:root { color-scheme: light dark; --bg: #eaece7; --panel: #f5f6f2; --ink: #1d2624; --muted: #5f6b67; --line: #c9cfc9; --accent: #c8452c; }
@media (prefers-color-scheme: dark) { :root { --bg: #151c1a; --panel: #1d2624; --ink: #e5ebe7; --muted: #95a19c; --line: #2f3b38; --accent: #f0674a; } }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100dvh; display: grid; place-items: center; padding: 16px; background: var(--bg); color: var(--ink); font: 16px/1.4 system-ui, -apple-system, sans-serif; }
form { width: min(320px, 100%); display: grid; gap: 10px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
img { justify-self: center; }
h1 { font: 600 26px/1.1 Georgia, serif; margin: 0 0 6px; text-align: center; }
label { color: var(--muted); font-size: 14px; }
input { font: inherit; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); }
button { font: inherit; font-weight: 700; padding: 10px; border: 0; border-radius: 8px; background: var(--accent); color: #fff; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.msg { margin: 0; color: var(--accent); font-size: 14px; }
[hidden] { display: none; }