:root {
  color-scheme: light dark;
  --border: #d9dde3;
  --bg-alt: #f6f7f9;
  --danger: #c0392b;
  --danger-bg: #fdecea;
  --text-muted: #6b7280;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 2rem 1.5rem 4rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #1a1a1a;
  background: #fff;
}

main {
  max-width: 1400px;
  margin: 0 auto;
}

.table-scroll {
  overflow-x: auto;
}

h1 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
}

.subtitle {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 60ch;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 2px solid var(--border);
  background: var(--bg-alt);
  white-space: nowrap;
}

tbody td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

tbody tr.saving {
  opacity: 0.5;
}

.empty {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem 0;
}

.error-msg {
  color: var(--danger);
  background: var(--danger-bg);
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
  font-size: 0.82rem;
  display: inline-block;
  max-width: 32ch;
}

.field-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(150px, 1fr));
  gap: 0.5rem 0.75rem;
  min-width: 340px;
}

.field-item {
  display: flex;
  flex-direction: column;
}

.field-input {
  width: 100%;
  min-width: 0;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.85rem;
}

.field-name {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 4px;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  background: #1a1a1a;
  color: #fff;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.status {
  margin-bottom: 1rem;
  padding: 0.6rem 0.9rem;
  border-radius: 4px;
  font-size: 0.85rem;
}

.status.ok {
  background: #eafaf0;
  color: #1e7a3d;
}

.status.err {
  background: var(--danger-bg);
  color: var(--danger);
}

@media (prefers-color-scheme: dark) {
  body {
    background: #14161a;
    color: #e8e8e8;
  }
  thead th {
    background: #1d2026;
    border-bottom-color: #2c303a;
  }
  tbody td {
    border-bottom-color: #2c303a;
  }
  .field-input {
    background: #1d2026;
    color: #e8e8e8;
    border-color: #2c303a;
  }
  button {
    background: #e8e8e8;
    color: #14161a;
  }
}