:root {
  --bg: #0f1014;
  --bg2: #15161c;
  --panel: #191a21;
  --line: #262832;
  --line2: #31343f;
  --text: #e6e7ec;
  --muted: #8d90a0;
  --dim: #646778;
  --accent: #8fb4ff;
  --accent-ink: #0d1424;
  --ok: #7fd49a;
  --warn: #f2c26b;
  --mono: ui-monospace, "JetBrains Mono", "Cascadia Code", Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html[lang="ko"] [data-lang="en"], html[lang="en"] [data-lang="ko"] { display: none !important; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15.5px/1.7 "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, -apple-system, "Segoe UI", sans-serif;
  word-break: keep-all; overflow-wrap: anywhere;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, kbd { font-family: var(--mono); font-size: .88em; background: #ffffff0d; border: 1px solid var(--line); padding: .05em .4em; border-radius: 5px; }
h1, h2, h3 { line-height: 1.3; letter-spacing: -.01em; }

/* notice bar */
.notice { background: #2a2312; color: #f5dca2; border-bottom: 1px solid #4a3d1c; font-size: 13.5px; text-align: center; padding: 7px 16px; }
.notice b { color: var(--warn); }

/* nav */
.nav { position: sticky; top: 0; z-index: 20; background: #0f1014ee; backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav-in { max-width: 1120px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 12px 24px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 800; font-size: 17px; letter-spacing: .02em; }
.brand:hover { text-decoration: none; }
.brand img { width: 26px; height: 26px; }
.nav nav { display: flex; gap: 22px; align-items: center; }
.nav nav a { color: var(--muted); font-size: 14.5px; }
.nav nav a:hover { color: var(--text); text-decoration: none; }
.lang { background: transparent; color: var(--muted); border: 1px solid var(--line2); border-radius: 6px; padding: 3px 10px; cursor: pointer; font: inherit; font-size: 13px; }
.lang:hover { color: var(--text); border-color: var(--muted); }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* hero */
.hero { padding: 72px 0 56px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(34px, 5vw, 50px); margin: 0 0 16px; font-weight: 800; }
.hero h1 .wm { color: var(--accent); }
.hero p.lead { color: #c3c5d0; font-size: 17px; margin: 0 0 28px; max-width: 560px; }
.cta { display: flex; gap: 10px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 8px; border: 1px solid var(--line2); background: var(--panel); color: var(--text); font-weight: 600; font-size: 15px; cursor: pointer; font-family: inherit; }
.btn:hover { text-decoration: none; border-color: var(--muted); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.07); }
.btn.sm { padding: 6px 12px; font-size: 13.5px; }
.term { background: #0a0b0e; border: 1px solid var(--line); border-radius: 10px; font: 13px/1.75 var(--mono); padding: 16px 18px; color: #b9bccb; overflow: hidden; white-space: pre; }
.term .c1 { color: #c9a2ff; } .term .c2 { color: #94b6ff; } .term .c3 { color: #7fdada; } .term .g { color: var(--ok); } .term .d { color: var(--dim); }

/* sections */
.section { padding: 64px 0; border-top: 1px solid var(--line); }
.section > h2 { font-size: 26px; margin: 0 0 6px; }
.section > p.desc { color: var(--muted); margin: 0 0 28px; max-width: 720px; }
.muted { color: var(--muted); } .small { font-size: 13.5px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.features h3 { font-size: 16px; margin: 0 0 6px; }
.features p { color: var(--muted); margin: 0; font-size: 14.5px; }

/* downloads */
.dl { display: grid; grid-template-columns: 220px 1fr; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--panel); min-height: 360px; }
.vlist { border-right: 1px solid var(--line); background: var(--bg2); padding: 8px 0; }
.vlist .grp { font-size: 11.5px; letter-spacing: .06em; color: var(--dim); padding: 12px 18px 4px; }
.vlist button { display: flex; width: 100%; justify-content: space-between; align-items: center; background: none; border: 0; border-left: 2px solid transparent; color: var(--text); font: inherit; font-size: 14.5px; padding: 7px 16px; cursor: pointer; text-align: left; }
.vlist button:hover { background: #ffffff08; }
.vlist button.on { border-left-color: var(--accent); background: #8fb4ff12; color: #fff; font-weight: 600; }
.vlist button.none { color: var(--dim); }
.vlist .b { font-size: 11.5px; color: var(--dim); font-family: var(--mono); }
.vdetail { padding: 26px 28px; min-width: 0; }
.vtitle { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 4px; }
.vtitle h3 { margin: 0; font-size: 24px; }
.chip { font-size: 12px; border: 1px solid var(--line2); border-radius: 99px; padding: 1px 9px; color: var(--muted); }
.chip.ok { color: var(--ok); border-color: #2f5a3d; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 18px 0 20px; font-size: 14px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; font-family: var(--mono); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dlrow { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.copy { background: none; border: 1px solid var(--line2); color: var(--muted); border-radius: 6px; font-size: 12px; padding: 1px 8px; cursor: pointer; margin-left: 6px; font-family: inherit; }
.copy:hover { color: var(--text); }
.builds { width: 100%; border-collapse: collapse; margin-top: 28px; font-size: 14px; }
.builds th { text-align: left; color: var(--dim); font-weight: 500; font-size: 12.5px; padding: 6px 10px; border-bottom: 1px solid var(--line); }
.builds td { padding: 8px 10px; border-bottom: 1px solid var(--line); }
.builds td.m { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.builds tr:last-child td { border-bottom: 0; }
.empty { color: var(--muted); padding: 30px 0; }
.empty h3 { color: var(--text); }
.runbox { margin-top: 20px; }

/* content tables/lists */
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.tbl th, .tbl td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl th { color: var(--dim); font-weight: 500; font-size: 13px; }
.tbl td:first-child { color: #cfd1da; width: 38%; }
.tbl td { color: var(--muted); }
ol.steps, ul.plain { padding-left: 20px; margin: 0; } ol.steps li, ul.plain li { margin: 6px 0; color: #c3c5d0; }
.section h3 { font-size: 17px; margin: 36px 0 12px; }

.callout { border: 1px solid #4a3d1c; background: #1f1a0e; border-radius: 10px; padding: 16px 20px; color: #e9d6a8; font-size: 14.5px; }
.callout b { color: var(--warn); }

/* doc pages */
.doc { max-width: 780px; margin: 0 auto; padding: 56px 24px 72px; }
.doc h1 { font-size: 32px; margin: 0 0 6px; }
.doc h2 { font-size: 19px; margin: 36px 0 10px; }
.doc p, .doc li { color: #c3c5d0; }
.doc .tbl td:first-child { width: 30%; }

/* footer */
.foot { border-top: 1px solid var(--line); margin-top: 24px; }
.foot-in { max-width: 1120px; margin: 0 auto; padding: 32px 24px 48px; display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; color: var(--dim); font-size: 13.5px; }
.foot-in nav { display: flex; gap: 18px; flex-wrap: wrap; }
.foot-in nav a { color: var(--muted); }
.foot-in p { margin: 4px 0; max-width: 560px; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; }
  .term { display: none; }
  .features, .cols { grid-template-columns: 1fr; gap: 24px; }
  .dl { grid-template-columns: 1fr; }
  .vlist { border-right: 0; border-bottom: 1px solid var(--line); display: flex; overflow-x: auto; padding: 6px; }
  .vlist .grp { display: none; }
  .vlist button { border-left: 0; border-bottom: 2px solid transparent; white-space: nowrap; width: auto; gap: 8px; }
  .vlist button.on { border-bottom-color: var(--accent); }
  .nav nav a.hide-sm { display: none; }
  .builds th:nth-child(3), .builds td:nth-child(3) { display: none; }
}