/* Apartment watcher pages: index and tutorials. Plain CSS, light and dark. */
:root {
  --bg: #f6f7f9; --fg: #1c1e21; --muted: #5b6470; --card: #ffffff; --line: #e1e5ea;
  --accent: #2a6df4; --accent-ink: #ffffff; --tint: rgba(42, 109, 244, 0.08);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #15171b; --fg: #e8e9eb; --muted: #a3abb5; --card: #1e2127; --line: #2e333b;
          --accent: #5b8ff7; --tint: rgba(91, 143, 247, 0.12); }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); line-height: 1.6;
       font-family: -apple-system, "Segoe UI", Roboto, system-ui, sans-serif; }
main { max-width: 46rem; margin: 0 auto; padding: 2.5rem 1rem 4rem; }
h1 { font-size: clamp(1.7rem, 4vw, 2.3rem); line-height: 1.2; margin: 0 0 .6rem; }
h2 { font-size: 1.35rem; margin: 2.8rem 0 .6rem; padding-top: .4rem; border-top: 1px solid var(--line); }
h3 { font-size: 1.05rem; margin: 1.6rem 0 .3rem; }
a { color: var(--accent); }
.lead { font-size: 1.12rem; color: var(--muted); margin-top: 0; }
.button { display: inline-block; padding: .75rem 1.3rem; border-radius: .5rem; background: var(--accent);
          color: var(--accent-ink); font-weight: 600; text-decoration: none; }
.soon { display: inline-block; padding: .55rem .9rem; border-radius: .5rem; background: var(--tint); color: var(--muted); }
.box { background: var(--tint); border-radius: .6rem; padding: .9rem 1.1rem; margin: 1.2rem 0; }
.cards { display: grid; gap: .8rem; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); margin: 1.4rem 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: .6rem; padding: .9rem 1rem; }
.card strong { display: block; margin-bottom: .2rem; }
ol.steps { padding-left: 1.3rem; } ol.steps li { margin: .35rem 0; }
figure { margin: 1.2rem 0 1.6rem; }
figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: .6rem; background: #fff; }
figure.narrow img { max-width: 22rem; }
figcaption { font-size: .9rem; color: var(--muted); margin-top: .4rem; }
.toc { background: var(--card); border: 1px solid var(--line); border-radius: .6rem; padding: .8rem 1.2rem; }
.toc ol { margin: .3rem 0; padding-left: 1.2rem; }
details { background: var(--card); border: 1px solid var(--line); border-radius: .5rem; padding: .6rem .9rem; margin: .5rem 0; }
summary { cursor: pointer; font-weight: 600; }
footer { margin-top: 3.5rem; font-size: .9rem; color: var(--muted); }
footer a { color: inherit; }