:root {
  --bg: #0f1114;
  --bg-elevated: #181b20;
  --bg-input: #1e2228;
  --border: #2a3038;
  --text: #e6e8eb;
  --text-muted: #8b929a;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --success: #22c55e;
  --success-bg: rgba(34, 197, 94, 0.12);
  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.12);
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 8px;
  --radius-sm: 6px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

.header {
  padding: 2rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

.header h1 {
  margin: 0 0 0.25rem 0;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}

.config-section {
  margin-bottom: 1.5rem;
}

.config-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.config-toggle:hover {
  background: #1e2228;
  border-color: #3a424d;
}

.chevron {
  transition: transform 0.2s;
}

.config-panel {
  margin-top: 0.5rem;
  padding: 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.config-stores {
  margin-bottom: 0.5rem;
}

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

.store-row select {
  flex: 1;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.btn-store {
  padding: 0.4rem 0.65rem;
  font-size: 0.9rem;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent);
}

.btn-store:hover {
  background: rgba(59, 130, 246, 0.15);
}

.config-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.config-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

.label-note {
  font-weight: 400;
  opacity: 0.8;
}

.config-group input {
  padding: 0.5rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s;
}

.config-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.config-group input::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.search-section {
  margin-bottom: 1.5rem;
}

.search-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
}

.date-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.date-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

.date-group input {
  padding: 0.5rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.date-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.btn {
  padding: 0.5rem 1.25rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  color: white;
  background: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.filter-row {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.filter-sep {
  color: var(--text-muted);
  margin: 0 0.25rem;
}

.search-input {
  padding: 0.35rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-width: 200px;
  color: var(--text);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
}

.checkbox-label input {
  width: 1rem;
  height: 1rem;
  accent-color: var(--accent);
}

.results-section {
  min-height: 200px;
}

.results-placeholder,
.results-error {
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

/* Compact inline loading indicator */
.loading-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.loading-inline .spinner-sm {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
}

.loading-inline.fetching .spinner-sm {
  animation: spin 0.8s linear infinite;
}

.results-loading {
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.results-error .error-message {
  color: var(--error);
  font-weight: 500;
}

.results-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.summary-total { font-weight: 600; color: var(--text); }
.summary-match { color: var(--success); }
.summary-mismatch { color: var(--error); }
.summary-filter { font-style: italic; }

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

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

.results-table th,
.results-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.results-table th {
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.2);
}

.results-table tbody tr:last-child td {
  border-bottom: none;
}

.results-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.results-table tbody tr.mismatch {
  background: var(--error-bg);
}

.results-table tbody tr.mismatch:hover {
  background: rgba(239, 68, 68, 0.18);
}

.order-id {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
}

.order-erp {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.badge-synced {
  font-size: 0.7rem;
  opacity: 0.8;
  margin-left: 0.2rem;
}

.note-synced {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.sku-count {
  font-family: var(--font-mono);
  font-weight: 500;
}

.status-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 50%;
}

tr.match .status-icon {
  color: var(--success);
  background: var(--success-bg);
}

tr.mismatch .status-icon {
  color: var(--error);
  background: var(--error-bg);
}

.btn-details {
  padding: 0.35rem 0.65rem;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.btn-details:hover {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-hover);
}

.details-row td {
  padding: 0;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.details-content {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  background: rgba(0, 0, 0, 0.2);
  font-size: 0.85rem;
}

.details-col h4 {
  margin: 0 0 0.5rem 0;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.details-col ul {
  margin: 0;
  padding-left: 1.25rem;
}

.details-col li {
  font-family: var(--font-mono);
  margin-bottom: 0.25rem;
}

.details-msg p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.5;
}

@media (max-width: 700px) {
  .details-content {
    grid-template-columns: 1fr;
  }
}