/* ============================================================
   W78 — main.css
   Direction: B2 Clean (no slop trio: no beige/orange/italic/serif-display)
   Used by: index.html, terms.html, privacy.html (KO + EN)
   ============================================================ */

:root{
  --ink:#0F1419;
  --ink-2:#2A3138;
  --paper:#FFFFFF;
  --paper-soft:#F5F7F9;
  --paper-deep:#EBF0F4;
  --rule:#DDE3EA;
  --rule-strong:#C5CFD8;
  --muted:#6B7480;
  --accent:#0E6253;
  --accent-deep:#0A4A3E;
  --accent-soft:#D6E9E3;
  --navy:#1F3D6B;
  --navy-deep:#0F2447;
  --sage:#9DB39C;
  --sage-soft:#E5EDDF;
  --sans:'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", Roboto, sans-serif;
  --mono:'SF Mono', Menlo, Consolas, "Liberation Mono", monospace;
  --max:1200px;
  --max-narrow:740px;
}

*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
html{scroll-behavior:smooth}
body{font-size:16px;line-height:1.65;font-feature-settings:'ss01','tnum';word-break:keep-all;overflow-wrap:anywhere}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.025em;line-height:1.15;text-wrap:balance}
p{margin:0;text-wrap:pretty}

.container{max-width:var(--max);margin:0 auto;padding:0 28px}
.container-narrow{max-width:var(--max-narrow);margin:0 auto;padding:0 28px}
@media(max-width:680px){
  .container, .container-narrow{padding:0 22px}
}

/* Skip link for a11y */
.skip{position:absolute;left:-9999px;top:8px;background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* ============================================================
   Topbar
   ============================================================ */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--rule)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-0.01em;text-decoration:none;color:inherit}
.logo-mark{width:30px;height:30px;border-radius:8px;background:var(--ink);display:grid;place-items:center;color:var(--paper);font-size:13px;font-weight:900;letter-spacing:0}
.lang{display:flex;gap:2px;font-size:13px;font-weight:600}
.lang a{padding:8px 14px;border-radius:999px;text-decoration:none;color:var(--muted);transition:background .15s ease, color .15s ease}
.lang a:hover{color:var(--ink)}
.lang a[aria-current="true"]{color:var(--ink);background:var(--paper-deep)}

/* ============================================================
   Hero (landing only)
   ============================================================ */
.hero{padding:128px 0 104px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-220px;right:-160px;width:560px;height:560px;border-radius:50%;background:radial-gradient(closest-side,#D6E9E3 0%,rgba(214,233,227,0) 70%);pointer-events:none;z-index:0}
.hero::after{content:"";position:absolute;bottom:-220px;left:-220px;width:520px;height:520px;border-radius:50%;background:radial-gradient(closest-side,#DCE5EE 0%,rgba(220,229,238,0) 70%);pointer-events:none;z-index:0}
.hero .inner{position:relative;z-index:1}

.eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 14px;border-radius:999px;background:var(--paper);border:1px solid var(--rule);font-size:12.5px;font-weight:600;color:var(--accent-deep);letter-spacing:0.02em}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}

.hero h1{margin-top:32px;font-size:clamp(42px,6.2vw,80px);max-width:920px;font-weight:900}
.hero h1 .underline{position:relative;display:inline-block}
.hero h1 .underline::after{content:"";position:absolute;left:0;right:0;bottom:0.06em;height:0.16em;background:var(--accent-soft);z-index:-1;border-radius:2px}

.lede{margin-top:32px;max-width:580px;font-size:19px;color:var(--ink-2);line-height:1.7}

.cta{margin-top:44px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;font-weight:600;font-size:14.5px;text-decoration:none;transition:transform .15s ease, background .2s ease, border-color .2s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent-deep)}
.btn-ghost{background:var(--paper);color:var(--ink);border:1px solid var(--rule-strong)}
.btn-ghost:hover{border-color:var(--ink)}
.btn .arr{transition:transform .2s ease}
.btn:hover .arr{transform:translateX(3px)}

/* Stat strip */
.strip{margin-top:88px;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:28px 0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;z-index:1}
@media(max-width:780px){.strip{grid-template-columns:repeat(2,1fr);gap:24px 12px}}
.strip-item{padding:0 24px;border-right:1px solid var(--rule)}
.strip-item:last-child{border-right:none}
@media(max-width:780px){.strip-item{border-right:none;padding:0 8px}}
.strip-num{font-size:34px;font-weight:900;letter-spacing:-0.025em}
.strip-num .unit{font-size:18px;color:var(--accent);font-weight:700;margin-left:2px}
.strip-lab{margin-top:6px;font-size:13px;color:var(--muted)}

/* ============================================================
   Sections (landing only)
   ============================================================ */
section{padding:128px 0}
.tag{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:0.18em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
.stitle{font-size:clamp(34px,4.6vw,54px);max-width:840px;letter-spacing:-0.025em;font-weight:900}
.slede{margin-top:24px;max-width:680px;font-size:18px;color:var(--ink-2);line-height:1.7}

/* About */
.about{background:var(--paper-soft)}
.about-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:60px}
@media(max-width:900px){.about-cards{grid-template-columns:1fr}}
.acard{background:var(--paper);border-radius:18px;padding:34px;display:flex;flex-direction:column;gap:14px;border:1px solid var(--rule);transition:border-color .2s ease, transform .2s ease}
.acard:hover{border-color:var(--rule-strong);transform:translateY(-2px)}
.acard .num{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;font-weight:900;font-size:14px;color:var(--paper);background:var(--accent)}
.acard:nth-child(2) .num{background:var(--navy)}
.acard:nth-child(3) .num{background:var(--ink)}
.acard h3{font-size:21px;font-weight:800;line-height:1.3}
.acard p{font-size:15px;color:var(--ink-2);line-height:1.7}

/* Products */
.products{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:64px}
@media(max-width:900px){.products{grid-template-columns:1fr}}
.product{border-radius:22px;padding:0;display:flex;flex-direction:column;position:relative;overflow:hidden;border:1px solid var(--rule);background:var(--paper);min-height:520px}
.product .visual{height:240px;display:flex;align-items:flex-end;padding:28px;position:relative;overflow:hidden}
.product.daniel .visual{background:linear-gradient(150deg, var(--navy) 0%, var(--navy-deep) 100%);color:var(--paper)}
.product.daniel .visual::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg, transparent 0 28px, rgba(255,255,255,.045) 28px 29px);pointer-events:none}
.product.cat .visual{background:linear-gradient(150deg, var(--sage-soft) 0%, var(--sage) 100%);color:var(--ink)}
.product.cat .visual::before{content:"";position:absolute;top:-30px;right:-30px;width:200px;height:200px;border-radius:50%;background:radial-gradient(closest-side, rgba(255,255,255,.5) 0%, rgba(255,255,255,0) 70%);pointer-events:none}
.visual-mark{font-size:64px;font-weight:900;letter-spacing:-0.04em;line-height:1;position:relative;z-index:1}
.visual-tag{position:absolute;top:24px;right:24px;font-size:11px;letter-spacing:0.16em;text-transform:uppercase;font-weight:700;opacity:.85;z-index:1}
.product .body{padding:32px 36px 36px;display:flex;flex-direction:column;gap:18px;flex:1}
.product h3{font-size:30px;font-weight:900;letter-spacing:-0.03em}
.product .domain{font-family:var(--mono);font-size:13px;color:var(--muted)}
.product p{font-size:15px;line-height:1.75;color:var(--ink-2);max-width:520px}
.product .pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.pill{background:var(--paper-soft);padding:8px 14px;border-radius:999px;font-size:12.5px;font-weight:600;color:var(--ink-2);border:1px solid var(--rule)}
.pill b{font-weight:800;color:var(--ink);margin-right:5px}
.product .visit{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:999px;background:var(--ink);color:var(--paper);font-size:13.5px;font-weight:600;text-decoration:none;align-self:flex-start;margin-top:auto;transition:background .2s ease}
.product .visit:hover{background:var(--accent-deep)}

/* Contact */
.contact{background:var(--ink);color:var(--paper)}
.contact .stitle{color:var(--paper)}
.contact .slede{color:#B7BFC8}
.contact .tag{color:var(--accent-soft)}
.contact-grid{margin-top:56px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:rgba(255,255,255,.08);border-radius:18px;overflow:hidden}
@media(max-width:780px){.contact-grid{grid-template-columns:1fr}}
.contact-cell{background:var(--ink);padding:32px}
.contact-cell .k{font-size:11.5px;color:#8C9197;letter-spacing:0.14em;text-transform:uppercase;margin-bottom:14px;font-weight:700}
.contact-cell .v{font-size:18px;font-weight:600}
.contact-cell .v a{color:var(--accent-soft);text-decoration:none;border-bottom:1px solid rgba(214,233,227,.4);transition:color .15s ease, border-color .15s ease}
.contact-cell .v a:hover{color:var(--paper);border-color:var(--paper)}

/* ============================================================
   Legal pages (terms, privacy)
   ============================================================ */
.legal-hero{padding:84px 0 56px;border-bottom:1px solid var(--rule);background:var(--paper-soft)}
.legal-hero .meta{font-size:12px;font-weight:700;letter-spacing:0.18em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.legal-hero h1{font-size:clamp(32px,4.4vw,48px);font-weight:900;max-width:840px}
.legal-hero .updated{margin-top:16px;font-size:14px;color:var(--muted)}

.article{padding:80px 0 120px}
.article h2{font-size:22px;margin-top:48px;margin-bottom:14px;font-weight:800;line-height:1.3}
.article h2:first-of-type{margin-top:0}
.article h3{font-size:17px;margin-top:28px;margin-bottom:10px;font-weight:700;color:var(--ink-2)}
.article p{font-size:16px;line-height:1.85;color:var(--ink-2);margin-bottom:14px}
.article ol, .article ul{margin:14px 0 18px;padding-left:22px}
.article ol li, .article ul li{margin-bottom:8px;line-height:1.85;color:var(--ink-2)}
.article strong{color:var(--ink);font-weight:700}
.article a{color:var(--accent-deep);text-decoration:underline;text-underline-offset:3px}
.article a:hover{color:var(--ink)}
.article hr{border:none;border-top:1px solid var(--rule);margin:48px 0}
.article .toc{background:var(--paper-soft);border:1px solid var(--rule);border-radius:14px;padding:24px 28px;margin-bottom:48px}
.article .toc-title{font-size:12px;font-weight:800;letter-spacing:0.14em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.article .toc ol{margin:0;padding-left:18px;column-count:2;column-gap:24px}
@media(max-width:680px){.article .toc ol{column-count:1}}
.article .toc li{margin-bottom:6px;font-size:14px;break-inside:avoid}
.article .toc a{color:var(--ink);text-decoration:none}
.article .toc a:hover{color:var(--accent-deep);text-decoration:underline}
.article .footnote{margin-top:48px;padding-top:24px;border-top:1px solid var(--rule);font-size:14px;color:var(--muted);line-height:1.75}

/* ============================================================
   Footer
   ============================================================ */
footer{background:var(--paper-soft);padding:72px 0 44px;font-size:14px;line-height:1.8;color:var(--ink-2);border-top:1px solid var(--rule)}
footer .container{display:grid;grid-template-columns:1.4fr 3fr;gap:56px}
@media(max-width:900px){footer .container{grid-template-columns:1fr;gap:36px}}
footer .logo{font-size:18px}
footer .biz{display:grid;grid-template-columns:1fr 1fr;gap:8px 28px;margin:0}
@media(max-width:680px){footer .biz{grid-template-columns:1fr}}
footer .biz dt{color:var(--muted);font-size:11.5px;letter-spacing:0.1em;text-transform:uppercase;margin-top:14px;font-weight:700}
footer .biz dd{margin:2px 0 0;color:var(--ink);font-size:14.5px;font-weight:500}
footer .legal{margin-top:44px;padding-top:24px;border-top:1px solid var(--rule);display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted)}
footer .legal a{color:var(--ink);margin-left:24px;text-decoration:none;font-weight:500;border-bottom:1px solid var(--rule-strong);transition:border-color .15s ease}
footer .legal a:hover{border-color:var(--accent)}
@media(max-width:680px){footer .legal{flex-direction:column;align-items:flex-start;gap:14px}footer .legal a{margin-left:0;margin-right:18px}}

/* Print (legal pages should print cleanly) */
@media print{
  .topbar, footer{display:none}
  .legal-hero{padding:24px 0;background:transparent;border-bottom:1px solid #999}
  .article{padding:24px 0}
  body{background:#fff;color:#000}
  .article p, .article ol li, .article ul li{color:#000}
}