:root { color-scheme: light dark; --bg: #f4f5f7; --fg: #1c1e21; --card: #fff; --accent: #0b5fff; --err: #b00020; --line: #c9ced6; }
@media (prefers-color-scheme: dark) { :root { --bg: #14161a; --fg: #e8eaed; --card: #1e2127; --accent: #6ea0ff; --err: #ff8a9b; --line: #3a3f48; } }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, sans-serif; background: var(--bg); color: var(--fg); min-height: 100vh; }
.card { max-width: 24rem; margin: 10vh auto; padding: 1.5rem; background: var(--card); border: 1px solid var(--line); border-radius: .5rem; }
h1 { margin: 0 0 1rem; font-size: 1.4rem; }
label { display: block; margin: .75rem 0 .25rem; font-weight: 600; }
input { width: 100%; padding: .6rem; font: inherit; color: inherit; background: transparent; border: 1px solid var(--line); border-radius: .35rem; }
input:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
button { margin-top: 1rem; padding: .65rem 1rem; font: inherit; font-weight: 600; color: #fff; background: var(--accent); border: 0; border-radius: .35rem; cursor: pointer; }
button:disabled { opacity: .6; cursor: progress; }
button.link { background: none; color: var(--accent); padding: .65rem 0 0 .75rem; }
.error { color: var(--err); margin: .75rem 0 0; }
.bar { display: flex; gap: 1rem; align-items: center; padding: .5rem 1rem; background: var(--card); border-bottom: 1px solid var(--line); }
.bar span { flex: 1; text-align: right; }
.bar button.link { margin: 0; padding: 0; }
dt { font-weight: 600; margin-top: .5rem; } dd { margin: 0; }