/* Brkit — shared dark theme for legal/document pages (terms, privacy) */
:root{
  --bg:#070b0a; --fg:#ffffff; --mut:rgba(255,255,255,.62);
  --line:rgba(255,255,255,.12); --accent:#3d97ff;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--fg);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Pretendard","Segoe UI",Roboto,sans-serif;
  line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

/* header */
.lnav{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;justify-content:space-between;
  padding:15px clamp(20px,5vw,60px);
  background:rgba(7,11,10,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;color:#fff;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px 1px var(--accent)}
.lnav-right{display:flex;align-items:center;gap:16px}
/* back button — Geist pill style (matches home "Learn more") */
.back-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:34px;padding:0 15px;border-radius:100px;border:none;background:hsla(0,0%,7%,1);color:hsla(0,0%,93%,1);font-family:inherit;font-size:13px;font-weight:500;letter-spacing:-.01em;cursor:pointer;text-decoration:none;box-shadow:0 0 0 1px rgba(255,255,255,.145),0 1px 2px rgba(0,0,0,.16);transition:background .15s,box-shadow .15s,transform .1s}
.back-btn:hover{background:rgba(255,255,255,.09);text-decoration:none}
.back-btn:active{transform:translateY(1px)}
.back-btn svg{width:15px;height:15px;opacity:.85}

/* language switcher — shadcn Select style */
.lang-select{position:relative}
.lang-trigger{display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 9px 0 11px;border-radius:8px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--fg);font-family:inherit;font-size:13px;font-weight:500;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,box-shadow .15s}
.lang-trigger:hover{background:rgba(255,255,255,.06)}
.lang-select[data-open] .lang-trigger{border-color:rgba(255,255,255,.28);box-shadow:0 0 0 3px rgba(61,151,255,.18)}
.lang-trigger .lang-globe{width:15px;height:15px;opacity:.7;flex:none}
.lang-trigger .lang-chevron{width:15px;height:15px;opacity:.55;flex:none;transition:transform .15s}
.lang-select[data-open] .lang-trigger .lang-chevron{transform:rotate(180deg)}
.lang-current{min-width:50px;text-align:left}
.lang-content{position:absolute;top:calc(100% + 6px);right:0;z-index:60;min-width:150px;padding:5px;border-radius:10px;border:1px solid var(--line);background:#0d1210;color:var(--fg);box-shadow:0 12px 34px rgba(0,0,0,.55),0 0 0 1px rgba(255,255,255,.03);animation:langpop .12s ease}
.lang-content[hidden]{display:none}
@keyframes langpop{from{opacity:0;transform:translateY(-4px) scale(.98)}to{opacity:1;transform:none}}
.lang-option{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;padding:8px 10px;border:0;border-radius:6px;background:none;color:rgba(255,255,255,.9);font-family:inherit;font-size:13px;font-weight:500;text-align:left;cursor:pointer;transition:background .12s}
.lang-option:hover{background:rgba(255,255,255,.07)}
.lang-option .lang-check{width:15px;height:15px;color:var(--accent);opacity:0;flex:none}
.lang-option[aria-selected="true"] .lang-check{opacity:1}

/* document body */
.doc{max-width:820px;margin:0 auto;padding:52px 22px 90px}
.doc h1{font-size:1.95rem;margin:0 0 .3em;line-height:1.25;font-weight:800;letter-spacing:-.02em}
.doc h2{font-size:1.32rem;margin:2em 0 .5em;padding-top:.85em;border-top:1px solid var(--line);font-weight:700}
.doc h3{font-size:1.06rem;margin:1.5em 0 .4em;color:#fff;font-weight:600}
.doc p,.doc li{color:rgba(255,255,255,.82)}
.doc .meta{color:var(--mut);font-size:.9rem;margin-bottom:1.4em}
.doc ul,.doc ol{padding-left:1.4em}
.doc li{margin:.3em 0}
.doc code{background:rgba(255,255,255,.08);padding:.1em .4em;border-radius:4px;font-size:.88em;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#c9efdd;word-break:break-all}
.doc blockquote{margin:1.2em 0;padding:.85em 1.1em;background:rgba(61,151,255,.09);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;color:rgba(255,255,255,.9)}
.doc hr{border:none;border-top:1px solid var(--line);margin:2em 0}
.tw{overflow-x:auto;margin:1.1em 0}
.doc table{border-collapse:collapse;width:100%;font-size:.9rem}
.doc th,.doc td{border:1px solid var(--line);padding:8px 11px;text-align:left;vertical-align:top}
.doc th{background:rgba(255,255,255,.05);font-weight:600;color:#fff}

/* language blocks */
[data-lang-block]{display:none}
body[data-lang="en"] [data-lang-block="en"]{display:block}
body[data-lang="ko"] [data-lang-block="ko"]{display:block}

/* footer */
footer.site{border-top:1px solid var(--line);padding:28px clamp(20px,5vw,60px);color:var(--mut);font-size:13px;display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:space-between}
footer.site a{color:var(--mut)}
footer.site a:hover{color:var(--accent)}
.flinks{display:flex;gap:20px;flex-wrap:wrap}