:root {
  color-scheme: light;
  --background: #f7f7f7;
  --card: #ffffff;
  --ink: #111111;
  --muted: #6b6b6b;
  --line: #d8d8d8;
  --primary: #222222;
  --primary-text: #ffffff;
  --secondary: #e8e8e8;
  --danger: #3d3d3d;
  --danger-background: #eeeeee;
  --focus: #8a8a8a;
  --success: #2f2f2f;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 300;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--background);
  color: var(--ink);
  font-weight: 300;
}

.app-header {
  align-items: center;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  padding: calc(16px + env(safe-area-inset-top)) 16px 16px;
  position: sticky;
  top: 0;
  z-index: 10;
}

h1, h2, p { margin: 0; }
h1 {
  font-size: 1.6rem;
  font-weight: 700;
}
h2 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
}

main {
  display: grid;
  gap: 14px;
  margin: 0 auto;
  max-width: 780px;
  padding: 14px 14px calc(32px + env(safe-area-inset-bottom));
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 8px 20px rgb(0 0 0 / 0.04);
  padding: 16px;
}

.eyebrow {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow span {
  letter-spacing: normal;
  text-transform: none;
}

.segmented {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

button {
  background: var(--primary);
  border: 0;
  border-radius: 14px;
  color: var(--primary-text);
  cursor: pointer;
  font: inherit;
  font-weight: 300;
  min-height: 48px;
  padding: 12px 16px;
}

button.secondary {
  background: var(--secondary);
  color: var(--ink);
}

button.selected {
  outline: 3px solid var(--focus);
}

button.danger {
  background: var(--danger-background);
  color: var(--danger);
}

input, select {
  border: 1px solid var(--line);
  border-radius: 12px;
  accent-color: var(--focus);
  background: var(--card);
  color: var(--ink);
  caret-color: var(--ink);
  font: inherit;
  font-weight: 300;
  min-height: 46px;
  padding: 11px 12px;
  width: 100%;
}

input:focus, select:focus {
  outline: 3px solid var(--focus);
}

.other-action-field {
  margin-top: 12px;
}

label {
  color: var(--muted);
  display: grid;
  font-size: 0.86rem;
  font-weight: 300;
  gap: 6px;
}

.field-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wide { grid-column: 1 / -1; }

.section-heading, .lookup-row {
  align-items: center;
  display: flex;
  gap: 10px;
  justify-content: space-between;
}

.item-rows {
  display: grid;
  gap: 12px;
}

.add-item-section-button {
  margin-top: 12px;
  width: 100%;
}

.item-row {
  border: 1px solid var(--line);
  border-radius: 14px;
  display: grid;
  gap: 10px;
  padding: 12px;
}

.item-fields {
  display: grid;
  gap: 10px;
  grid-template-columns: 2fr 0.8fr 0.8fr 1fr;
}

.item-meta {
  align-items: center;
  color: var(--muted);
  display: flex;
  font-size: 0.82rem;
  gap: 8px;
  justify-content: space-between;
}

.status {
  color: var(--muted);
  margin-top: 10px;
  min-height: 1.25rem;
}

.status.error { color: var(--danger); }
.status.success { color: var(--success); }

.lookup-results {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.lookup-item {
  border-top: 1px solid var(--line);
  padding-top: 8px;
}

.lookup-summary {
  color: var(--muted);
  font-weight: 300;
}

@media (max-width: 640px) {
  .field-grid, .item-fields, .segmented {
    grid-template-columns: 1fr;
  }

  .section-heading, .lookup-row, .item-meta {
    align-items: stretch;
    flex-direction: column;
  }
}