/* 열어줘 사이트. 앱과 같은 색·모양을 쓴다. 외부 글꼴·스크립트·추적 코드는 없다. */
:root {
  --bg: #fbf6ec; --card: #ffffff; --ink: #1f1b16; --soft: #6a6055; --line: #e9e0cf;
  --lock: #ff5a3c; --open: #19b37d; --butter: #ffd25e; --butter-soft: #fff1c4;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #17140f; --card: #242019; --ink: #f7f0e3; --soft: #bdb2a0; --line: #3b3428; --butter-soft: #4a3d17; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  font-size: 17px; line-height: 1.7; word-break: keep-all; overflow-wrap: anywhere;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 28px 20px 64px; }
header.top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 12px; margin-bottom: 28px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--ink); text-decoration: none; }
.brand img { width: 40px; height: 40px; border-radius: 11px; border: 2px solid #1f1b16; }
nav { display: flex; flex-wrap: wrap; gap: 4px 14px; }
nav a { color: var(--soft); text-decoration: none; font-weight: 600; font-size: 15px; white-space: nowrap; }
nav a:hover, nav a[aria-current="page"] { color: var(--ink); }
h1 { font-size: 32px; line-height: 1.3; letter-spacing: -0.02em; margin: 0 0 12px; font-weight: 800; }
h2 { font-size: 21px; line-height: 1.4; margin: 36px 0 10px; font-weight: 800; }
p { margin: 0 0 12px; }
ul, ol { margin: 0 0 12px; padding-left: 22px; }
li { margin-bottom: 6px; }
a { color: inherit; }
.lead { font-size: 19px; color: var(--soft); }
.card { background: var(--card); border: 1.5px solid var(--line); border-radius: 24px; padding: 20px; margin: 16px 0; }
.note { background: var(--butter-soft); border: 2px solid #1f1b16; border-radius: 20px; padding: 16px 18px; margin: 16px 0; }
.steps { display: grid; gap: 12px; margin: 20px 0; padding: 0; list-style: none; }
.steps li { display: flex; gap: 14px; align-items: flex-start; background: var(--card); border: 1.5px solid var(--line); border-radius: 20px; padding: 16px; margin: 0; }
.num { flex: none; width: 34px; height: 34px; border-radius: 12px; border: 2px solid #1f1b16; background: var(--butter); color: #1f1b16; font-weight: 800; display: grid; place-items: center; }
.steps b { display: block; }
.steps span { color: var(--soft); font-size: 15.5px; }
.btn { display: inline-block; background: var(--lock); color: #1f1b16; font-weight: 800; text-decoration: none; padding: 13px 22px; border-radius: 18px; border: 2px solid #1f1b16; box-shadow: 0 4px 0 #1f1b16; }
table { width: 100%; border-collapse: collapse; margin: 12px 0 16px; font-size: 15.5px; }
th, td { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1.5px solid var(--line); }
th { color: var(--soft); font-weight: 700; white-space: nowrap; }
.table-scroll { overflow-x: auto; }
footer { margin-top: 48px; padding-top: 20px; border-top: 1.5px solid var(--line); color: var(--soft); font-size: 14.5px; }
footer a { margin-right: 14px; }
.meta { color: var(--soft); font-size: 15px; }