:root { --bg: #f6f7f4; --surface: #fff; --ink: #1b1f1a; --muted: #5a6157; --line: #d9ddd5; --accent: #2f6b2f; --accent-ink: #fff; --err: #a32020; }
@media (prefers-color-scheme: dark) { :root { --bg: #141713; --surface: #1d211c; --ink: #e8ebe5; --muted: #a6ada2; --line: #343a32; --accent: #7fbf72; --accent-ink: #0f140e; --err: #ff8a80; } }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; padding: 16px; }
main { width: 100%; max-width: 360px; background: var(--surface); border: 1px solid var(--line); border-top: 4px solid var(--accent); border-radius: 8px; padding: 24px; text-align: center; }
.eyebrow { margin: 0; color: var(--accent); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: .75rem; }
h1 { margin: 4px 0 18px; font-size: 1.6rem; }
form { text-align: left; }
label { display: block; font-weight: 600; margin-bottom: 4px; }
input { width: 100%; font: inherit; padding: 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--ink); }
button { width: 100%; margin-top: 12px; font: inherit; padding: 10px; border: 0; border-radius: 6px; background: var(--accent); color: var(--accent-ink); cursor: pointer; }
button:disabled { opacity: .6; }
:focus-visible { outline: 3px solid #1d5fd0; outline-offset: 2px; }
#msg { color: var(--err); min-height: 1.5em; margin: 10px 0 0; }
.foot { color: var(--muted); font-size: .8rem; margin: 16px 0 0; }