:root { --bg: #f6f7f9; --card: #fff; --ink: #1c2430; --muted: #5b6676; --line: #dde2e8; --accent: #1f5fd1; --ok: #17803d; --bad: #b42318; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f141b; --card: #171e28; --ink: #e6ebf1; --muted: #9aa6b5; --line: #2a3442; --accent: #6e9bf0; --ok: #4fc27a; --bad: #f2786b; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 40rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
h1 { font-size: 1.5rem; margin: 0 0 .5rem; }
h2 { font-size: 1.125rem; margin: 0 0 .75rem; }
.lead, .muted { color: var(--muted); }
.box { background: var(--card); border: 1px solid var(--line); border-radius: .75rem; padding: 1rem 1.25rem; margin: 1rem 0; }
.box.error, .field-error { color: var(--bad); }
.box.ok { color: var(--ok); }
dl { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; margin: 0 0 1rem; }
dt { color: var(--muted); }
dd { margin: 0; overflow-wrap: anywhere; }
ul { margin: 0; padding-left: 1.1rem; }
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .9em; overflow-wrap: anywhere; }
label { display: block; font-weight: 600; margin: .75rem 0 .25rem; }
input { width: 100%; padding: .6rem .75rem; font: inherit; font-family: ui-monospace, Menlo, Consolas, monospace; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: .5rem; }
button { margin-top: .75rem; padding: .65rem 1.1rem; font: inherit; font-weight: 600; color: #fff; background: var(--accent); border: 0; border-radius: .5rem; cursor: pointer; }
button:disabled { opacity: .6; cursor: wait; }
@media (max-width: 30rem) { dl { grid-template-columns: 1fr; } dt { margin-top: .5rem; } button { width: 100%; } }
h3 { font-size: 1.05rem; margin: 0 0 .75rem; }
h2.section { margin: 1.5rem 0 .25rem; }
.scroll { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: .75rem; margin: .75rem 0; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem 1rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: .9rem; }
tr:last-child td { border-bottom: 0; }