:root {
  color-scheme: light dark;
  --background: #f4f1ea;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #5f6b76;
  --accent: #2f6f4f;
  --accent-text: #ffffff;
  --border: #cfd6dc;
  --danger: #a12622;
}
@media (prefers-color-scheme: dark) {
  :root {
    --background: #14181c;
    --surface: #1e242a;
    --text: #e6eaee;
    --muted: #9aa5af;
    --accent: #5fb487;
    --accent-text: #0f1a14;
    --border: #36404a;
    --danger: #f08a85;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
  background: var(--background);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main {
  width: 100%;
  max-width: 400px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.site { margin: 0 0 4px; font-size: 14px; color: var(--muted); }
h1 { margin: 0 0 16px; font-size: 24px; }
label { display: block; margin: 12px 0 4px; font-size: 14px; color: var(--muted); }
input {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  color: inherit;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: 8px;
}
input:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button {
  margin-top: 16px;
  width: 100%;
  padding: 11px 12px;
  font: inherit;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: default; }
button.secondary { color: var(--text); background: transparent; border: 1px solid var(--border); }
a { color: var(--accent); }
.links { display: flex; flex-direction: column; gap: 6px; margin-top: 20px; font-size: 14px; }
.message { margin: 12px 0 0; }
.error { margin: 12px 0 0; color: var(--danger); }