:root {
  --p-bg-canvas: #f1f2f4;
  --p-bg-surface: #ffffff;
  --p-bg-surface-subdued: #f6f7f8;
  --p-bg-hover: #f1f3f5;
  --p-text: #1f2328;
  --p-text-subdued: #5c636a;
  --p-primary: #1a1a1a;
  --p-primary-hover: #000000;
  --p-brand-green: #16a34a;
  --p-accent: #005bd3;
  --p-critical-bg: #fee8eb;
  --p-critical-text: #8e0b21;
  --p-warning-bg: #fff1e3;
  --p-warning-text: #5e4200;
  --p-success-bg: #dcfce7;
  --p-success-text: #14532d;
  --p-info-bg: #eaf4ff;
  --p-info-text: #003a5a;
  --p-neutral-bg: #eef0f2;
  --p-neutral-text: #42474c;
  --p-radius: 14px;
  --p-radius-sm: 9px;
  --p-shadow: 0 1px 3px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.03);
  --p-shadow-elevated: 0 10px 26px rgba(15, 23, 42, 0.11), 0 2px 6px rgba(15, 23, 42, 0.05);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background: var(--p-bg-canvas);
  color: var(--p-text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "San Francisco", "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

.p-shell {
  max-width: 1220px;
  margin: 0 auto;
  padding: 18px 22px 64px;
}

.p-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.p-brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.p-brand-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: block;
  flex-shrink: 0;
}

.p-title {
  font-size: 17px;
  font-weight: 650;
  margin: 0;
  letter-spacing: -0.015em;
}

.p-subtitle {
  font-size: 12px;
  color: var(--p-text-subdued);
  margin: 2px 0 0;
}

.p-tabs {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: #e7e9ec;
  border-radius: 11px;
  margin-bottom: 16px;
  overflow-x: auto;
  width: fit-content;
  max-width: 100%;
}

.p-tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--p-text-subdued);
  font-size: 12.5px;
  font-weight: 550;
  padding: 6px 13px;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: background 0.14s ease, color 0.14s ease;
}

.p-tab:hover {
  color: var(--p-text);
}

.p-tab.is-active {
  background: var(--p-bg-surface);
  color: var(--p-text);
  font-weight: 600;
  box-shadow: var(--p-shadow);
}

.p-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

@media (max-width: 900px) {
  .p-grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .p-grid-4 {
    grid-template-columns: 1fr;
  }
}

.p-card {
  background: var(--p-bg-surface);
  border-radius: var(--p-radius);
  box-shadow: var(--p-shadow);
  padding: 16px 18px;
  margin-bottom: 16px;
  overflow: visible;
}

.p-card-subtle {
  background: var(--p-bg-surface-subdued);
  border-radius: var(--p-radius-sm);
  padding: 12px 14px;
}

.p-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.p-card-title {
  font-size: 14px;
  font-weight: 620;
  margin: 0;
}

.p-kpi-label {
  font-size: 11.5px;
  font-weight: 520;
  color: var(--p-text-subdued);
  margin-bottom: 4px;
  display: block;
}

.p-kpi-value {
  font-size: 22px;
  font-weight: 680;
  letter-spacing: -0.02em;
}

.p-btn {
  appearance: none;
  border: none;
  background: var(--p-neutral-bg);
  color: var(--p-text);
  font-size: 12.5px;
  font-weight: 560;
  padding: 7px 12px;
  border-radius: var(--p-radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: background 0.12s ease, transform 0.08s ease;
}

.p-btn:hover:not(:disabled) {
  background: #e1e4e8;
}

.p-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.p-btn-primary {
  background: var(--p-primary);
  color: #ffffff;
}

.p-btn-primary:hover:not(:disabled) {
  background: var(--p-primary-hover);
}

.p-badge {
  display: inline-flex;
  align-items: center;
  padding: 2.5px 8.5px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 580;
  white-space: nowrap;
}

.p-badge-critical {
  background: var(--p-critical-bg);
  color: var(--p-critical-text);
}

.p-badge-warning {
  background: var(--p-warning-bg);
  color: var(--p-warning-text);
}

.p-badge-success {
  background: var(--p-success-bg);
  color: var(--p-success-text);
}

.p-badge-info {
  background: var(--p-info-bg);
  color: var(--p-info-text);
}

.p-badge-neutral {
  background: var(--p-neutral-bg);
  color: var(--p-neutral-text);
}

.p-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.p-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 12.5px;
}

.p-table th {
  text-align: left;
  font-weight: 600;
  color: var(--p-text-subdued);
  padding: 9px 10px;
  background: var(--p-bg-surface-subdued);
  white-space: nowrap;
}

.p-table th:first-child {
  border-top-left-radius: 8px;
  border-bottom-left-radius: 8px;
}

.p-table th:last-child {
  border-top-right-radius: 8px;
  border-bottom-right-radius: 8px;
}

.p-table td {
  padding: 10px;
  vertical-align: middle;
}

.p-table tbody tr:nth-child(even) {
  background: rgba(246, 247, 248, 0.55);
}

.p-table tbody tr:hover {
  background: var(--p-bg-hover);
}

.p-sku-cell {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.p-thumb {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--p-bg-surface-subdued);
  object-fit: cover;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--p-text-subdued);
}

.p-input,
.p-textarea {
  width: 100%;
  border: none;
  border-radius: var(--p-radius-sm);
  padding: 7.5px 11px;
  font-size: 13px;
  font-family: inherit;
  color: var(--p-text);
  background: var(--p-bg-surface-subdued);
  transition: background 0.12s ease, box-shadow 0.12s ease;
}

.p-input:hover,
.p-textarea:hover {
  background: #eef0f3;
}

.p-input:focus,
.p-textarea:focus {
  outline: none;
  background: #ffffff;
  box-shadow: 0 0 0 2px rgba(26, 26, 26, 0.18);
}

.p-inline-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.p-filter-bar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.p-search-wrap {
  position: relative;
  flex: 1 1 220px;
  min-width: 200px;
}

.p-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--p-text-subdued);
  pointer-events: none;
}

.p-search-input {
  padding-left: 32px;
}

.p-empty {
  text-align: center;
  padding: 34px 20px;
  color: var(--p-text-subdued);
}

.p-empty h3 {
  color: var(--p-text);
  margin: 0 0 6px;
  font-size: 14.5px;
}

.p-banner {
  border-radius: var(--p-radius);
  padding: 11px 15px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.p-banner-info {
  background: var(--p-info-bg);
  color: var(--p-info-text);
}

.p-banner-warning {
  background: var(--p-warning-bg);
  color: var(--p-warning-text);
}

.p-banner-error {
  background: var(--p-critical-bg);
  color: var(--p-critical-text);
}

.p-banner-success {
  background: var(--p-success-bg);
  color: var(--p-success-text);
}

.p-math-box {
  background: var(--p-bg-surface-subdued);
  border-radius: var(--p-radius-sm);
  padding: 10px 12px;
  font-size: 12px;
  margin-top: 7px;
}

.p-meter-track {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: #e6e8eb;
  overflow: hidden;
  margin-top: 8px;
}

.p-meter-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--p-primary);
  transition: width 0.25s ease;
}

.p-meter-fill.is-warn {
  background: #d97706;
}

.p-meter-fill.is-crit {
  background: #dc2626;
}

/* Custom Dropdown Component (Zero native <select> + Mutual Exclusion + Auto-Flip) */
.p-dropdown {
  position: relative;
  display: inline-block;
  min-width: 165px;
}

.p-dropdown-trigger {
  width: 100%;
  border: none;
  border-radius: var(--p-radius-sm);
  background: var(--p-bg-surface-subdued);
  color: var(--p-text);
  padding: 7.5px 11px;
  font-size: 12.5px;
  font-weight: 540;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  cursor: pointer;
}

.p-dropdown-trigger:hover {
  background: #eef0f3;
}

.p-dropdown-menu {
  position: absolute;
  top: calc(100% + 5px);
  left: 0;
  min-width: 100%;
  max-width: 340px;
  max-height: 240px;
  overflow-y: auto;
  background: var(--p-bg-surface);
  border-radius: 11px;
  box-shadow: var(--p-shadow-elevated);
  z-index: 80;
  padding: 5px;
  display: none;
}

.p-dropdown-menu.is-flipped-up {
  top: auto;
  bottom: calc(100% + 5px);
}

.p-dropdown-menu.is-aligned-right {
  left: auto;
  right: 0;
}

.p-dropdown.is-open .p-dropdown-menu {
  display: block;
}

.p-dropdown-item {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  padding: 7px 10px;
  border-radius: 7px;
  font-size: 12.5px;
  color: var(--p-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.p-dropdown-item:hover {
  background: var(--p-bg-surface-subdued);
}

.p-dropdown-item.is-selected {
  background: var(--p-neutral-bg);
  font-weight: 600;
}