:root {
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --fg: #1a1d21;
  --fg-soft: #555b63;
  --line: #e2e5e9;
  --accent: #0b6bcb;
  --accent-soft: #e8f1fb;
  --warn-bg: #fff7e6;
  --warn-line: #e6c47a;
  --tip-bg: #eef7ee;
  --tip-line: #9cc79c;
  --code-bg: #f0f2f5;
  --kbd-bg: #f0f2f5;
  --kbd-line: #c9ced6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181c;
    --bg-soft: #1e2126;
    --fg: #e6e8eb;
    --fg-soft: #a3a9b1;
    --line: #2e333a;
    --accent: #5aa2e8;
    --accent-soft: #1c2b3d;
    --warn-bg: #2d2617;
    --warn-line: #7a6533;
    --tip-bg: #1a2a1a;
    --tip-line: #3d5c3d;
    --code-bg: #23262c;
    --kbd-bg: #23262c;
    --kbd-line: #40454d;
  }
}
* { box-sizing: border-box; }
html { color-scheme: light dark; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.site-header .inner {
  max-width: 880px; margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: baseline; gap: 14px;
}
.site-header .logo { font-weight: 700; font-size: 1.05rem; color: var(--fg); }
.site-header .logo:hover { text-decoration: none; }
.site-header nav { margin-left: auto; font-size: .9rem; }
.site-header nav a { color: var(--fg-soft); margin-left: 16px; }

main { max-width: 880px; margin: 0 auto; padding: 32px 20px 80px; }

h1 { font-size: 1.7rem; line-height: 1.35; margin: 0 0 6px; }
h2 { font-size: 1.25rem; margin: 44px 0 12px; padding-top: 20px; border-top: 1px solid var(--line); }
h3 { font-size: 1.05rem; margin: 30px 0 8px; }
h3 .stepnum {
  display: inline-block; min-width: 1.7em; height: 1.7em; line-height: 1.7em;
  text-align: center; margin-right: 8px;
  background: var(--accent); color: #fff; border-radius: 50%;
  font-size: .85em; font-weight: 700;
}
p { margin: 8px 0; }
.lead { color: var(--fg-soft); margin-bottom: 4px; }
.meta { color: var(--fg-soft); font-size: .87rem; }

figure { margin: 14px 0 20px; }
figure img, figure svg, figure object {
  max-width: 100%; border: 1px solid var(--line); border-radius: 8px; display: block;
}
figcaption { font-size: .84rem; color: var(--fg-soft); margin-top: 6px; }

kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .82em; padding: 1px 6px 2px;
  background: var(--kbd-bg); border: 1px solid var(--kbd-line);
  border-bottom-width: 2px; border-radius: 5px; white-space: nowrap;
}
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .86em; background: var(--code-bg);
  padding: 1px 5px; border-radius: 4px;
}
.path { font-family: ui-monospace, Menlo, monospace; font-size: .86em; }

.note, .tip, .warn {
  margin: 14px 0; padding: 10px 14px; border-radius: 8px; font-size: .93rem;
}
.tip  { background: var(--tip-bg); border: 1px solid var(--tip-line); }
.warn { background: var(--warn-bg); border: 1px solid var(--warn-line); }
.note { background: var(--bg-soft); border: 1px solid var(--line); }
.tip::before  { content: "팁 · "; font-weight: 700; }
.warn::before { content: "주의 · "; font-weight: 700; }

table { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: .92rem; }
.table-wrap { overflow-x: auto; }
th, td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; }
th { background: var(--bg-soft); font-weight: 600; }
td code { white-space: nowrap; }

.card-list { list-style: none; padding: 0; margin: 20px 0; display: grid; gap: 14px; }
.card {
  border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px;
  background: var(--bg); transition: border-color .15s;
}
.card:hover { border-color: var(--accent); }
.card a.cardlink { color: var(--fg); display: block; }
.card a.cardlink:hover { text-decoration: none; }
.card .card-title { font-weight: 700; font-size: 1.05rem; }
.card .card-desc { color: var(--fg-soft); font-size: .9rem; margin-top: 4px; }
.badge {
  display: inline-block; font-size: .75rem; font-weight: 600;
  background: var(--accent-soft); color: var(--accent);
  border-radius: 5px; padding: 1px 8px; margin-bottom: 8px;
}

.toc { list-style: none; padding: 0; margin: 20px 0; display: grid; gap: 8px; }
.toc li { border: 1px solid var(--line); border-radius: 8px; }
.toc a { display: flex; gap: 12px; align-items: baseline; padding: 10px 14px; color: var(--fg); }
.toc a:hover { text-decoration: none; border-color: var(--accent); background: var(--bg-soft); }
.toc .no { color: var(--accent); font-weight: 700; min-width: 1.4em; }
.toc .dur { margin-left: auto; color: var(--fg-soft); font-size: .84rem; }

.pager {
  display: flex; justify-content: space-between; gap: 12px;
  margin-top: 56px; padding-top: 18px; border-top: 1px solid var(--line); font-size: .95rem;
}
.pager a { max-width: 48%; }
.pager .next { margin-left: auto; text-align: right; }

.dl-box {
  border: 1px solid var(--accent); border-radius: 10px;
  padding: 14px 18px; margin: 18px 0; background: var(--accent-soft);
}
.dl-box .dl-title { font-weight: 700; }
.dl-box .meta { margin-top: 2px; }

.site-footer {
  border-top: 1px solid var(--line); color: var(--fg-soft);
  font-size: .82rem; padding: 20px; text-align: center;
}
.site-footer a { color: var(--fg-soft); text-decoration: underline; }

.img-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 640px) { .img-cols { grid-template-columns: 1fr; } }