:root {
  --bg: #f4f5f7;
  --card-bg: #ffffff;
  --border: #e2e4e9;
  --text: #1f2430;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-light: #eef2ff;
  --good: #16a34a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar h1 { font-size: 18px; margin: 0; }

.app-version {
  font-size: 12px;
  font-weight: normal;
  color: var(--muted);
  vertical-align: middle;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.current-product-label {
  font-size: 13px;
  color: var(--muted);
}

.save-status {
  font-size: 13px;
  min-width: 0;
}
.save-status.ok { color: #2e8b57; }
.save-status.error { color: #c0392b; font-weight: 600; }

.legacy-import-banner {
  margin: 16px 24px 0;
  padding: 14px 16px;
  background: #fff7e6;
  border: 1px solid #f0c36d;
  border-radius: 8px;
}
.legacy-import-banner p { margin: 0 0 10px; }

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--muted);
  z-index: 50;
}

.layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 20px;
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: start;
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .summary-col { order: -1; }
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 18px;
}

.card h2 {
  font-size: 15px;
  margin: 0 0 14px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.field-row {
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.field-row label {
  font-size: 13px;
  color: var(--muted);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}

input[type="text"],
input[type="number"],
select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
  width: 100%;
}

input:focus, select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.hint {
  font-size: 12px;
  color: var(--muted);
  margin: 2px 0 0 0;
}

.sep {
  border: none;
  border-top: 1px solid var(--border);
  margin: 14px 0;
}

.btn {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}

.btn:hover { opacity: 0.9; }

.btn-small {
  padding: 6px 10px;
  font-size: 12px;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-danger {
  background: transparent;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.btn-danger:hover { background: #fef2f2; }

.switch {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  font-weight: normal;
  cursor: pointer;
}

.dynamic-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}

.dynamic-row {
  display: grid;
  grid-template-columns: 1fr 110px 32px;
  gap: 8px;
  align-items: center;
}

.dynamic-row .remove-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  color: var(--muted);
  height: 34px;
}

.summary-col { position: sticky; top: 80px; }

.summary-card h2 { margin-bottom: 10px; }

.breakdown {
  width: 100%;
  font-size: 13px;
  border-collapse: collapse;
  margin-bottom: 14px;
}

.breakdown td {
  padding: 5px 0;
  border-bottom: 1px dashed var(--border);
}

.breakdown td:last-child {
  text-align: right;
  font-weight: 600;
  white-space: nowrap;
}

.summary-totals {
  border-top: 1px solid var(--border);
  padding-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.summary-line {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

.summary-line.highlight {
  background: var(--accent-light);
  border-radius: 6px;
  padding: 8px 10px;
  font-weight: 600;
}

.summary-line.highlight strong { color: var(--good); }

.products-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.product-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  flex-wrap: wrap;
}

.product-row.active {
  border-color: var(--accent);
  background: var(--accent-light);
}

.product-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.product-info span {
  font-size: 12px;
  color: var(--muted);
}

.product-actions {
  display: flex;
  gap: 6px;
}

.product-actions button {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px;
  padding: 5px 9px;
  font-size: 12px;
  cursor: pointer;
}

.product-actions button:hover { background: var(--bg); }

.product-actions button[data-action="delete"] {
  color: #b91c1c;
  border-color: #fecaca;
}

.library-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}

.library-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  background: var(--bg);
}

.library-row button {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 5px;
  padding: 3px 8px;
  font-size: 11px;
  cursor: pointer;
  color: #b91c1c;
  border-color: #fecaca;
  flex-shrink: 0;
}

.library-row-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.library-row button:hover { background: #fef2f2; }

.library-row button[data-action^="edit"] {
  color: var(--text);
  border-color: var(--border);
}

.library-manager {
  margin-top: 14px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

.library-manager summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}

.library-manager[open] summary { color: var(--text); }

.inline-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}