:root {
  color-scheme: light dark;
  --paper: #f5f4f0; --surface: #ffffff; --ink: #1b1d1f; --ink-2: #3d4145; --ink-3: #5e6368;
  --line: #dcd9d1; --edge: #83807a; --accent: #1d4f91; --on-accent: #ffffff; --bad: #a12b2b; --good: #1f6b3a;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #121416; --surface: #1c1f22; --ink: #ecebe7; --ink-2: #d0cfca; --ink-3: #9da09c;
    --line: #2e3236; --edge: #7b8086; --accent: #8fb8f0; --on-accent: #0e1622; --bad: #e59090; --good: #86c79c;
  }
}
* { box-sizing: border-box; }
body { margin: 0; padding: 0 1.25rem; background: var(--paper); color: var(--ink); font: 1rem/1.6 var(--sans); }
header, main, footer { max-width: 60rem; margin: 0 auto; }
header { display: flex; justify-content: space-between; align-items: baseline; padding: 1.2rem 0; }
.brand { font-weight: 700; font-size: 1.25rem; color: var(--ink); text-decoration: none; }
nav a { color: var(--ink-2); text-decoration: none; margin-left: 1.3rem; font-size: 0.95rem; }
a { color: var(--accent); }
h1 { font-size: clamp(2.1rem, 5vw, 3.2rem); line-height: 1.08; letter-spacing: -0.02em; margin: 2.2rem 0 1rem; max-width: 44rem; }
h2 { font-size: 1.5rem; margin: 3.5rem 0 1rem; }
p { margin: 0 0 0.9rem; max-width: 38rem; color: var(--ink-2); }
.lede { font-size: 1.15rem; }
.button { display: inline-block; font: 600 1rem var(--sans); background: var(--accent); color: var(--on-accent); border: 1px solid var(--accent); border-radius: 8px; padding: 0.7rem 1.2rem; text-decoration: none; cursor: pointer; }
.button.plain { background: var(--surface); color: var(--ink); border-color: var(--edge); }
.actions { display: flex; gap: 0.7rem; flex-wrap: wrap; margin: 1.4rem 0 0.6rem; }
.report { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; margin: 2.2rem 0 0; overflow: hidden; }
.report div { display: grid; grid-template-columns: 14rem 12rem 1fr; gap: 1rem; padding: 0.75rem 1rem; border-top: 1px solid var(--line); font-size: 0.95rem; }
.report div:first-child { border-top: 0; }
.report strong { font-weight: 600; }
.report .bad { color: var(--bad); font-weight: 600; }
.report .warn { color: var(--ink-2); font-weight: 600; }
.report .good { color: var(--good); font-weight: 600; }
.report code { font: 0.85rem var(--mono); color: var(--ink-3); }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
ul { margin: 0; padding-left: 1.15rem; color: var(--ink-2); max-width: 38rem; }
li { margin-bottom: 0.4rem; }
.price { font-size: 2.6rem; font-weight: 700; line-height: 1; margin: 0 0 0.8rem; color: var(--ink); }
.price small { font-size: 1rem; font-weight: 400; color: var(--ink-2); }
details { border-top: 1px solid var(--line); padding: 0.8rem 0; max-width: 38rem; }
summary { font-weight: 600; cursor: pointer; }
details p { margin: 0.5rem 0 0; }
form.key { display: flex; gap: 0.6rem; flex-wrap: wrap; margin: 1rem 0; }
input { font: 1rem var(--mono); padding: 0.65rem 0.7rem; border: 1px solid var(--edge); border-radius: 8px; background: var(--surface); color: var(--ink); min-width: min(24rem, 100%); }
footer { margin-top: 4rem; padding: 1.4rem 0 3rem; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 0.9rem; }
@media (max-width: 44rem) {
  .cols, .report div { grid-template-columns: 1fr; gap: 0.2rem; }
  nav a:not(:last-child) { display: none; }
}