:root { --bg:#FFFFFF; --ink:#0B0A12; --muted:#5E5973; --line:#DCD6EA; --accent:#7B2FFF; --panel:#F4F2FA; color-scheme: light dark; }
@media (prefers-color-scheme: dark) { :root { --bg:#000000; --ink:#FFFFFF; --muted:#A7A1BC; --line:#2C2840; --accent:#A97BFF; --panel:#110F18; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.65 "Manrope", "Segoe UI", system-ui, sans-serif;
  padding: 0 max(16px, env(safe-area-inset-left)) 48px max(16px, env(safe-area-inset-right)); overflow-wrap: anywhere; }
main { max-width: 680px; margin: 0 auto; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 0 8px; border-bottom: 1px solid var(--line); }
.brand { font: 900 26px/1 "Big Shoulders Display", "Arial Narrow", Impact, sans-serif; text-transform: uppercase; letter-spacing: .02em; color: var(--ink); text-decoration: none; }
.play { background: var(--accent); color: #fff; text-decoration: none; font-weight: 700; padding: 10px 16px; border-radius: 999px; font-size: 15px; }
h1 { font: 800 34px/1.1 "Big Shoulders Display", "Arial Narrow", Impact, sans-serif; text-transform: uppercase; margin: 28px 0 4px; }
h2 { font-size: 18px; margin: 28px 0 6px; }
.date { color: var(--muted); margin: 0 0 16px; }
a { color: var(--accent); }
ul { padding-left: 22px; }
li { margin: 4px 0; }
.box { background: var(--panel); border-radius: 14px; padding: 14px 16px; margin: 16px 0; }
footer { margin-top: 40px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* archive and about pages */
.crumbs { margin: 18px 0 0; font-size: 14px; color: var(--muted); }
.crumbs a { color: var(--muted); }
.ans { border: 1px solid var(--line); border-radius: 18px; padding: 16px 16px 12px; margin: 18px 0; }
.ans h2 { font: 800 28px/1.05 "Big Shoulders Display", "Arial Narrow", Impact, sans-serif; text-transform: uppercase; margin: 2px 0 6px; }
.pk { margin: 0; font: 700 12px/1.4 "JetBrains Mono", ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.ans .q { margin: 0 0 10px; }
.order { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.order li { display: flex; gap: 12px; align-items: flex-start; background: var(--panel); border-radius: 12px; padding: 10px 12px; margin: 0; }
.rk { flex: none; width: 34px; height: 34px; border-radius: 10px; background: var(--ink); color: var(--bg); display: grid; place-items: center; font: 900 20px/1 "Big Shoulders Display", Impact, sans-serif; }
.nm { display: flex; flex-direction: column; min-width: 0; }
.val { font: 600 14px/1.4 "JetBrains Mono", ui-monospace, monospace; color: var(--accent); }
.why { font-size: 14px; color: var(--muted); line-height: 1.5; }
.fact { margin: 12px 0 4px; }
.src { margin: 4px 0; font-size: 13px; color: var(--muted); }
.pager { display: flex; justify-content: space-between; gap: 12px; margin: 20px 0; font-weight: 700; }
.days { list-style: none; padding: 0; margin: 16px 0; display: flex; flex-direction: column; gap: 10px; }
.days li { margin: 0; }
.days a { display: flex; flex-direction: column; gap: 4px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; color: var(--ink); }
.days a:hover, .days a:focus-visible { border-color: var(--accent); }
.days .d { font-weight: 800; }
.days .t { font-size: 15px; color: var(--muted); }
.days .t .pk { display: inline; font-size: 11px; margin-right: 6px; }
.steps { padding-left: 22px; }
details { border-top: 1px solid var(--line); padding: 10px 0; }
details summary { cursor: pointer; font-weight: 700; }
details p { margin: 8px 0 0; }