:root {
  color-scheme: dark;
  font-family: "Segoe UI", ui-sans-serif, system-ui, sans-serif;
  color: #eef2f7;
  background: #101522;
  line-height: 1.6;
}
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(ellipse at top right, #203850, transparent 65%); }
main { max-width: 860px; margin: auto; padding: 60px 24px 32px; }
header { padding-bottom: 32px; }
.badge { color: #81dac8; letter-spacing: .12em; font-size: .75rem; font-weight: 700; }
h1 { font-size: clamp(2.4rem, 7vw, 3.8rem); line-height: 1.1; letter-spacing: -.035em; margin: 18px 0; }
.accent { color: #81dac8; }
.intro { max-width: 620px; font-size: 1.15rem; color: #b9c8db; }
h2 { margin: 0 0 16px; font-size: 1.4rem; }
h3 { margin: 28px 0 10px; font-size: 1.05rem; }
section { padding: 28px; margin-bottom: 26px; border: 1px solid #344256; border-radius: 18px; background: #171f2ecc; }
.notice { border-top: 3px solid #81dac8; }
ul { padding-left: 22px; }
li { margin-bottom: 12px; }
p { margin: 0 0 16px; }
.small { color: #b9c8db; font-size: .88rem; }
.tabs { display: flex; gap: 8px; margin: 22px 0; }
button { font: inherit; cursor: pointer; border: 1px solid #526178; border-radius: 9px; color: #edf5ff; background: #26354b; padding: 10px 18px; }
button:hover { background: #344960; }
button[aria-selected="true"] { background: #81dac8; color: #101522; border-color: #81dac8; font-weight: 700; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid #81dac8; outline-offset: 4px; }
.command { display: flex; gap: 14px; align-items: flex-start; margin: 16px 0; padding: 16px; border-radius: 12px; background: #0c1220; border: 1px solid #344256; }
pre { min-width: 0; flex: 1; overflow-wrap: anywhere; white-space: pre-wrap; margin: 0; }
code { font-family: Consolas, ui-monospace, monospace; font-size: .89rem; color: #b7eedf; }
.command button { padding: 6px 12px; font-size: .85rem; flex-shrink: 0; }
.warning { padding: 14px 16px; background: #342b18; border: 1px solid #856c37; border-radius: 10px; color: #f5dfac; }
details { border-top: 1px solid #344256; margin-top: 24px; padding-top: 16px; }
summary { cursor: pointer; color: #b9c8db; }
details pre { margin: 16px 0; }
#copy-status { min-height: 1.6em; margin: 20px 0 0; color: #81dac8; }
footer { color: #97aac2; text-align: center; font-size: .84rem; padding: 8px 16px; }
a { color: #81dac8; }
[hidden] { display: none !important; }
@media (max-width: 600px) {
  main { padding: 36px 16px 24px; }
  section { padding: 20px 16px; }
  .command { flex-direction: column; gap: 12px; }
}