/* Level guide pages (/levels/…). Tokens match landing.css. */
:root {
  --bg: #0b1020; --surface: #151c34; --surface-2: #1c2542; --surface-3: #25304f;
  --line: rgba(255,255,255,0.08); --line-2: rgba(255,255,255,0.14);
  --text: #eef1ff; --text-2: #b7bfdc; --muted: #7f89ad; --accent: #ffb547; --accent-ink: #2a1a00; --ok: #3ddc97;
  --font: 'Pretendard', 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { overflow-wrap: break-word; }
:lang(ko) { word-break: keep-all; }
:lang(ja) { word-break: auto-phrase; }
p, li, dd, dt, summary { text-wrap: pretty; }
h1, h2, .lead { text-wrap: balance; }
body { margin: 0; background: radial-gradient(120% 60% at 50% -10%, #1a2350 0%, var(--bg) 55%) fixed, var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.wrap { width: min(1080px, 100% - 32px); margin-inline: auto; }
.nav { position: sticky; top: 0; z-index: 5; background: rgba(11,16,32,0.82); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; text-decoration: none; letter-spacing: -0.01em; }
.brand img { border-radius: 8px; }
.brand b { color: var(--accent); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 999px; padding: 12px 22px; font-weight: 800; text-decoration: none; border: 1px solid transparent; min-height: 46px; white-space: nowrap; transition: transform .08s, background .15s; }
.btn:active { transform: scale(.97); }
.btn-sm { min-height: 38px; padding: 8px 16px; font-size: .9rem; }
.btn-lg { min-height: 54px; font-size: 1.05rem; }
.btn-primary { background: linear-gradient(180deg, #ffc56b, var(--accent)); color: var(--accent-ink); box-shadow: 0 10px 30px rgba(255,181,71,.28), inset 0 1px 0 rgba(255,255,255,.45); }
.btn-secondary { background: var(--surface-2); border-color: var(--line-2); }
.btn-ghost { background: transparent; border-color: var(--line-2); }
.btn-secondary:hover, .btn-ghost:hover { background: var(--surface-3); }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 70%, transparent); outline-offset: 2px; border-radius: 8px; }
.crumbs { display: flex; gap: 8px; flex-wrap: wrap; color: var(--muted); font-size: .85rem; margin: 22px 0 8px; }
.crumbs a { color: var(--text-2); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.eyebrow { margin: 0; font-size: .75rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.tag { color: var(--accent); }
h1 { margin: 6px 0 8px; font-size: clamp(1.8rem, 5vw, 2.8rem); line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: 1.35rem; margin: 0 0 10px; }
.lead { color: var(--text-2); font-size: 1.08rem; margin: 0 0 18px; max-width: 60ch; }
.lv-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(260px, 1fr); gap: 20px; align-items: start; }
.lv-board { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 14px; }
.lv-board .board { width: 100%; height: auto; display: block; border-radius: 12px; }
.lv-board figcaption { color: var(--muted); font-size: .8rem; margin-top: 8px; text-align: center; }
.lv-side { display: grid; gap: 10px; }
.stats { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 10px 12px; }
.stat dt { color: var(--muted); font-size: .72rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.stat dd { margin: 2px 0 0; font-size: 1.25rem; font-weight: 900; }
.howto { margin: 26px 0; background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 20px 22px; }
.howto ol { margin: 0 0 14px; padding-left: 1.2em; color: var(--text-2); display: grid; gap: 6px; }
.spoiler { border-top: 1px solid var(--line); padding-top: 12px; }
.spoiler summary { cursor: pointer; font-weight: 800; color: var(--accent); }
.moves { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0 6px; }
.moves span { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--line-2); font-weight: 900; }
.muted { color: var(--muted); font-size: .85rem; margin: 0; }
.pager { display: flex; justify-content: space-between; gap: 10px; margin: 0 0 40px; }
.cta-row { display: flex; gap: 10px; flex-wrap: wrap; }
.cards { list-style: none; padding: 0; margin: 10px 0 44px; display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.cards .card { display: grid; gap: 4px; padding: 12px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); text-decoration: none; transition: transform .12s, border-color .15s; height: 100%; }
.cards .card:hover { transform: translateY(-2px); border-color: var(--line-2); }
.cards .board { width: 100%; height: auto; border-radius: 8px; margin-bottom: 6px; }
.cards .num { color: var(--muted); font-size: .72rem; font-weight: 800; letter-spacing: .1em; }
.cards strong { font-size: 1rem; }
.cards .meta { color: var(--text-2); font-size: .8rem; }
.foot { border-top: 1px solid var(--line); padding: 26px 0 40px; color: var(--muted); font-size: .85rem; }
.foot-links, .foot-langs { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-bottom: 10px; }
.foot a { color: var(--text-2); text-decoration: none; }
.foot a:hover, .foot a[aria-current] { color: var(--text); text-decoration: underline; }
.copy { margin: 8px 0 0; }
@media (max-width: 760px) { .lv-grid { grid-template-columns: 1fr; } .pager .btn { padding: 10px 14px; } }