/* 활동지천국.com */
:root{
  --ink:#2b2b3a; --ink-soft:#5b5b70; --line:#e6e3f0;
  --bg:#fdfbff; --card:#ffffff; --brand:#7b5cff; --brand-soft:#f0ebff;
  --accent:#ff8fab; --radius:18px; --shadow:0 6px 20px rgba(76,60,140,.08);
  --sheet-w:210mm; --sheet-h:297mm;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:'Gaegu','Pretendard','Noto Sans KR',system-ui,-apple-system,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  font-size:18px; line-height:1.6;
}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(253,251,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header .bar{display:flex;align-items:center;gap:14px;min-height:66px;padding:9px 0;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:25px;letter-spacing:-.5px;white-space:nowrap}
.logo .mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center;color:#fff;font-size:20px}
.nav{margin-left:auto;display:flex;gap:2px;flex-wrap:wrap;justify-content:flex-end;max-width:820px}
.nav a{padding:6px 10px;border-radius:999px;font-size:16px;color:var(--ink-soft);white-space:nowrap}
.nav a:hover,.nav a[aria-current="page"]{background:var(--brand-soft);color:var(--brand)}

/* hero */
.hero{padding:52px 0 34px;text-align:center}
.hero h1{margin:0 0 10px;font-size:clamp(34px,6vw,50px);letter-spacing:-1px}
.hero p{margin:0 auto;max-width:640px;color:var(--ink-soft);font-size:20px}
.hero .badges{margin-top:18px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.badge{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:16px;color:var(--ink-soft);box-shadow:var(--shadow)}

/* grid of categories */
.section-title{display:flex;align-items:baseline;gap:12px;margin:38px 0 16px}
.section-title h2{margin:0;font-size:28px}
.section-title span{color:var(--ink-soft);font-size:17px}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;padding-bottom:10px}
.cat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:transform .15s ease,box-shadow .15s ease;display:block}
.cat-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(76,60,140,.14)}
.cat-card .ico{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;font-size:27px;margin-bottom:12px}
.cat-card h3{margin:0 0 4px;font-size:23px}
.cat-card p{margin:0;color:var(--ink-soft);font-size:16px;line-height:1.45}
.cat-card .count{margin-top:12px;font-size:15px;color:var(--brand)}

/* sheet list */
.sheet-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.sheet-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .15s ease}
.sheet-card:hover{transform:translateY(-3px)}
.sheet-card .thumb{aspect-ratio:1/1.16;background:#fff;border-bottom:1px solid var(--line);display:grid;place-items:center;overflow:hidden;padding:10px}
.sheet-card .thumb svg{width:100%;height:100%}
.sheet-card .body{padding:15px 17px 18px}
.sheet-card h3{margin:0 0 4px;font-size:21px}
.sheet-card p{margin:0;color:var(--ink-soft);font-size:16px;line-height:1.4}
.tag{display:inline-block;margin-top:10px;font-size:14px;background:var(--brand-soft);color:var(--brand);border-radius:999px;padding:3px 10px}

/* breadcrumb */
.crumb{padding:22px 0 0;font-size:16px;color:var(--ink-soft)}
.crumb a:hover{color:var(--brand)}

/* page head */
.page-head{padding:14px 0 22px}
.page-head h1{margin:6px 0 8px;font-size:clamp(28px,5vw,40px);letter-spacing:-.8px}
.page-head p{margin:0;color:var(--ink-soft);max-width:720px}

/* toolbar */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:6px 0 20px}
.btn{font:inherit;font-size:17px;cursor:pointer;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:12px;padding:10px 18px;box-shadow:var(--shadow);display:inline-flex;align-items:center;gap:7px}
.btn:hover{border-color:var(--brand);color:var(--brand)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{filter:brightness(1.07);color:#fff}
.btn[aria-pressed="true"]{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}

/* the printable sheet */
.sheet-stage{background:#efecf6;border-radius:var(--radius);padding:22px;overflow-x:auto;margin-bottom:40px}
.sheet{width:var(--sheet-w);height:var(--sheet-h);margin:0 auto;background:#fff;box-shadow:0 4px 24px rgba(0,0,0,.12);padding:13mm 13mm 10mm;display:flex;flex-direction:column;overflow:hidden}
.sheet-title{text-align:center;margin:0 0 2mm;font-size:30px;letter-spacing:-.5px}
.sheet-sub{text-align:center;margin:0 0 6mm;color:#6b6b80;font-size:16px}
.sheet-body{flex:1;min-height:0;display:flex;flex-direction:column;justify-content:center}
.sheet-foot{margin-top:6mm;padding-top:3mm;border-top:1px dashed #d8d5e4;display:flex;justify-content:space-between;color:#9a97ab;font-size:13px}
.name-row{display:flex;gap:8mm;justify-content:flex-end;margin-bottom:4mm;color:#6b6b80;font-size:15px}
.name-row span{border-bottom:1px solid #c9c6d6;min-width:34mm;display:inline-block}

/* related */
.related{border-top:1px solid var(--line);padding:26px 0 10px}

/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:30px;padding:26px 0 44px;color:var(--ink-soft);font-size:16px;background:#fff}
.site-footer .cols{display:flex;flex-wrap:wrap;gap:26px;justify-content:space-between}
.site-footer a:hover{color:var(--brand)}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 14px;max-width:640px}

/* print */
@media print{
  @page{size:A4;margin:0}
  .site-header,.site-footer,.toolbar,.crumb,.page-head,.related,.sheet-stage-note{display:none!important}
  body{background:#fff;font-size:16px}
  .wrap{padding:0;max-width:none}
  .sheet-stage{background:#fff;padding:0;margin:0;overflow:visible;border-radius:0}
  .sheet{width:210mm;height:297mm;box-shadow:none;margin:0;page-break-after:always;break-after:page}
  .no-print{display:none!important}
}
@media (max-width:860px){
  .site-header .bar{flex-wrap:nowrap;gap:10px}
  .nav{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;max-width:none;
       justify-content:flex-start;mask-image:linear-gradient(to right,#000 88%,transparent);padding-bottom:2px}
  .nav::-webkit-scrollbar{display:none}
  .logo{font-size:21px}
  .logo .mark{width:31px;height:31px;font-size:17px}
}
@media (max-width:520px){
  body{font-size:17px}
  .sheet-stage{padding:10px}
  .hero{padding:36px 0 24px}
  .toolbar .btn{flex:1 1 auto;justify-content:center}
}

/* ===== 활동지 공통 ===== */
.ans{visibility:hidden}
.show-answer .ans{visibility:visible;color:#e5383b}
.show-answer .answer-layer{display:block!important}
.hint{margin:5mm 0 0;text-align:center;color:#6b6b80;font-size:15px}
.sheet-body svg{display:block;margin:0 auto}
.art-fit{flex:1;min-height:0;position:relative}

/* 스도쿠 */
.sd-wrap{display:flex;justify-content:center;margin-top:4mm}
.sd-grid{display:grid;border:3px solid #26262e;border-radius:4px;width:min(162mm,100%);aspect-ratio:1}
.sd-cell{border:1px solid #b9b6c8;display:grid;place-items:center;font-size:26px;font-weight:700;font-family:'Noto Sans KR',sans-serif}
.sd-cell.br{border-right-width:3px;border-right-color:#26262e}
.sd-cell.bb{border-bottom-width:3px;border-bottom-color:#26262e}

/* 미로 */
.maze-wrap{margin-top:4mm}
.maze{width:min(172mm,100%)}

/* 낱말찾기 */
.ws-list{display:flex;flex-wrap:wrap;gap:6px 10px;justify-content:center;margin-bottom:4mm}
.ws-list span{border:2px solid #d8d5e4;border-radius:999px;padding:3px 13px;font-size:17px}
.ws{width:min(166mm,100%)}

/* 문제 그리드 */
.q-grid{display:grid;gap:2.6mm 6mm;margin-top:3mm}
.q-grid.q-3,.q-grid.q-4{gap:5mm 6mm}
.q-grid.q-2{grid-template-columns:repeat(2,1fr)}
.q-grid.cho .q{font-size:18px}
.q-grid.q-3{grid-template-columns:repeat(3,1fr)}
.q-grid.q-4{grid-template-columns:repeat(4,1fr)}
.q{font-size:22px;font-family:'Noto Sans KR',sans-serif;letter-spacing:-.2px}
.q b{color:#8d89a6;font-weight:500;font-size:16px;margin-right:3px}
.q u{display:inline-block;min-width:38px;text-align:center;text-decoration:none;border-bottom:1.8px solid #26262e}

/* 구구단 표 */
.tt-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:4mm;margin-top:3mm}
.tt-col{border:2px solid #e0dcec;border-radius:10px;padding:3mm 2mm}
.tt-col h4{margin:0 0 2mm;text-align:center;font-size:20px;color:#7b5cff}
.tt-col ol{list-style:none;margin:0;padding:0;font-size:17px;font-family:'Noto Sans KR',sans-serif}
.tt-col li{padding:1px 0 1px 6px}
.tt-col u{display:inline-block;min-width:26px;text-decoration:none;border-bottom:1.4px solid #26262e;text-align:center}

/* 초성퀴즈 */
.cho-q{display:flex;gap:7px;align-items:flex-start;border:2px solid #efecf6;border-radius:9px;padding:1.8mm 2.4mm}
/* 점수칸 */
.score-box{margin-top:6mm;display:flex;justify-content:flex-end;align-items:center;gap:4mm;font-size:17px;color:#6b6b80}
.score-box b{border:2px solid #d8d5e4;border-radius:8px;padding:2mm 8mm;font-weight:400}
.cho-q .no{background:#f0ebff;color:#7b5cff;border-radius:50%;width:22px;height:22px;display:grid;place-items:center;font-size:14px;flex:0 0 22px;margin-top:2px}
.q-grid.cho{gap:2.1mm 4mm}
.cho-letters{font-size:21px;font-weight:700;letter-spacing:2px;font-family:'Noto Sans KR',sans-serif;line-height:1.25}
.cho-hint{font-size:13.5px;color:#6b6b80;margin:0 0 1px;line-height:1.3}
.cho-blank{border-bottom:1.6px solid #26262e;min-height:19px;min-width:48mm;font-size:17px}

/* 시계 */
.ck-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:5mm 3mm;margin-top:4mm}
.ck{text-align:center;position:relative}
.ck-no{position:absolute;left:2px;top:0;font-size:14px;color:#8d89a6}
.clock{width:33mm;height:33mm;max-width:100%}
.ck-a{margin-top:1.5mm;font-size:16px;font-family:'Noto Sans KR',sans-serif}
.ck-a u{display:inline-block;min-width:24px;text-decoration:none;border-bottom:1.5px solid #26262e}

/* 빙고 */
.bg-grid{display:grid;gap:0;border:3px solid #26262e;border-radius:6px;overflow:hidden;margin-top:5mm;aspect-ratio:1;width:min(160mm,100%);margin-left:auto;margin-right:auto}
.bg-cell{border:1.4px solid #26262e;display:grid;place-items:center;text-align:center;font-size:19px;padding:2mm;line-height:1.25}
.bg-cell.free{background:#fff6d6;color:#b07c00;font-weight:700}
.bg-note{display:flex;gap:4mm;align-items:center;margin-top:5mm;font-size:15px;color:#6b6b80}
.bg-note span:not(:first-child){flex:1;border-bottom:1.4px solid #c9c6d6;height:20px}

/* 따라쓰기 */
.tr-row{display:grid;grid-template-columns:repeat(14,1fr);gap:1.4mm;margin-bottom:2.2mm}
.tr-box{aspect-ratio:1;border:1.6px dashed #cfcbdd;border-radius:5px;display:grid;place-items:center;font-size:22px;font-family:'Noto Sans KR',sans-serif}
.tr-box .solid{color:#26262e;font-weight:700}
.ghost{color:#c9c6d6}
.tr-line{margin-bottom:1.1mm}
.tr-label{font-size:14px;color:#7b5cff;margin-bottom:.4mm}
.tr-cells{display:flex;align-items:center;gap:1.4mm;flex-wrap:wrap}
.tr-cell{width:10mm;height:10mm;border:1.6px dashed #cfcbdd;border-radius:5px;display:grid;place-items:center;font-size:21px;font-family:'Noto Sans KR',sans-serif}
.tr-cell i{font-style:normal}
.tr-gap{width:3mm}
.tr-sline{margin-bottom:3.4mm}
.tr-sline p{margin:0;font-size:20px;font-family:'Noto Sans KR',sans-serif;border-bottom:1.6px solid #dedaea;padding:1.2mm 1mm}
.tr-sline .blank{min-height:9.5mm}

@media (max-width:600px){
  .q-grid.q-4{grid-template-columns:repeat(2,1fr)}
  .tt-grid{grid-template-columns:repeat(2,1fr)}
}

/* 그림 활동지 */
.thumb-svg{width:100%;height:100%;object-fit:contain}
.art-img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;display:block}
.art-fit>.answer-layer{position:absolute;inset:0;width:100%;height:100%;display:none;pointer-events:none}
.hp-words{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:2mm 2.4mm;margin:0 0 4mm;padding:2.6mm 3mm;border:2px solid #efecf6;border-radius:12px}
.hp-words li{border:1.6px solid #d8d5e4;border-radius:999px;padding:1mm 3.4mm;font-size:17px}
.tr-mean{display:block;font-size:14px;color:#8d89a6;margin-bottom:.4mm}
.tr-prov .tr-sline{margin-bottom:2mm}
.tr-prov .tr-sline p{font-size:19px;padding:.8mm 1mm}
.tr-prov .blank{min-height:7.4mm}