:root {
  color-scheme: light dark;
  --bg: #fafaf9;
  --fg: #1c1917;
  --muted: #78716c;
  --line: #e7e5e4;
  --card: #ffffff;
  --accent: #2563eb;
  --accent-fg: #ffffff;
  --danger: #b91c1c;
  --notice: #166534;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1917;
    --fg: #f5f5f4;
    --muted: #a8a29e;
    --line: #44403c;
    --card: #292524;
    --accent: #60a5fa;
    --accent-fg: #0c0a09;
    --danger: #f87171;
    --notice: #86efac;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  max-width: 44rem;
  padding: 0 1rem;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

a { color: var(--accent); }
h1 { font-size: 1.5rem; margin: 1.5rem 0 1rem; }
h2 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; }
code { font-size: 0.9em; background: var(--line); padding: 0.1em 0.3em; border-radius: 4px; }
.muted { color: var(--muted); }

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.top form { display: flex; align-items: center; gap: 0.75rem; min-width: 0; }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); }
.who { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

footer {
  display: flex;
  gap: 1rem;
  margin: 3rem 0 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem;
}

.stack { display: flex; flex-direction: column; gap: 0.6rem; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 0.75rem; }

label { font-weight: 600; }
input[type=email], input[type=text] {
  font: inherit;
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
}
#code { letter-spacing: 0.3em; font-size: 1.3rem; }

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  background: var(--accent);
  color: var(--accent-fg);
}
button.small { padding: 0.25rem 0.6rem; font-size: 0.85rem; }
button.link { background: none; color: var(--accent); padding: 0; text-decoration: underline; }
button.link.danger, .danger { color: var(--danger); }
button.danger-button { background: var(--danger); color: var(--accent-fg); }

.error { color: var(--danger); margin: 0; }
.notice { color: var(--notice); margin: 0; }

.machines { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.75rem; }
.machine {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
}
.machine-head { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.badge {
  font-size: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 0.5rem;
  color: var(--muted);
}
.link-row { display: flex; align-items: center; gap: 0.5rem; margin: 0.5rem 0; min-width: 0; }
.machine-url { overflow-wrap: anywhere; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 0.1rem 0.75rem; margin: 0.5rem 0; font-size: 0.9rem; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; }

.empty, .confirm {
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 1rem;
}
.account { margin-top: 2rem; }
.prose li { margin-bottom: 0.5rem; }