:root {
  --bg: #080916;
  --bg2: #14132e;
  --card: rgba(255, 255, 255, 0.05);
  --line: rgba(255, 255, 255, 0.1);
  --text: #f3f3f8;
  --muted: #9d9cb5;
  --accent: #7c6cff;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Apple SD Gothic Neo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  min-height: 100vh;
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 48px 24px 80px; }
header.site { display: flex; align-items: center; gap: 12px; margin-bottom: 56px; }
header.site img { width: 40px; height: 40px; border-radius: 10px; }
header.site a { color: var(--text); text-decoration: none; font-weight: 700; font-size: 18px; }
header.site nav { margin-left: auto; display: flex; gap: 20px; }
header.site nav a { color: var(--muted); font-size: 14px; font-weight: 500; }
header.site nav a:hover { color: var(--text); }
h1 { font-size: 32px; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 12px; }
.sub { color: var(--muted); font-size: 16px; margin-bottom: 40px; }
h2 { font-size: 19px; font-weight: 700; margin: 36px 0 10px; }
p, li { color: #c9c8da; font-size: 15px; }
ul { padding-left: 20px; }
a { color: var(--accent); }
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 16px; padding: 24px 28px; margin: 16px 0;
}
.card h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.card p { font-size: 14px; }
.btn {
  display: inline-block; background: var(--accent); color: #fff;
  padding: 14px 28px; border-radius: 14px; text-decoration: none;
  font-weight: 700; font-size: 15px;
}
footer {
  margin-top: 72px; padding-top: 24px; border-top: 1px solid var(--line);
  color: var(--muted); font-size: 13px;
  display: flex; gap: 16px; flex-wrap: wrap;
}
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--text); }
/* 랜딩 히어로 */
.hero { text-align: center; padding: 40px 0 20px; }
.hero img.logo { width: 96px; height: 96px; border-radius: 24px; margin-bottom: 28px; }
.hero h1 { font-size: 42px; line-height: 1.3; }
.hero .tagline { color: var(--accent); font-weight: 700; font-size: 15px; letter-spacing: 0.5px; margin-bottom: 8px; }
.hero .sub { max-width: 480px; margin: 0 auto 36px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-top: 48px; text-align: left; }