:root{
  --blue:#2563eb;--blue-dark:#1d4ed8;--blue-soft:#eff4ff;
  --ink:#0f172a;--ink-2:#334155;--muted:#64748b;--muted-2:#94a3b8;
  --line:#e6eaf1;--bg:#f4f6fb;--card:#ffffff;
  --hot:#ef4444;--amber:#f59e0b;--green:#10b981;
  --radius:16px;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.06);
  --shadow-sm:0 1px 2px rgba(15,23,42,.05),0 2px 8px rgba(15,23,42,.04);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Pretendard Variable','Pretendard',-apple-system,BlinkMacSystemFont,'Malgun Gothic',system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1240px;margin:0 auto;padding:0 24px}
.nav-wrap{max-width:none;margin:0 auto;padding:0 28px}
button{font-family:inherit;cursor:pointer}

/* ── Header ── */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;height:72px;gap:20px}
.brand{display:flex;align-items:baseline;gap:10px;font-weight:800;font-size:23px;letter-spacing:-.5px;white-space:nowrap;flex-shrink:0}
.brand .b1{color:var(--blue)}
.brand .by{font-size:13px;font-weight:600;color:var(--muted-2);letter-spacing:0}
.menu{display:flex;align-items:center;gap:2px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.menu::-webkit-scrollbar{display:none}
.menu a{padding:9px 11px;border-radius:10px;font-size:14px;font-weight:600;color:var(--ink-2);transition:.15s;white-space:nowrap;flex-shrink:0}
.menu a:hover{background:var(--blue-soft);color:var(--blue)}
.menu a.active{color:var(--blue)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;flex-shrink:0}
.icon-btn{width:42px;height:42px;border-radius:11px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;position:relative;cursor:pointer;color:var(--ink-2);transition:.15s}
.icon-btn:hover{background:var(--blue-soft);border-color:#d5e0f7;color:var(--blue)}
.badge{position:absolute;top:-6px;right:-6px;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--hot);color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center;border:2px solid #fff}
.profile{display:flex;align-items:center;gap:9px;padding:5px 12px 5px 6px;border:1px solid var(--line);border-radius:999px;cursor:pointer;transition:.15s}
.profile:hover{background:#f8fafc}
.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#60a5fa,#2563eb);display:grid;place-items:center;color:#fff;font-size:13px;font-weight:700}
.pname{font-size:14.5px;font-weight:600}
.caret{color:var(--muted-2);font-size:11px}

/* ── Footer ── */
footer.site{border-top:1px solid var(--line);background:#fff;padding:34px 0}
.foot{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.fbrand{font-weight:800;font-size:18px}
.fbrand .b1{color:var(--blue)}
.fcopy{font-size:12.5px;color:var(--muted-2)}
.flinks{display:flex;gap:18px;font-size:13px;color:var(--ink-2);font-weight:600}
.flinks a:hover{color:var(--blue)}

/* ── Buttons ── */
.btn-primary{background:var(--blue);color:#fff;border:0;border-radius:10px;padding:11px 24px;font-size:15px;font-weight:700;transition:.15s}
.btn-primary:hover{background:var(--blue-dark)}
.btn-outline{background:#fff;color:var(--ink-2);border:1px solid var(--line);border-radius:10px;padding:10px 20px;font-size:14.5px;font-weight:600;transition:.15s}
.btn-outline:hover{border-color:#c7d7fb;color:var(--blue);background:var(--blue-soft)}
.btn-sm{padding:7px 16px;font-size:13.5px}

/* ── Page header (게시판 상단) ── */
.page-header{background:#fff;border-bottom:1px solid var(--line);padding:28px 0 0}
.page-header .wrap{display:flex;flex-direction:column;gap:6px}
.breadcrumb{font-size:13px;color:var(--muted-2);display:flex;align-items:center;gap:6px;margin-bottom:8px}
.breadcrumb a:hover{color:var(--blue)}
.breadcrumb .sep{color:var(--line)}
.board-title-row{display:flex;align-items:center;justify-content:space-between;padding-bottom:0}
.board-title-row h1{display:flex;align-items:center;gap:12px;font-size:26px;font-weight:800;letter-spacing:-.5px}
.board-title-row .ico{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:22px;color:#fff}
.board-desc{font-size:14.5px;color:var(--muted);margin:6px 0 0}
.board-tabs{display:flex;gap:0;margin-top:18px}
.board-tab{padding:11px 20px;font-size:14.5px;font-weight:700;color:var(--muted);border-bottom:2px solid transparent;cursor:pointer;transition:.15s;background:transparent;border-top:0;border-left:0;border-right:0}
.board-tab:hover{color:var(--blue)}
.board-tab.active{color:var(--blue);border-bottom-color:var(--blue)}

/* ── Post list ── */
.post-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);margin-top:24px}
.post-item{display:flex;align-items:center;gap:16px;padding:16px 20px;border-bottom:1px solid #f1f5fb;cursor:pointer;transition:.15s;text-decoration:none;color:inherit}
.post-thumb{width:64px;height:64px;border-radius:10px;object-fit:cover;flex-shrink:0;background:#f1f5fb;border:1px solid var(--line)}
.post-thumb-chip{display:flex;align-items:center;justify-content:center;padding:0}
.post-item:last-child{border-bottom:0}
.post-item:hover{background:#f8fafd}
.post-item.notice{background:#fafcff}
.post-notice-chip{font-size:11px;font-weight:800;color:var(--hot);background:#fff0f0;border:1px solid #fecaca;padding:2px 7px;border-radius:6px;flex-shrink:0}
.post-file-chip{font-size:11px;font-weight:800;padding:2px 7px;border-radius:6px;background:#e0edff;color:var(--blue);flex-shrink:0}
.post-item .pt{flex:1;min-width:0}
.post-item .ptitle{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}
.post-item .pmeta{font-size:12.5px;color:var(--muted-2);display:flex;gap:12px;align-items:center}
.post-item .pstat{display:flex;gap:12px;align-items:center;flex-shrink:0}
.post-item .pstat span{font-size:13px;color:var(--muted-2);display:flex;align-items:center;gap:4px}
.post-item .pstat .cmt{color:var(--blue)}

/* ── Board controls ── */
.board-controls{display:flex;align-items:center;justify-content:space-between;margin-top:20px;gap:12px}
.sort-btns{display:flex;gap:6px}
.sort-btn{padding:8px 16px;border-radius:8px;font-size:13.5px;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--muted);cursor:pointer;transition:.15s}
.sort-btn.active{background:var(--blue-soft);border-color:#c7d7fb;color:var(--blue)}
.total-count{font-size:13.5px;color:var(--muted);font-weight:600}

/* ── Pagination ── */
.pagination{display:flex;gap:6px;justify-content:center;margin:28px 0}
.pg-btn{width:36px;height:36px;border-radius:9px;display:grid;place-items:center;font-size:14px;font-weight:700;border:1px solid var(--line);background:#fff;color:var(--ink-2);transition:.15s}
.pg-btn:hover{background:var(--blue-soft);border-color:#c7d7fb;color:var(--blue)}
.pg-btn.active{background:var(--blue);border-color:var(--blue);color:#fff}

/* ── Post view ── */
.post-view{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-top:24px;overflow:hidden}
.post-view-head{padding:28px 28px 20px;border-bottom:1px solid var(--line)}
.post-board-tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;padding:4px 10px;border-radius:7px;margin-bottom:14px}
.post-view-head h1{font-size:24px;font-weight:800;letter-spacing:-.5px;line-height:1.35;margin-bottom:16px}
.post-meta-row{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.post-meta-row .author{display:flex;align-items:center;gap:8px;font-weight:700;font-size:14.5px}
.post-meta-row .ava{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#60a5fa,#2563eb);display:grid;place-items:center;color:#fff;font-size:11px;font-weight:700}
.post-meta-row .dt{font-size:13px;color:var(--muted-2)}
.post-meta-row .stats{margin-left:auto;display:flex;gap:14px;font-size:13px;color:var(--muted-2)}
.post-body{padding:28px;font-size:15.5px;line-height:1.8;color:var(--ink-2);border-bottom:1px solid var(--line)}
.post-actions{padding:18px 28px;display:flex;gap:10px;align-items:center}
.like-btn{display:flex;align-items:center;gap:8px;padding:10px 22px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14.5px;font-weight:700;color:var(--ink-2);cursor:pointer;transition:.15s}
.like-btn:hover,.like-btn.liked{background:#fff0f0;border-color:#fecaca;color:var(--hot)}
.like-btn svg{transition:.15s}
.post-nav{display:flex;gap:10px;margin-left:auto}

/* ── Comments ── */
.comments{margin-top:24px}
.comments-head{font-size:17px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.comments-head .cnt{font-size:14px;font-weight:700;color:var(--blue);background:var(--blue-soft);padding:3px 10px;border-radius:999px}
.comment-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:10px}
.comment-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.comment-head .ava{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,#94a3b8,#64748b);display:grid;place-items:center;color:#fff;font-size:10px;font-weight:700}
.comment-head .name{font-size:14px;font-weight:700}
.comment-head .dt{font-size:12px;color:var(--muted-2)}
.comment-head .clk-btn{margin-left:auto;background:none;border:none;font-size:13px;color:var(--muted-2);cursor:pointer;display:flex;align-items:center;gap:4px;padding:4px 8px;border-radius:6px;transition:.15s}
.comment-head .clk-btn:hover{background:#f1f5fb;color:var(--hot)}
.comment-body{font-size:14.5px;line-height:1.7;color:var(--ink-2)}
.comment-form{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-top:10px}
.comment-form textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14.5px;font-family:inherit;resize:vertical;min-height:80px;outline:none;color:var(--ink);transition:.15s}
.comment-form textarea:focus{border-color:var(--blue)}
.comment-form-foot{display:flex;justify-content:flex-end;margin-top:10px}

/* ── Write form ── */
.write-wrap{max-width:860px;margin:0 auto;padding:32px 24px 60px}
.write-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-sm)}
.write-card h2{font-size:22px;font-weight:800;margin-bottom:24px;letter-spacing:-.5px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:700;color:var(--ink-2);margin-bottom:7px}
.form-group select,.form-group input,.form-group textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:15px;font-family:inherit;outline:none;color:var(--ink);background:#fff;transition:.15s;
}
.form-group select:focus,.form-group input:focus,.form-group textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.08)}
.form-group textarea{resize:vertical;min-height:300px;line-height:1.7}
.write-foot{display:flex;gap:10px;justify-content:flex-end;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}

/* ── Search ── */
.search-wrap{max-width:860px;margin:0 auto;padding:32px 24px 60px}
.search-bar-big{display:flex;gap:10px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px 8px 8px 16px;box-shadow:var(--shadow-sm);margin-bottom:24px}
.search-bar-big input{border:0;outline:0;flex:1;font-size:16px;background:transparent;font-family:inherit}
.search-result-info{font-size:14.5px;color:var(--muted);margin-bottom:16px;font-weight:600}
.search-result-info strong{color:var(--blue)}
.no-result{text-align:center;padding:60px 0;color:var(--muted);font-size:16px}

/* ── Toast ── */
.gp-toast{position:fixed;bottom:24px;right:24px;background:#1e293b;color:#fff;padding:13px 20px;border-radius:12px;font-size:14.5px;font-weight:600;z-index:9999;opacity:0;transform:translateY(10px);transition:.25s;pointer-events:none}
.gp-toast.show{opacity:1;transform:none}
.gp-toast.gp-toast-error{background:var(--hot)}

/* ── Empty state ── */
.empty-state{text-align:center;padding:60px 20px;color:var(--muted)}
.empty-state .ei{font-size:48px;margin-bottom:14px}
.empty-state p{font-size:16px;margin-bottom:20px}

/* ── Attach zone (write) ── */
.attach-zone{
  border:2px dashed var(--line);border-radius:12px;padding:24px 16px;text-align:center;
  cursor:pointer;transition:.15s;background:#fafbfd;margin-top:6px;
}
.attach-zone.dragover{border-color:var(--blue);background:var(--blue-soft)}
.attach-preview{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.att-item{
  position:relative;border:1px solid var(--line);border-radius:10px;overflow:hidden;
  background:#fff;width:110px;display:flex;flex-direction:column;align-items:center;padding:8px 8px 6px;
  box-shadow:var(--shadow-sm);
}
.att-item img{width:94px;height:70px;object-fit:cover;border-radius:6px;display:block}
.att-file-item{width:130px}
.att-ext{font-size:11px;font-weight:800;color:#fff;background:var(--blue);border-radius:6px;padding:6px 10px;letter-spacing:.5px;margin-bottom:6px}
.att-name{font-size:11px;color:var(--ink-2);text-align:center;width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:5px;font-weight:600}
.att-sz{font-size:10px;color:var(--muted);margin-top:2px}
.att-del{
  position:absolute;top:4px;right:4px;width:18px;height:18px;border-radius:50%;
  border:0;background:rgba(0,0,0,.45);color:#fff;font-size:12px;line-height:1;cursor:pointer;
  display:grid;place-items:center;
}
.att-del:hover{background:var(--hot)}

/* ── Attachments in post view ── */
.post-attachments{border-top:1px solid var(--line);padding:16px 24px 0;margin-top:4px}
.att-imgs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px}
.att-img-view{
  max-width:100%;max-height:420px;border-radius:10px;cursor:pointer;
  border:1px solid var(--line);transition:.2s;object-fit:contain;
}
.att-img-view.att-img-zoom{max-height:none;max-width:100%}
.att-img-view:hover{opacity:.92}
.att-files{display:flex;flex-direction:column;gap:6px;margin-bottom:10px}
.att-file-dl{
  display:flex;align-items:center;gap:10px;padding:10px 14px;border:1px solid var(--line);
  border-radius:10px;background:#fafbfd;text-decoration:none;color:var(--ink-2);transition:.12s;
}
.att-file-dl:hover{background:var(--blue-soft);border-color:#d5e0f7;color:var(--blue)}
.att-ext-sm{font-size:10px;font-weight:800;color:#fff;background:var(--blue);border-radius:5px;padding:3px 7px;flex-shrink:0}
.att-fname{flex:1;font-size:13.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.att-fsize{font-size:11.5px;color:var(--muted);flex-shrink:0}
.att-dl-icon{font-size:13px;flex-shrink:0}
.att-count{font-size:12px;color:var(--muted);text-align:right;margin-top:4px;padding-bottom:16px}

/* ── Responsive ── */
.hamburger-btn{display:none;background:none;border:none;cursor:pointer;padding:8px;color:var(--ink);flex-shrink:0}
.mobile-menu{display:none;flex-direction:column;padding:8px 16px 16px;border-top:1px solid var(--line);background:var(--card)}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:12px 4px;font-size:15px;font-weight:600;color:var(--ink-2);text-decoration:none;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu-divider{height:1px;background:var(--line);margin:6px 0}

@media(max-width:1080px){
  .menu{display:none}
  .nav-right{display:none}
  .hamburger-btn{display:flex;align-items:center;justify-content:center;margin-left:auto}
  .nav{flex-wrap:wrap}
}
@media(max-width:640px){
  .wrap{padding:0 16px}
  .post-view-head{padding:20px 16px 16px}
  .post-body{padding:16px}
  .post-actions{padding:14px 16px}
  .write-card{padding:20px 16px}
  .board-controls{flex-direction:column;align-items:flex-start}
  .post-meta-row .stats{margin-left:0}
  .foot{flex-direction:column;align-items:flex-start}
  .quick-grid{grid-template-columns:repeat(2,1fr)!important}
  .cat-grid{grid-template-columns:1fr!important}
  .board-grid{grid-template-columns:1fr!important}
  .trust-grid{grid-template-columns:1fr!important}
  .post-item{flex-wrap:wrap;row-gap:6px;padding:14px 16px}
  .post-item .pt{order:1;flex:1 1 100%;min-width:0}
  .post-item .ptitle{white-space:normal;overflow:visible;text-overflow:clip;line-height:1.4}
  .post-item .pstat{order:3;margin-left:auto}
  .post-item>*:not(.pt):not(.pstat){order:2}
}