@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;700&display=swap");

/* ============ tokens ============ */
:root{
  --brand:#0f1757; --brand2:#26327e; --accent:#f5a623; --accent-ink:#3a2a00;
  --bg:#fafbfe; --surface:#ffffff; --soft:#f2f5fc; --soft2:#e9eef9;
  --ink:#131735; --body:#3b4160; --mut:#6b7392; --line:#e2e7f4;
  --head:var(--brand); --link:var(--brand2);
  --chip-bg:#eef2fc; --chip-ink:#3d4778;
  --code-bg:#eef1fa; --code-ink:#26327e;
  --shadow:0 1px 2px rgba(15,23,87,.04),0 10px 30px rgba(15,23,87,.07);
  --r:14px; --max:1180px; --read:720px;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0a0d1e; --surface:#12162e; --soft:#161b36; --soft2:#1d2444;
    --ink:#eceffb; --body:#c3c9e2; --mut:#8f97b8; --line:#252b4d;
    --head:#c3cbf7; --link:#a9b4f2;
    --chip-bg:#1d2444; --chip-ink:#b3bcea;
    --code-bg:#1c2242; --code-ink:#b9c2f5;
    --shadow:0 1px 2px rgba(0,0,0,.35),0 10px 30px rgba(0,0,0,.3);
  }
}
:root[data-theme="dark"]{
  --bg:#0a0d1e; --surface:#12162e; --soft:#161b36; --soft2:#1d2444;
  --ink:#eceffb; --body:#c3c9e2; --mut:#8f97b8; --line:#252b4d;
  --head:#c3cbf7; --link:#a9b4f2;
  --chip-bg:#1d2444; --chip-ink:#b3bcea;
  --code-bg:#1c2242; --code-ink:#b9c2f5;
  --shadow:0 1px 2px rgba(0,0,0,.35),0 10px 30px rgba(0,0,0,.3);
}

*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:84px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Pretendard","Pretendard Variable",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  font-size:16px;line-height:1.72;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
html[lang="en"] body,html[lang="es"] body{font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
html[lang="ja"] body{font-family:"Noto Sans JP","Pretendard",-apple-system,"Segoe UI",Roboto,sans-serif;word-break:normal;line-break:strict}
html[lang="ko"] body{letter-spacing:-.003em;word-break:keep-all}
a{color:var(--link);text-decoration:none;transition:color .15s}
a:hover{color:var(--accent)}
img,svg{max-width:100%;height:auto}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:5px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ header ============ */
header.site{
  position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--bg) 85%,transparent);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--head);font-size:19px;letter-spacing:-.02em}
.brand:hover{color:var(--head)}
.brand .dot{width:30px;height:30px;flex:none;background:url("/assets/logo.svg") center/contain no-repeat;border-radius:8px}
.nav .links{display:flex;gap:4px;margin-left:8px}
.nav .links a{
  color:var(--body);font-weight:600;font-size:14.5px;padding:8px 12px;border-radius:9px;transition:.15s;
}
.nav .links a:hover{color:var(--head);background:var(--soft)}
.nav .links a[aria-current="page"]{color:var(--head);background:var(--soft2)}
.nav .spacer{flex:1}
.navtools{display:flex;align-items:center;gap:8px}
.langsw{display:flex;gap:2px;align-items:center;font-size:12.5px;background:var(--soft);padding:3px;border-radius:999px;border:1px solid var(--line)}
.langsw a{color:var(--mut);padding:5px 10px;border-radius:999px;font-weight:600}
.langsw a:hover{color:var(--head)}
.langsw a.on{background:var(--brand);color:#fff}
:root[data-theme="dark"] .langsw a.on,
:root:not([data-theme="light"]) .langsw a.on{color:#fff}
.iconbtn{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border:1px solid var(--line);background:var(--surface);border-radius:10px;color:var(--body);
  cursor:pointer;font-size:15px;line-height:1;padding:0;transition:.15s;
}
.iconbtn:hover{background:var(--soft);color:var(--head)}
.menbtn{display:none}
/* mobile drawer */
.drawer{
  position:fixed;inset:64px 0 0;background:var(--bg);z-index:55;
  padding:20px;display:none;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.open{display:flex}
.drawer a{
  display:flex;align-items:center;min-height:52px;padding:0 16px;border-radius:12px;
  font-size:17px;font-weight:600;color:var(--ink);border:1px solid transparent;
}
.drawer a:hover,.drawer a[aria-current="page"]{background:var(--soft);border-color:var(--line)}
.drawer .dsep{margin:14px 0 6px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);font-weight:700}
.drawer .dlang{display:flex;flex-wrap:wrap;gap:8px}
.drawer .dlang a{min-height:44px;padding:0 16px;border:1px solid var(--line);font-size:15px}
body.locked{overflow:hidden}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;color:#fff;padding:76px 0 82px;
  background:
    radial-gradient(900px 380px at 12% -20%,#3341a0 0,transparent 62%),
    radial-gradient(700px 340px at 92% 8%,#1a2470 0,transparent 60%),
    linear-gradient(158deg,#0f1757 0,#1b2568 100%);
}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.hero h1{font-size:clamp(29px,4.6vw,46px);line-height:1.24;margin:0 0 18px;font-weight:800;letter-spacing:-.025em;text-wrap:balance;max-width:19ch}
.hero h1 .hl{color:var(--accent)}
.hero p.sub{font-size:clamp(15.5px,1.9vw,18px);line-height:1.75;color:#c9d1f0;max-width:60ch;margin:0 0 28px}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.badge{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#e8edff;padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600}
.herobtns{display:flex;flex-wrap:wrap;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;
  background:var(--accent);color:var(--accent-ink);font-weight:800;padding:0 26px;border-radius:12px;font-size:16px;
  box-shadow:0 8px 20px rgba(245,166,35,.26);transition:transform .15s,box-shadow .15s;
}
.btn:hover{color:var(--accent-ink);transform:translateY(-2px);box-shadow:0 12px 26px rgba(245,166,35,.34)}
.btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);box-shadow:none}
.btn.ghost:hover{color:#fff;background:rgba(255,255,255,.08);border-color:#fff}
.btn.small{min-height:44px;font-size:14.5px;padding:0 20px}

/* ============ sections ============ */
section.blk{padding:64px 0}
section.blk.soft{background:var(--soft)}
.sechead{display:flex;flex-direction:column;gap:10px;margin-bottom:28px;max-width:70ch}
h2.sec{font-size:clamp(22px,2.9vw,29px);font-weight:800;color:var(--head);margin:0;letter-spacing:-.022em;text-wrap:balance}
p.lead{color:var(--mut);font-size:16.5px;line-height:1.75;margin:0}
.kicker{font-size:11px;font-weight:800;color:var(--accent);text-transform:uppercase;letter-spacing:.1em}

/* ---- bento guide grid ---- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;
  display:flex;flex-direction:column;gap:9px;transition:transform .18s,box-shadow .18s,border-color .18s;
}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:color-mix(in srgb,var(--brand2) 28%,var(--line))}
.card h3{margin:0;font-size:17px;color:var(--ink);font-weight:700;line-height:1.42;letter-spacing:-.012em;text-wrap:balance}
.card:hover h3{color:var(--head)}
.card p{margin:0;color:var(--mut);font-size:14px;line-height:1.65}
.card.feature{grid-column:span 2;padding:28px;gap:12px}
.card.feature h3{font-size:22px;line-height:1.32}
.card.feature p{font-size:15.5px}
.card .taglist{margin-top:auto;padding-top:6px}

/* ---- chips ---- */
.chip{
  display:inline-flex;align-items:center;gap:6px;background:var(--chip-bg);color:var(--chip-ink);
  border-radius:999px;padding:4px 11px;font-size:12px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.chip.cat{background:transparent;border:1px solid var(--line);color:var(--mut)}
a.chip:hover{background:var(--accent);color:var(--accent-ink)}
.taglist{display:flex;flex-wrap:wrap;gap:6px}

/* ---- filter bar ---- */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.fbtn{
  background:var(--surface);border:1px solid var(--line);color:var(--body);
  border-radius:999px;padding:0 15px;min-height:38px;font-size:13.5px;font-weight:600;cursor:pointer;
  font-family:inherit;transition:.15s;display:inline-flex;align-items:center;gap:7px;
}
.fbtn:hover{border-color:var(--brand2);color:var(--head)}
.fbtn[aria-pressed="true"]{background:var(--brand);border-color:var(--brand);color:#fff}
.fbtn .n{font-size:11.5px;opacity:.7;font-variant-numeric:tabular-nums}
.emptymsg{color:var(--mut);font-size:15px;padding:28px 0;display:none}

/* ---- category rail ---- */
.catrail{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:8px}
.catcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;
  display:flex;flex-direction:column;gap:6px;transition:.18s;
}
.catcard:hover{border-color:var(--brand2);transform:translateY(-2px)}
.catcard .n{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11.5px;color:var(--accent);font-weight:700;letter-spacing:.08em}
.catcard h3{margin:0;font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.catcard p{margin:0;font-size:13.5px;color:var(--mut);line-height:1.6}

/* ---- CTA ---- */
.cta{
  position:relative;overflow:hidden;color:#fff;border-radius:20px;padding:48px 40px;text-align:center;
  background:radial-gradient(620px 280px at 100% 0,#33409e 0,transparent 62%),linear-gradient(135deg,#0f1757,#26327e);
}
.cta h2{color:#fff;font-size:clamp(21px,2.6vw,27px);margin:0 0 12px;letter-spacing:-.02em;text-wrap:balance}
.cta p{color:#c9d1f0;margin:0 0 22px;font-size:15.5px}
.eco{display:flex;flex-wrap:wrap;gap:10px}
.eco a{border:1px solid var(--line);border-radius:999px;padding:9px 17px;font-size:14px;color:var(--head);font-weight:600;background:var(--surface)}
.eco a:hover{background:var(--soft);border-color:var(--brand2)}

/* ============ article ============ */
.docwrap{max-width:var(--max);margin:0 auto;padding:36px 20px 24px;display:grid;grid-template-columns:minmax(0,1fr);gap:44px}
@media(min-width:1080px){
  .docwrap{grid-template-columns:minmax(0,1fr) 232px}
}
article.doc{max-width:var(--read);min-width:0;width:100%}
.crumb{font-size:13px;color:var(--mut);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:7px;align-items:center}
.crumb a{color:var(--mut)}
.crumb a:hover{color:var(--head)}
.crumb .sepr{opacity:.45}
article.doc h1{font-size:clamp(27px,3.9vw,38px);line-height:1.26;color:var(--head);margin:0 0 14px;font-weight:800;letter-spacing:-.028em;text-wrap:balance}
.doctax{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:14px}
article.doc .meta{color:var(--mut);font-size:13.5px;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--line)}
article.doc h2{font-size:clamp(19px,2.3vw,23px);color:var(--head);margin:44px 0 14px;font-weight:700;letter-spacing:-.018em;text-wrap:balance;scroll-margin-top:84px}
article.doc h3{font-size:17.5px;margin:28px 0 10px;font-weight:700;color:var(--ink)}
article.doc p{margin:0 0 18px;font-size:17px;line-height:1.85;color:var(--body)}
article.doc ul,article.doc ol{margin:0 0 20px;padding-left:22px}
article.doc li{margin:8px 0;font-size:17px;line-height:1.8;color:var(--body)}
article.doc li::marker{color:var(--accent)}
article.doc b,article.doc strong{color:var(--ink);font-weight:700}
article.doc a{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1.5px;text-decoration-color:color-mix(in srgb,var(--link) 40%,transparent)}
article.doc a:hover{text-decoration-color:var(--accent)}
article.doc .summary{
  background:var(--soft);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:0 12px 12px 0;padding:18px 22px;margin:0 0 30px;font-size:16.5px;line-height:1.78;color:var(--ink);
}
.tablewrap{overflow-x:auto;margin:22px 0;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
article.doc table{border-collapse:collapse;width:100%;font-size:15px;min-width:520px;margin:0}
article.doc th,article.doc td{border-bottom:1px solid var(--line);padding:12px 15px;text-align:left;line-height:1.6}
article.doc tr:last-child td{border-bottom:none}
article.doc th{background:var(--soft2);font-weight:700;color:var(--head);white-space:nowrap}
article.doc code{background:var(--code-bg);color:var(--code-ink);padding:2px 7px;border-radius:6px;font-size:13.5px;font-family:ui-monospace,SFMono-Regular,Consolas,Menlo,monospace}
article.doc pre{background:#0d1329;color:#e7ecff;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:13.5px;line-height:1.7;margin:18px 0}
article.doc pre code{background:none;padding:0;color:inherit}
.toolcta{
  margin:40px 0 0;padding:26px;border:1px solid var(--line);background:var(--soft);
  border-radius:16px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.toolcta p{margin:0;font-weight:700;color:var(--ink)}

/* ---- TOC ---- */
.toc{display:none}
@media(min-width:1080px){
  .toc{display:block;position:sticky;top:88px;align-self:start;max-height:calc(100vh - 120px);overflow-y:auto}
}
.toc .tochead{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);margin-bottom:12px}
.toc ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line)}
.toc li a{
  display:block;padding:6px 0 6px 14px;font-size:13.5px;line-height:1.5;color:var(--mut);
  border-left:2px solid transparent;margin-left:-1px;
}
.toc li a:hover{color:var(--head)}
.toc li a.on{color:var(--head);font-weight:600;border-left-color:var(--accent)}

/* ---- FAQ ---- */
.faq{margin:44px 0 0;border-top:1px solid var(--line);padding-top:32px}
.faq>h2{margin:0 0 14px;scroll-margin-top:84px}
.faq-item{border-top:1px solid var(--line);padding:18px 0}
.faq-item:first-of-type{border-top:none}
.faq-item h3{margin:0 0 7px;font-size:16.5px;line-height:1.5;color:var(--ink)}
.faq-item p{margin:0;color:var(--body);font-size:15.5px;line-height:1.75}
.meta .dates{opacity:.9}
.meta time{white-space:nowrap}

/* ---- home summary list ---- */
.sum{margin:16px 0 10px;padding-left:20px;max-width:70ch;line-height:1.78}
.sum li{margin:8px 0;color:var(--body)}
.fact{max-width:70ch;color:var(--mut);font-size:14.5px;margin:12px 0 0}

/* ---- prev/next ---- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:40px 0 0}
.pager a{
  border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--surface);
  display:flex;flex-direction:column;gap:5px;transition:.15s;
}
.pager a:hover{border-color:var(--brand2)}
.pager .lbl{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--mut);font-weight:700}
.pager .ttl{font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.5}
.pager .nx{text-align:right;align-items:flex-end}

/* ============ footer ============ */
footer.site{background:#0a0e20;color:#a2abcd;padding:52px 0 32px;margin-top:64px;font-size:14px}
footer.site .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
footer.site h4{color:#fff;font-size:12px;margin:0 0 14px;letter-spacing:.1em;text-transform:uppercase;opacity:.8}
footer.site a{color:#a2abcd;display:block;margin:9px 0}
footer.site a:hover{color:#fff}
footer.site p{margin:0;color:#8d96ba;line-height:1.7}
footer.site .fine{border-top:1px solid #1b2140;margin-top:34px;padding-top:20px;color:#6f78a0;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ============ responsive ============ */
@media(max-width:1079px){
  .bento{grid-template-columns:repeat(2,1fr)}
  .card.feature{grid-column:span 2}
  .catrail{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
  .nav .links{display:none}
  .langsw{display:none}
  .menbtn{display:inline-flex}
  .hero{padding:56px 0 62px}
  section.blk{padding:48px 0}
  .cta{padding:36px 22px;border-radius:16px}
  footer.site .cols{grid-template-columns:1fr 1fr;gap:28px}
  .docwrap{padding-top:26px}
}
@media(max-width:600px){
  .bento{grid-template-columns:1fr}
  .card.feature{grid-column:span 1;padding:22px}
  .card.feature h3{font-size:19px}
  .catrail{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager .nx{text-align:left;align-items:flex-start}
  article.doc p,article.doc li{font-size:16.5px}
  article.doc .summary{padding:16px 18px;font-size:16px}
  .herobtns .btn{width:100%}
  footer.site .cols{grid-template-columns:1fr}
}


/* ---- glossary term links ---- */
article.doc a.term{
  text-decoration:none;border-bottom:1px dashed color-mix(in srgb,var(--link) 55%,transparent);
  cursor:help;color:inherit;
}
article.doc a.term:hover{color:var(--link);border-bottom-color:var(--accent)}
.termpop{
  position:absolute;z-index:70;max-width:340px;background:var(--surface);color:var(--body);
  border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow);
  font-size:14.5px;line-height:1.65;
}
.termpop b{display:block;color:var(--head);font-size:13px;margin-bottom:6px;font-weight:700}
.termpop>span{display:block}
.termpop a{font-size:13px;font-weight:600;display:inline-block;margin-top:10px;border-top:1px solid var(--line);padding-top:10px;width:100%}
.termpop[hidden]{display:none!important}

/* ---------------------------------------------------------------- 문의 폼 */
.cform{margin:28px 0 8px;padding:22px 24px;border:1px solid var(--line);
  border-radius:var(--r);background:var(--surface)}
.cform h2{margin-top:0}
.cform>p{color:var(--body);margin:0 0 16px}
.cf-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.cform label{display:block;margin:14px 0 0;font-weight:700;font-size:14px}
.cform input[type=text],.cform input:not([type]),.cform input[type=email],
.cform input[type=url],.cform select,.cform textarea{
  width:100%;box-sizing:border-box;margin-top:6px;padding:11px 13px;
  border:1px solid var(--line);border-radius:10px;background:var(--bg);
  color:var(--ink);font:inherit;font-weight:400;line-height:1.55}
.cform textarea{resize:vertical}
.cform input:focus,.cform select:focus,.cform textarea:focus{
  outline:2px solid var(--brand2);outline-offset:1px;border-color:var(--brand2)}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cform .req{color:#b3283a}
.cf-agree{display:flex!important;align-items:flex-start;gap:9px;margin-top:18px!important;
  font-weight:400!important;font-size:14px;color:var(--body)}
.cf-agree input{margin-top:3px;width:auto!important;flex:none}
.cf-act{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:18px}
.cf-act .btn{width:auto;padding:12px 28px}
.cf-msg{font-size:14px;font-weight:700;color:var(--body)}
.cf-msg.bad{color:#b3283a}
.cf-done{background:#e9f7ef;border:1px solid #bfe5cd;color:#14682f;
  padding:16px 18px;border-radius:10px;font-weight:700;margin:0}
.cf-nojs{color:var(--mut)}
@media (max-width:640px){ .cf-row{grid-template-columns:1fr} }