/* JKK Korea — shared styles. Design system: shadcn/ui tokens (zinc). */
:root{
  --background:#ffffff;
  --foreground:#09090b;
  --muted:#f4f4f5;
  --muted-foreground:#71717a;
  --border:#e4e4e7;
  --input:#e4e4e7;
  --primary:#18181b;
  --primary-foreground:#fafafa;
  --accent:#1F497D;
  --ring:#a1a1aa;
  --radius:0.5rem;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter','Noto Sans KR',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Apple SD Gothic Neo",sans-serif;background:var(--background);color:var(--foreground);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:"cv02","cv03","cv04","cv11"}
::selection{background:var(--foreground);color:var(--background)}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* reveal (JS-guarded) */
.reveal{transition:opacity .5s cubic-bezier(.21,.47,.32,.98),transform .5s cubic-bezier(.21,.47,.32,.98)}
.js .reveal{opacity:0;transform:translateY(10px)}
.js .reveal.in{opacity:1;transform:none}

/* nav */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.8);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:60px;gap:18px}
.brand{display:flex;align-items:center;font-size:16px;letter-spacing:-.02em}
.brand b{font-weight:700}
.brand span{color:var(--muted-foreground);font-weight:450}
.mark{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;background:var(--foreground);margin-right:10px;flex:0 0 auto}
.mark svg{width:18px;height:18px;display:block}
.navlinks{display:flex;gap:26px;font-size:14px;color:var(--muted-foreground);margin-left:auto}
.navlinks a{transition:color .15s}
.navlinks a:hover{color:var(--foreground)}
.lang{font-size:13px;color:var(--muted-foreground);border:1px solid var(--border);border-radius:7px;padding:5px 10px;font-weight:500;transition:background .15s,color .15s}
.lang:hover{background:var(--muted);color:var(--foreground)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap;font-family:inherit;font-size:14px;font-weight:500;height:40px;padding:0 20px;border-radius:calc(var(--radius) + 2px);border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.btn:focus-visible{outline:2px solid var(--ring);outline-offset:2px}
.btn.sm{height:34px;padding:0 14px;font-size:13px}
.btn.lg{height:44px;padding:0 24px;font-size:14.5px}
.btn.primary{background:var(--primary);color:var(--primary-foreground)}
.btn.primary:hover{background:#27272a}
.btn.outline{background:var(--background);border-color:var(--input);color:var(--foreground)}
.btn.outline:hover{background:var(--muted)}
.btn.white{background:#fafafa;color:#18181b}
.btn.white:hover{background:#e4e4e7}

/* hero */
.hero{position:relative;padding:104px 0 48px;text-align:center}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(var(--border) 1px,transparent 1px);background-size:22px 22px;-webkit-mask-image:radial-gradient(ellipse 62% 56% at 50% 38%,#000 38%,transparent 78%);mask-image:radial-gradient(ellipse 62% 56% at 50% 38%,#000 38%,transparent 78%);pointer-events:none}
.hero .inner{position:relative}
.hero h1{font-size:clamp(38px,5.8vw,64px);line-height:1.06;letter-spacing:-.045em;font-weight:600;margin:0 auto;max-width:840px}
:lang(ko) .hero h1{letter-spacing:-.03em;line-height:1.16}
.hero .lead{font-size:18px;color:var(--muted-foreground);margin:24px auto 0;max-width:580px}
.btnrow{margin-top:34px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* product frame + floating cards */
.product{padding:48px 0 96px}
.frame-wrap{position:relative;max-width:960px;margin:0 auto}
.frame{background:var(--background);border:1px solid var(--border);border-radius:14px;box-shadow:0 1px 2px rgba(0,0,0,.04),0 24px 48px -24px rgba(0,0,0,.12);overflow:hidden}
.chrome{display:flex;align-items:center;gap:8px;height:44px;padding:0 16px;border-bottom:1px solid var(--border);background:#fafafa}
.chrome .dots{display:flex;gap:6px}
.chrome .dots span{width:10px;height:10px;border-radius:999px;background:var(--border)}
.chrome .url{margin:0 auto;font-size:12px;color:var(--muted-foreground);background:var(--muted);border:1px solid var(--border);border-radius:7px;padding:4px 14px;font-weight:500}
.app{display:grid;grid-template-columns:310px 1fr}
.list{border-right:1px solid var(--border);padding:18px}
.list .lt{font-size:11.5px;font-weight:600;color:var(--muted-foreground);text-transform:uppercase;letter-spacing:.05em;padding:0 6px;margin-bottom:10px}
.row{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:10px;border:1px solid transparent}
.row.sel{border-color:var(--border);background:#fafafa}
.row .av{width:34px;height:34px;border-radius:999px;background:var(--muted);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;color:#52525b;flex:0 0 auto}
.row .n{font-size:13.5px;font-weight:600;letter-spacing:-.01em}
.row .s{font-size:12px;color:var(--muted-foreground)}
.row .sc{margin-left:auto;font-size:13.5px;font-weight:600;font-variant-numeric:tabular-nums}
.detail{padding:24px 28px 26px}
.detail .dt{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:8px}
.detail .dt h4{font-size:15.5px;font-weight:600;letter-spacing:-.01em}
.detail .dt .sub{font-size:12.5px;color:var(--muted-foreground)}
.fit{display:flex;align-items:baseline;gap:6px;margin-top:14px}
.fit .v{font-size:40px;font-weight:600;letter-spacing:-.04em;font-variant-numeric:tabular-nums;line-height:1}
.fit .u{font-size:13px;color:var(--muted-foreground);font-weight:500}
.bars{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.bar .l{display:flex;justify-content:space-between;font-size:13px;font-weight:500;margin-bottom:6px}
.bar .l span:last-child{font-variant-numeric:tabular-nums;font-weight:600}
.bar .track{height:6px;border-radius:999px;background:var(--muted);overflow:hidden}
.bar .fill{height:100%;border-radius:999px;background:var(--accent)}
.chartbox{margin-top:20px;border:1px solid var(--border);border-radius:10px;padding:14px 16px 10px;background:#fcfcfd}
.chartbox .cl{display:flex;justify-content:space-between;font-size:12px;color:var(--muted-foreground);font-weight:500;margin-bottom:8px}
.chartbox svg{width:100%;height:72px;display:block}
.chips{display:flex;gap:8px;margin-top:18px;flex-wrap:wrap}
.chip{font-size:12px;font-weight:500;color:var(--muted-foreground);background:var(--muted);border:1px solid var(--border);padding:4px 10px;border-radius:7px}
/* stats strip */
.stats{border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stats .grid{display:grid;grid-template-columns:repeat(3,1fr);padding:52px 0}
.stat{padding:0 36px}
.stat + .stat{border-left:1px solid var(--border)}
.stat .n{font-size:38px;font-weight:600;letter-spacing:-.035em;font-variant-numeric:tabular-nums;line-height:1.1}
.stat .c{font-size:14px;color:var(--muted-foreground);margin-top:8px}

/* sections */
section.block{padding:96px 0}
.eyebrow{font-size:13.5px;font-weight:600;color:var(--muted-foreground)}
.h2{font-size:clamp(28px,3.4vw,40px);font-weight:600;letter-spacing:-.035em;line-height:1.14;margin-top:14px;max-width:680px}
:lang(ko) .h2{letter-spacing:-.02em;line-height:1.3}
.sub2{font-size:16.5px;color:var(--muted-foreground);margin-top:16px;max-width:600px}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:48px}
.card{border:1px solid var(--border);border-radius:12px;padding:28px 26px;background:var(--background);transition:border-color .2s,box-shadow .2s}
.card:hover{border-color:#d4d4d8;box-shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px -12px rgba(0,0,0,.08)}
.card .ic{width:38px;height:38px;border-radius:9px;border:1px solid var(--border);background:#fafafa;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.card .ic svg{width:18px;height:18px;stroke:var(--foreground);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:16px;font-weight:600;letter-spacing:-.01em;margin-bottom:8px}
.card p{font-size:14px;color:var(--muted-foreground)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:48px}
.step{border-top:1px solid var(--border);padding-top:22px}
.step .num{font-size:13px;font-weight:600;color:var(--muted-foreground);font-variant-numeric:tabular-nums}
.step h4{font-size:16px;font-weight:600;letter-spacing:-.01em;margin-top:12px}
.step p{font-size:14px;color:var(--muted-foreground);margin-top:7px}

/* dark data section */
.data{background:#09090b;color:#fafafa;padding:96px 0}
.data .eyebrow{color:#a1a1aa}
.data .h2{color:#fafafa}
.data .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;margin-top:48px;align-items:start}
.cmp{border:1px solid #27272a;border-radius:14px;padding:28px}
.cmp .ct{font-size:13.5px;font-weight:600;color:#fafafa;margin-bottom:20px}
.cmp .crow{margin-bottom:16px}
.cmp .cl{display:flex;justify-content:space-between;font-size:13px;color:#a1a1aa;font-weight:500;margin-bottom:6px}
.cmp .cl span:last-child{color:#fafafa;font-weight:600;font-variant-numeric:tabular-nums}
.cmp .track{height:8px;border-radius:999px;background:#1c1c1f;overflow:hidden}
.cmp .fill{height:100%;border-radius:999px;background:#fafafa}
.cmp .fill.dim{background:#3f3f46}
.cmp .src{font-size:12px;color:#52525b;margin-top:18px}
.tiles{display:flex;flex-direction:column;gap:14px}
.tile{border:1px solid #27272a;border-radius:12px;padding:20px 22px}
.tile .n{font-size:26px;font-weight:600;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.tile .c{font-size:13.5px;color:#a1a1aa;margin-top:4px}

/* slim CTA card */
.ctacard{border:1px solid var(--border);border-radius:16px;background:#fafafa;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.ctacard h3{font-size:22px;font-weight:600;letter-spacing:-.02em}
.ctacard p{font-size:14.5px;color:var(--muted-foreground);margin-top:6px;max-width:480px}

/* footer */
footer{border-top:1px solid var(--border);margin-top:96px}
.fgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding:56px 0 44px}
.fbrand p{margin-top:14px;font-size:14px;color:var(--muted-foreground);max-width:300px}
.fcol h5{font-size:13px;font-weight:600;margin-bottom:14px}
.fcol a,.fcol div{display:block;font-size:14px;color:var(--muted-foreground);margin-bottom:10px}
.fcol a:hover{color:var(--foreground)}
.fbar{border-top:1px solid var(--border);padding:18px 0;display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted-foreground);flex-wrap:wrap;gap:10px}
.fbar .langs a{color:var(--muted-foreground)}
.fbar .langs a:hover{color:var(--foreground)}
.fbar .langs span{margin:0 6px;color:var(--border)}

/* contact page */
.page{padding-top:84px}
.page h1{font-size:clamp(32px,4.4vw,46px);font-weight:600;letter-spacing:-.04em}
:lang(ko) .page h1{letter-spacing:-.02em}
.page .lead{font-size:16.5px;color:var(--muted-foreground);margin-top:14px;max-width:560px}
.cgrid{display:grid;grid-template-columns:1fr 320px;gap:48px;margin-top:48px}
.formcard{border:1px solid var(--border);border-radius:14px;padding:34px;background:#fff}
.field{margin-bottom:20px}
.field label{display:block;font-size:13.5px;font-weight:500;margin-bottom:7px}
.field .req{color:var(--accent)}
.input,textarea.input{width:100%;height:40px;border:1px solid var(--input);border-radius:8px;padding:0 12px;font:inherit;font-size:14px;background:#fff;color:var(--foreground);transition:border-color .15s,box-shadow .15s}
textarea.input{height:auto;min-height:140px;padding:10px 12px;resize:vertical}
.input:focus{outline:none;border-color:var(--ring);box-shadow:0 0 0 3px rgba(161,161,170,.18)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.success{display:none;border:1px solid #bbe3c5;background:#f0faf2;color:#166534;font-size:14px;border-radius:10px;padding:13px 16px;margin-bottom:22px}
.success.show{display:block}
.aside .acard{border:1px solid var(--border);border-radius:12px;padding:22px;margin-bottom:14px}
.aside .acard h5{font-size:13px;font-weight:600;color:var(--muted-foreground);margin-bottom:6px}
.aside .acard div{font-size:14.5px;font-weight:500}

@media(max-width:860px){
  .navlinks{display:none}
  .hero{padding:72px 0 36px}
  .app{grid-template-columns:1fr}
  .list{border-right:0;border-bottom:1px solid var(--border)}
  .stats .grid{grid-template-columns:1fr;padding:8px 0}
  .stat{padding:24px 8px}
  .stat + .stat{border-left:0;border-top:1px solid var(--border)}
  .cards,.steps{grid-template-columns:1fr}
  section.block{padding:64px 0}
  .data{padding:64px 0}
  .data .grid{grid-template-columns:1fr;gap:24px}
  .ctacard{padding:30px}
  .fgrid{grid-template-columns:1fr;gap:28px;padding:44px 0 32px}
  .cgrid{grid-template-columns:1fr}
  .two{grid-template-columns:1fr}
  footer{margin-top:64px}
}