:root {
  --bg: #f3f1ec; --panel: #ffffff; --ink: #222a2f; --muted: #5f6a70; --line: #d8d4cb;
  --accent: #1f5f73; --accent-ink: #ffffff; --bad: #b42318;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161a1d; --panel: #1f2529; --ink: #e6e9ea; --muted: #9aa5ab; --line: #343d42;
          --accent: #6fb3c7; --accent-ink: #10181b; --bad: #f97066; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); }
header { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding: 1rem 1.5rem;
         border-bottom: 1px solid var(--line); background: var(--panel); }
header .brand { font-weight: 700; letter-spacing: .02em; margin-right: auto; text-decoration: none; color: inherit; }
header .who { color: var(--muted); font-size: .9rem; }
main { padding: 1.5rem; max-width: 1200px; margin: 0 auto; }
h1 { font-size: 1.4rem; margin: 0 0 1rem; }
a { color: var(--accent); }
button, .button { font: inherit; padding: .45rem .9rem; border-radius: 6px; border: 1px solid var(--line);
         background: var(--panel); color: var(--ink); cursor: pointer; text-decoration: none; display: inline-block; }
button.primary, .button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button:focus-visible, a:focus-visible, select:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
input, select { font: inherit; padding: .45rem .6rem; border: 1px solid var(--line); border-radius: 6px;
         background: var(--panel); color: var(--ink); width: 100%; }
label { display: grid; gap: .3rem; font-size: .95rem; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 1.25rem; }
.muted { color: var(--muted); }
.bad { color: var(--bad); }