:root{color-scheme:light dark;--bg:#f6f7f9;--fg:#1b1f24;--card:#fff;--line:#d8dce2;--mut:#5b6572;--acc:#1f5fbf;--bad:#b3261e}
@media (prefers-color-scheme:dark){:root{--bg:#14171b;--fg:#e6e9ed;--card:#1d2127;--line:#343a42;--mut:#9aa4b0;--acc:#6ea4f4;--bad:#f2867f}}
*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,sans-serif;background:var(--bg);color:var(--fg)}
header.bar{display:flex;gap:1rem;align-items:center;justify-content:space-between;padding:.6rem 1rem;border-bottom:1px solid var(--line);background:var(--card)}
header.bar nav{display:flex;gap:1rem;align-items:center}header.bar form{margin:0}
main{max-width:60rem;margin:1.5rem auto;padding:0 1rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:1rem 1.25rem;margin:0 0 1rem}
.narrow{max-width:28rem;margin-left:auto;margin-right:auto}.center{text-align:center}
h1{font-size:1.4rem;margin:.2rem 0 .8rem}h2{font-size:1.1rem;margin:.2rem 0 .6rem}
a{color:var(--acc)}.muted{color:var(--mut)}.small{font-size:.875rem}.bad{color:var(--bad)}.mono{font-family:ui-monospace,monospace;word-break:break-all}
table{border-collapse:collapse;width:100%}th,td{text-align:left;padding:.35rem .5rem;border-bottom:1px solid var(--line);vertical-align:middle}
button,.button{font:inherit;padding:.35rem .8rem;border:1px solid var(--line);border-radius:6px;background:var(--card);color:var(--fg);cursor:pointer;text-decoration:none;display:inline-block}
button.primary,.button.primary{background:var(--acc);border-color:var(--acc);color:#fff}
button.danger{color:var(--bad)}input[type=text],input[type=number]{font:inherit;padding:.3rem .5rem;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--fg)}
form.inline{display:inline}.keybox{padding:.6rem;border:1px dashed var(--acc);border-radius:6px;margin:.5rem 0}