:root{
  --b1:#00A7E1;--b2:#9370DB;--ink:#16202f;--sub:#5b6577;--line:#e6e9f0;--bg:#f5f7fb;--card:#fff;
  --sci:#16a34a;--sse:#f59e0b;--ict:#0ea5e9;--med:#e11d48;--job:#7c3aed;
  --r:18px;--sh:0 6px 24px rgba(22,32,47,.07);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Pretendard Variable",Pretendard,system-ui,-apple-system,"Malgun Gothic",sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:18px;padding:12px 28px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand .logo{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--b1),var(--b2));color:#fff;display:grid;place-items:center;font-weight:900;font-size:20px}
.brand b{display:block;font-size:17px;letter-spacing:-.02em}.brand small{display:block;font-size:11px;color:var(--sub);margin-top:-3px}
.search{flex:1;max-width:460px;margin-left:auto}
.search input{width:100%;padding:10px 16px;border:1px solid var(--line);border-radius:999px;font:inherit;background:#f7f8fb;outline:none}
.search input:focus{border-color:var(--b1);background:#fff}
.topnav{display:flex;gap:4px}.topnav a{padding:8px 14px;border-radius:999px;text-decoration:none;font-weight:600;font-size:14px;color:var(--sub)}
.topnav a:hover,.topnav a.on{background:#eef4ff;color:var(--ink)}
main{max-width:1240px;margin:0 auto;padding:24px 28px 60px}
.foot{text-align:center;color:#8a93a3;font-size:12px;padding:24px}

/* hero */
.hero{position:relative;overflow:hidden;border-radius:28px;padding:40px 44px;color:#fff;background:linear-gradient(120deg,#0b1d3a 0%,#173a7a 45%,#5b3fb0 100%);box-shadow:var(--sh)}
.hero:before{content:"";position:absolute;right:-80px;top:-80px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(0,167,225,.55),transparent 65%)}
.hero:after{content:"";position:absolute;right:160px;bottom:-140px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(147,112,219,.6),transparent 65%)}
.hero h1{margin:0 0 6px;font-size:34px;letter-spacing:-.03em;position:relative}
.hero p{margin:0;opacity:.85;position:relative}
.stats{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:26px}
.stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:16px;padding:12px 14px;cursor:pointer;transition:.2s}
.stat:hover{background:rgba(255,255,255,.18)}
.stat b{font-size:13px;opacity:.9}.stat .n{font-size:22px;font-weight:800}.stat .n small{font-size:13px;opacity:.7;font-weight:600}
.bar{height:6px;border-radius:9px;background:rgba(255,255,255,.18);margin-top:8px;overflow:hidden}.bar i{display:block;height:100%;background:linear-gradient(90deg,#5eead4,#a5b4fc);border-radius:9px}

.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:26px 0 18px}
.tab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;font:inherit;font-weight:600;font-size:14px;cursor:pointer;color:var(--sub)}
.tab.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.tab .c{opacity:.6;margin-left:4px;font-weight:500}
.sec-t{display:flex;align-items:baseline;gap:10px;margin:26px 0 12px}.sec-t h2{margin:0;font-size:20px}.sec-t span{color:var(--sub);font-size:13px}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px}
.card{background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);text-decoration:none;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;border:1px solid transparent}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(22,32,47,.13)}
.card .th{aspect-ratio:16/9;background:#e9edf5;position:relative;overflow:hidden}
.card .th img{width:100%;height:100%;object-fit:cover}
.card .th .cat{position:absolute;right:10px;top:10px}
.card .bd{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;flex:1}
.card h3{margin:0;font-size:17px;letter-spacing:-.02em}
.card .meta{font-size:13px;color:var(--sub)}
.card .row{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto;padding-top:6px}
.card.plan{box-shadow:none;border:1px dashed #cfd5e2;background:#fbfcfe}
.card.plan .th{aspect-ratio:auto;height:74px;display:flex;align-items:center;padding:0 16px;gap:10px}
.card.plan h3{font-size:15px}

.chip{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;background:#eef1f6;color:#3b4557;white-space:nowrap}
.chip.cat{color:#fff}
.cat-sci{background:var(--sci)}.cat-sse{background:var(--sse)}.cat-ict{background:var(--ict)}.cat-med{background:var(--med)}.cat-job{background:var(--job)}
.st-done{background:#dcfce7;color:#166534}.st-part{background:#e0f2fe;color:#075985}.st-plan{background:#f1f5f9;color:#64748b}

/* detail */
.back{display:inline-flex;gap:6px;align-items:center;color:var(--sub);text-decoration:none;font-weight:600;font-size:14px;margin-bottom:12px}
.dh{border-radius:28px;padding:34px 38px;color:#fff;position:relative;overflow:hidden;box-shadow:var(--sh)}
.dh.sci{background:linear-gradient(120deg,#065f46,#16a34a 60%,#84cc16)}
.dh.sse{background:linear-gradient(120deg,#9a3412,#f59e0b 60%,#fde047)}
.dh.ict{background:linear-gradient(120deg,#0c4a6e,#0ea5e9 60%,#67e8f9)}
.dh.med{background:linear-gradient(120deg,#881337,#e11d48 60%,#fb7185)}
.dh.job{background:linear-gradient(120deg,#3b0764,#7c3aed 60%,#c4b5fd)}
.dh:after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.12)}
.dh .id{font-weight:800;opacity:.85;letter-spacing:.04em}
.dh h1{margin:4px 0 6px;font-size:34px;letter-spacing:-.03em}
.dh p{margin:0;opacity:.92;font-size:16px}
.dh .chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px;position:relative;z-index:1}
.dh .chips .chip{background:rgba(255,255,255,.2);color:#fff;font-weight:600}
.note{margin:14px 0 0;padding:12px 16px;border-radius:14px;background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;font-size:14px}
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}
.gal img{border-radius:12px;aspect-ratio:16/9;object-fit:cover;cursor:zoom-in;box-shadow:var(--sh);background:#ddd}
.jump{position:sticky;top:63px;z-index:10;display:flex;gap:6px;flex-wrap:wrap;padding:10px 0;margin:16px 0 4px;background:var(--bg)}
.jump a{font-size:13px;font-weight:700;text-decoration:none;padding:7px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--sub)}
.jump a:hover{color:var(--ink);border-color:#c9d1e0}
.sec{margin-top:26px;scroll-margin-top:120px}
.sec>h2{display:flex;align-items:center;gap:10px;font-size:21px;margin:0 0 12px;letter-spacing:-.02em}
.sec>h2 .num{width:30px;height:30px;border-radius:10px;display:grid;place-items:center;color:#fff;font-size:15px;background:linear-gradient(135deg,var(--b1),var(--b2))}
.cols{display:grid;gap:16px;align-items:start}.c2{grid-template-columns:1fr 1fr}.c3{grid-template-columns:repeat(3,1fr)}
.box{background:#fff;border-radius:var(--r);padding:18px 20px;box-shadow:var(--sh)}
.box h3{margin:0 0 10px;font-size:15px;display:flex;align-items:center;gap:8px}
.box ul,.box ol{margin:0;padding-left:20px}.box li{margin:4px 0}
.box.msg{background:linear-gradient(135deg,#eef9ff,#f3efff);font-size:18px;font-weight:700;letter-spacing:-.01em}
.box.safe{background:#fff1f2}.box.safe h3{color:#be123c}
.box.ment{background:#fffbeb}.box.ment li{list-style:none;margin:8px 0 8px -20px;padding:10px 14px;background:#fff;border-radius:12px;border-left:4px solid #f59e0b}
.check{list-style:none;padding:0!important}
.check li{display:flex;gap:10px;align-items:flex-start;padding:7px 0;border-bottom:1px dashed #eef0f4;cursor:pointer}
.check li:last-child{border:0}
.check input{margin-top:5px;width:17px;height:17px;accent-color:#16a34a;flex:none}
.check li.done span{color:#9aa3b2;text-decoration:line-through}
.when{font-size:12px;font-weight:800;color:#fff;padding:3px 10px;border-radius:999px;background:#334155}
table.tr{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--sh)}
table.tr th,table.tr td{padding:11px 14px;text-align:left;border-bottom:1px solid #eef0f4;font-size:14px;vertical-align:top}
table.tr th{background:#f3f5f9;font-size:13px;color:var(--sub)}
table.tr td:first-child{font-weight:700;width:38%}
.levels td:first-child{width:22%}
.gtabs{display:flex;gap:6px;margin-bottom:10px;flex-wrap:wrap}
.gimg{background:#fff;border-radius:var(--r);padding:12px;box-shadow:var(--sh)}
.gimg img{margin:0 auto;max-height:1100px;cursor:zoom-in;border-radius:8px}
video{width:100%;border-radius:var(--r);background:#000;box-shadow:var(--sh)}
.files{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:10px}
.file{display:flex;align-items:center;gap:12px;background:#fff;border-radius:14px;padding:12px 14px;text-decoration:none;box-shadow:var(--sh);border:1px solid transparent;transition:.15s}
.file:hover{border-color:var(--b1)}
.file .ic{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;font-size:11px;font-weight:900;color:#fff;flex:none}
.ic.pptx{background:#d9480f}.ic.png,.ic.jpg{background:#0ea5e9}.ic.pdf{background:#dc2626}.ic.docx{background:#2563eb}.ic.mp4{background:#7c3aed}.ic.html{background:#16a34a}.ic.zip{background:#64748b}
.file b{display:block;font-size:14px}.file small{color:var(--sub);font-size:12px}
.file .go{margin-left:auto;font-size:12px;font-weight:700;color:var(--b1);white-space:nowrap}
.pills{display:flex;gap:8px;flex-wrap:wrap}.pills span{padding:6px 12px;border-radius:999px;background:#f3efff;color:#5b21b6;font-weight:700;font-size:13px}
.planbox{background:#fff;border-radius:var(--r);padding:24px;box-shadow:var(--sh);margin-top:18px}
.toolbar{display:flex;gap:8px;justify-content:flex-end;margin-top:-4px}
.btn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;font:inherit;font-size:13px;font-weight:700;cursor:pointer;color:var(--sub)}
.btn:hover{color:var(--ink)}
.empty{color:var(--sub);text-align:center;padding:40px}
.lb{position:fixed;inset:0;z-index:50;background:rgba(10,14,22,.88);display:grid;place-items:center;padding:30px}
.lb img{max-width:96vw;max-height:92vh;border-radius:10px}
.lb button{position:absolute;right:20px;top:16px;background:none;border:0;color:#fff;font-size:28px;cursor:pointer}
.lb[hidden]{display:none}
.fade{animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@media (max-width:900px){
  .top{flex-wrap:wrap;padding:10px 16px}.search{order:3;max-width:none;flex-basis:100%}
  main{padding:16px}.hero{padding:26px 22px}.hero h1{font-size:26px}
  .stats{grid-template-columns:repeat(2,1fr)}.c2,.c3{grid-template-columns:1fr}
  .gal{grid-template-columns:repeat(2,1fr)}.dh{padding:24px}.dh h1{font-size:26px}.jump{top:104px}
}
@media print{
  .top,.jump,.toolbar,.foot,.gal,.back,video,.files,.gtabs{display:none!important}
  body{background:#fff}.box,.gimg,table.tr{box-shadow:none;border:1px solid #ddd}
  .dh{color:#000;background:none!important;border:2px solid #333}.dh .chips .chip{color:#000;border:1px solid #999}
  .sec{break-inside:avoid}
}