center;font-size:14px}
.detail-meta dt{justify-content:center;color:var(--ink2);font-weight:700;background:#F5F7FA}
.detail-meta dd{padding:0 16px;color:var(--ink2)}
.content{min-height:210px;padding:34px 38px;white-space:pre-wrap;line-height:1.85;color:var(--ink2);font-size:16px}
.detail-nav{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.detail-nav div{display:grid;grid-template-columns:96px minmax(0,1fr);min-height:48px;border-bottom:1px solid var(--line2)}
.detail-nav div:last-child{border-bottom:none}
.detail-nav b{display:flex;align-items:center;justify-content:center;background:#F5F7FA;color:var(--ink2);font-size:14px}
.detail-nav a,.detail-nav .empty-link{display:flex;align-items:center;min-width:0;padding:0 18px;font-size:14px}
.detail-nav a{font-weight:600;color:var(--ink)}
.detail-nav a:hover{color:var(--brand)}
.detail-nav .empty-link{color:var(--ink3)}
.detail-actions{display:flex;justify-content:flex-end;padding:18px 32px 24px;background:#fff}

.ft{border-top:1px solid var(--line);background:#E8EDF5;padding:28px 0 92px}
.ft-in{display:flex;gap:24px;justify-content:space-between;align-items:flex-start}
.ft-c{font-size:13px;color:var(--ink2);line-height:1.75}
.ft-c b{display:block;color:var(--ink);font-size:15px;margin-bottom:4px}
.ft-links{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--ink2)}

.tabbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px -20px rgba(23,39,63,.5)}
.tabbar ul{display:grid;grid-template-columns:repeat(5,1fr)}
.tabbar a{height:62px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11.5px;color:var(--ink3)}
.tabbar a[aria-current="page"]{color:var(--brand);font-weight:600}
.tabbar svg{display:block}

@media (max-width:900px){
  .gnb,.hd-r .btn-ghost{display:none}
  .hd-burger{display:grid;place-items:center;width:38px;height:38px;border-radius:var(--r-s);background:#fff;border:1px solid var(--line)}
  .login-layout{grid-template-columns:1fr}
  .login-single{max-width:none}
  .tabbar{display:block}
  .ft{padding-bottom:92px}
}
@media (max-width:720px){
  .hd-in{gap:14px}
  .logo-t{font-size:15px}
  .page-hero{padding:30px 0 22px}
  .page-hero h1,.detail-title h1{font-size:26px}
  .sec{padding:28px 0 64px}
  .panel-in{padding:22px}
  .toolbar{align-items:flex-start;flex-direction:column}
  .notice-head{display:none}
  .notice-row{grid-template-columns:1fr auto;gap:6px 10px;padding:16px 0}
  .notice-row > span:first-child{grid-column:1 / -1;justify-self:start}
  .notice-row .author{display:none}
  .notice-row .date{grid-column:1;justify-self:start;text-align:left}
  .notice-row .views{grid-column:2;justify-self:end}
  .notice-row .views::before{content:"조회 ";color:var(--ink3)}
  .board-detail{border-radius:8px}
  .detail-title{grid-template-columns:1fr;gap:8px;padding:22px}
  .detail-meta{grid-template-columns:1fr}
  .detail-meta div{grid-template-columns:78px minmax(0,1fr);border-right:none;border-bottom:1px solid var(--line)}
  .detail-meta div:last-child{border-bottom:none}
  .content{padding:24px 22px}
  .detail-nav div{grid-template-columns:78px minmax(0,1fr)}
  .detail-nav a,.detail-nav .empty-link{padding:0 12px}
  .detail-actions{padding:18px 22px}
  .ft-in{display:block}
  .ft-links{margin-top:14px}
}