:root {
  color-scheme: light dark;
  --fg: #1a1a1a;
  --bg: #fafafa;
  --border: #ddd;
  --accent: #3a6ea5;
  --ok: #1a7a3c;
  --fail: #b3261e;
  --warn: #a15c00;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8e8e8;
    --bg: #1a1a1a;
    --border: #3a3a3a;
    --accent: #7aa7d9;
    --ok: #4caf7d;
    --fail: #e5776e;
    --warn: #e0a54e;
  }
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, sans-serif;
  color: var(--fg);
  background: var(--bg);
  margin: 0;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--fg);
}

.logout {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logout button {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  color: var(--fg);
}

.auth-form, .upload-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 360px;
  margin: 1rem 0 1.5rem;
}

.auth-form label, .upload-form label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

input, button {
  font-size: 1rem;
  padding: 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}

button {
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.6rem;
}

.error {
  color: var(--fail);
}

.ok { color: var(--ok); font-weight: 600; }

.delete-form { display: inline; margin-left: 0.5rem; }

.btn-small {
  padding: 0.2rem 0.5rem;
  font-size: 0.8rem;
}

.btn-danger { background: var(--fail); }
.fail { color: var(--fail); font-weight: 600; }
.warn { color: var(--warn); }

table.builds {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
}

table.builds th, table.builds td {
  text-align: left;
  padding: 0.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.site-footer {
  text-align: center;
  padding: 1rem;
  border-top: 1px solid var(--border);
  color: var(--fg);
  opacity: 0.6;
  font-size: 0.85rem;
}