:root { color-scheme: light dark; --bg: #f7f7f5; --fg: #1d1d1b; --muted: #66665f; --card: #fff; --line: #ddddd6; --accent: #2b5fd9; --error: #b3261e; }
@media (prefers-color-scheme: dark) { :root { --bg: #181816; --fg: #ececea; --muted: #a3a39c; --card: #222220; --line: #3a3a36; --accent: #7aa2ff; --error: #f2b8b5; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 34rem; margin: 0 auto; padding: 3rem 16px; }
h1 { font-size: 1.25rem; margin: 0 0 1rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 1rem 1.25rem; margin-bottom: 1rem; }
dl { display: grid; grid-template-columns: auto 1fr; gap: .25rem 1rem; margin: 0; }
dt { color: var(--muted); }
dd { margin: 0; font-family: ui-monospace, Consolas, monospace; overflow-wrap: anywhere; user-select: all; }
.button { display: inline-block; background: var(--accent); color: var(--bg); text-decoration: none; padding: .5rem 1rem; border-radius: 6px; font-weight: 600; }
p { margin: .75rem 0 0; }
.muted { color: var(--muted); font-size: .9rem; }
.error { color: var(--error); }
.field { display: grid; gap: .25rem; }
.field label { color: var(--muted); font-size: .9rem; }
.field input { width: 100%; font: 15px ui-monospace, Consolas, monospace; padding: .4rem .5rem; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--fg); }
.field input[aria-invalid="true"] { border-color: var(--error); }
[hidden] { display: none !important; }