:root, :root[data-theme] {
  --bg: #060a14; --surface: #0b1220; --text: #f1f5fb; --muted: #9ba8bf;
  --line: #1f2b44; --accent: #7aa9ff; --accent-soft: #0f1b33; --code: #111a2e;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo",
    "Noto Sans KR", sans-serif;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
a { color: var(--accent); }
code { background: var(--code); padding: 0.1em 0.35em; border-radius: 4px; font-size: 0.92em; white-space: nowrap; }

.wrap { max-width: 860px; margin: 0 auto; padding: 0 20px; }

header.site {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
header.site .wrap {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 4px 16px; min-height: 60px; padding-top: 8px; padding-bottom: 8px;
}
.brand { white-space: nowrap; display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; }
.brand svg { width: 28px; height: 28px; flex: none; }
nav.site { display: flex; gap: 18px; font-size: 15px; }
nav.site a { color: var(--muted); text-decoration: none; white-space: nowrap; }
nav.site a:hover, nav.site a[aria-current="page"] { color: var(--text); }

.hero { padding: 64px 0 40px; }
.hero h1 { font-size: clamp(28px, 5vw, 40px); line-height: 1.3; margin: 0 0 14px; letter-spacing: -0.01em; }
.hero p { font-size: 18px; color: var(--muted); margin: 0; max-width: 640px; }

section { padding: 28px 0; }
h2 { font-size: 22px; margin: 0 0 14px; }
h3 { font-size: 17px; margin: 22px 0 6px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; }
.card h3 { margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

ol.steps { padding-left: 1.3em; margin: 0; }
ol.steps li { margin: 6px 0; }

.note { background: var(--accent-soft); border-radius: 12px; padding: 16px 20px; }
.note p { margin: 0; }

.doc { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 28px 32px; margin: 32px 0; }
.doc h1 { font-size: 28px; margin: 0 0 4px; }
.doc .meta { color: var(--muted); margin: 0 0 20px; font-size: 14px; }
.doc h2 { margin-top: 30px; font-size: 20px; }
.doc ul { padding-left: 1.3em; }
.doc li { margin: 4px 0; }
.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--code); }

.lang-divider { border: 0; border-top: 1px solid var(--line); margin: 40px 0 8px; }

footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; padding: 24px 0 40px; margin-top: 24px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 6px 18px; }

@media (max-width: 560px) {
  .doc { padding: 20px 18px; }
  nav.site { gap: 12px; font-size: 14px; }
}

.card, .note, .doc, code { border-radius: 0; }