:root { --bg: #0f1720; --card: #1b2633; --line: #2a3949; --fg: #eef3f8; --mut: #93a4b7; --acc: #ffb020; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: system-ui, -apple-system, 'Noto Sans KR', sans-serif; line-height: 1.6; }
a { color: var(--acc); }
header, main, footer { max-width: 960px; margin: 0 auto; padding: 0 16px; }
header { display: flex; align-items: center; justify-content: space-between; padding-top: 22px; padding-bottom: 10px; }
.logo { font-weight: 800; font-size: 22px; color: var(--fg); text-decoration: none; letter-spacing: -0.3px; }
.logo span { color: var(--acc); }
nav a { color: var(--mut); text-decoration: none; margin-left: 18px; font-size: 14px; }
nav a:hover { color: var(--fg); }
h1 { font-size: 34px; line-height: 1.2; margin: 26px 0 8px; }
h2 { font-size: 22px; margin: 34px 0 10px; }
p.lead { color: var(--mut); margin: 0 0 26px; font-size: 17px; }
.game { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.game img { width: 100%; height: auto; border-radius: 12px; display: block; }
.game h2 { margin-top: 4px; }
.btn { display: inline-block; background: #12a150; color: #fff; text-decoration: none; font-weight: 700; padding: 12px 22px; border-radius: 12px; margin-top: 8px; }
.btn:hover { filter: brightness(1.1); }
ul { padding-left: 20px; }
li { margin: 4px 0; }
.keys { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 6px 18px; font-size: 14px; color: var(--mut); padding: 0; list-style: none; }
kbd { background: #263446; border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; font-size: 12px; color: var(--fg); }
.doc { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 8px 24px 20px; margin-top: 18px; }
.doc h2 { font-size: 18px; margin-top: 26px; }
.muted { color: var(--mut); font-size: 14px; }
footer { margin-top: 48px; padding-top: 18px; padding-bottom: 32px; border-top: 1px solid var(--line); color: var(--mut); font-size: 13px; }
footer a { color: var(--mut); margin-right: 14px; }
@media (max-width: 720px) {
  .game { grid-template-columns: 1fr; }
  h1 { font-size: 27px; }
  nav a { margin-left: 12px; }
}