:root {
  --bg: #f7f6f3;
  --fg: #1c1b19;
  --muted: #6b6862;
  --card: #ffffff;
  --line: #e3e0da;
  --accent: #2f7d5b;
  --accent-fg: #ffffff;
  --code: #efede8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161614;
    --fg: #eeebe4;
    --muted: #9c988f;
    --card: #201f1c;
    --line: #34322e;
    --accent: #4fb385;
    --accent-fg: #111111;
    --code: #262521;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
main, header, footer { max-width: 920px; margin: 0 auto; padding: 0 16px; }
header { display: flex; justify-content: space-between; align-items: center; padding-top: 20px; padding-bottom: 20px; }
header a { color: var(--fg); text-decoration: none; font-weight: 700; }
nav a { color: var(--muted); margin-left: 16px; font-weight: 500; }
h1 { font-size: clamp(32px, 6vw, 52px); line-height: 1.1; margin: 40px 0 12px; letter-spacing: -0.02em; }
h2 { font-size: 26px; margin: 56px 0 12px; }
h3 { font-size: 18px; margin: 0 0 6px; }
p.lead { font-size: 20px; color: var(--muted); max-width: 640px; }
.counter { display: inline-block; margin: 16px 0; padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); color: var(--muted); }
.counter strong { color: var(--accent); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.card p { margin: 0; color: var(--muted); }
pre { background: var(--code); border-radius: 10px; padding: 14px; overflow-x: auto; font-size: 14px; }
code { font-family: ui-monospace, "Cascadia Code", Menlo, monospace; }
.price { font-size: 34px; font-weight: 700; }
.price small { font-size: 16px; color: var(--muted); font-weight: 500; }
ul.check { list-style: none; padding: 0; margin: 12px 0; }
ul.check li { padding: 3px 0 3px 24px; position: relative; }
ul.check li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
button, .button { display: inline-block; border: 0; border-radius: 9px; padding: 11px 18px; background: var(--accent); color: var(--accent-fg); font-weight: 600; font-size: 15px; cursor: pointer; text-decoration: none; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
button[disabled] { opacity: 0.5; cursor: not-allowed; }
.note { color: var(--muted); font-size: 14px; }
.placeholder { border: 2px dashed #c4782a; border-radius: 10px; padding: 14px; color: #c4782a; margin: 20px 0; }
footer { margin-top: 72px; padding-top: 20px; padding-bottom: 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; gap: 16px; }
footer a { color: var(--muted); }
article { max-width: 720px; }
article h1 { font-size: clamp(28px, 5vw, 40px); }
@media (max-width: 560px) { nav a { margin-left: 10px; } }