* {
  box-sizing: border-box;
}

:root {
  --page: #f4f6f5;
  --surface: #ffffff;
  --surface-muted: #eef2f0;
  --ink: #0b130f;
  --muted: #6c7e75;
  --line: #e9efef;
  --brand: #072f1f;
  --brand-soft: #174f2d;
  --accent: #d97706;
  --success: #15803d;
  --success-soft: #dcfce7;
  --danger: #b91c1c;
  --danger-soft: #fee2e2;
  --warning: #a16207;
  --warning-soft: #fef3c7;
  --info: #1d4ed8;
  --info-soft: #dbeafe;
  --sidebar: #051c12;
  --sidebar-ink: #f3faf6;
  --radius-control: 0.5rem;
  --radius-card: 1rem;
  --shadow-soft: 0 10px 30px rgba(11, 19, 15, 0.04);
  --ring: 0 0 0 3px rgba(23, 79, 45, 0.2);
  font-size: 16px;
}

body {
  margin: 0;
  padding: 1.5rem;
  background: var(--page);
  color: var(--ink);
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: var(--brand-soft);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.page {
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
}

.lesson-nav {
  margin: 0 0 1.5rem;
  padding: 0.75rem;
  background: var(--surface-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
}

.lesson-nav a {
  flex: 1 1 8rem;
  padding: 0.55rem 0.7rem;
  background: var(--surface);
  border: 1px solid #a9bdaf;
  border-radius: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
}

.lesson-nav a:hover,
.lesson-nav a[aria-current="page"] {
  background: var(--brand-soft);
  color: #ffffff;
}

.page-header {
  margin: 0 0 1.5rem;
  padding: 2rem;
  background: var(--brand);
  border-radius: var(--radius-card);
  color: #ffffff;
}

.page-header h1,
.page-header p {
  margin: 0;
}

.page-header p {
  margin-top: 0.5rem;
  color: #dceade;
}

.panel,
.panel-alt {
  margin: 0 0 1.25rem;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
}

.panel-alt {
  background: var(--surface-muted);
}

.panel h2,
.panel-alt h2,
.panel h3 {
  margin: 0 0 0.5rem;
  color: var(--brand-soft);
}

.panel > p,
.panel-alt > p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.btn,
button {
  font: inherit;
  cursor: pointer;
}

.btn,
.actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0.5rem 0.9rem;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  background: var(--brand-soft);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

.btn-secondary {
  background: var(--surface);
  border-color: #789383;
  color: var(--ink);
}

.btn-sm {
  min-height: 2rem;
  padding: 0.3rem 0.65rem;
  font-size: 0.85rem;
}

.field {
  margin: 0 0 1rem;
}

.field label,
.field-label {
  display: block;
  margin: 0 0 0.35rem;
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 2.6rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid #789383;
  border-radius: var(--radius-control);
  background: #ffffff;
  font: inherit;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  box-shadow: var(--ring);
  border-color: var(--brand-soft);
}

.help {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Tables */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table th,
.table td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.table thead th {
  background: var(--surface-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.table-striped tbody tr:nth-child(even) {
  background: #f7faf8;
}

.table-hover tbody tr:hover {
  background: #e8f2ec;
}

.table-bordered th,
.table-bordered td {
  border: 1px solid var(--line);
}

.table-sm th,
.table-sm td {
  padding: 0.45rem 0.6rem;
  font-size: 0.88rem;
}

.table-demo-stack {
  display: grid;
  gap: 1.25rem;
}

/* Status + toolbar */
.status-pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--surface-muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.status-published {
  background: var(--success-soft);
  color: var(--success);
}

.status-draft {
  background: var(--warning-soft);
  color: var(--warning);
}

.status-archived {
  background: var(--danger-soft);
  color: var(--danger);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0 0 0.85rem;
}

.toolbar-search {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: end;
}

.toolbar-search .field {
  margin: 0;
  min-width: 14rem;
}

.pagination-chrome {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.85rem;
}

.pagination-chrome ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pagination-chrome a,
.pagination-chrome span {
  display: inline-flex;
  min-width: 2rem;
  min-height: 2rem;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  text-decoration: none;
  font-weight: 700;
}

.pagination-chrome [aria-current="page"] {
  background: var(--brand-soft);
  border-color: var(--brand-soft);
  color: #ffffff;
}

.row-actions {
  position: relative;
  display: inline-block;
}

.row-actions summary {
  list-style: none;
  cursor: pointer;
  font-weight: 800;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: var(--surface);
}

.row-actions summary::-webkit-details-marker {
  display: none;
}

.row-actions[open] summary {
  box-shadow: var(--ring);
}

.menu-panel {
  position: absolute;
  right: 0;
  z-index: 2;
  margin: 0.25rem 0 0;
  padding: 0.35rem;
  min-width: 8rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  box-shadow: var(--shadow-soft);
}

.menu-panel a {
  display: block;
  padding: 0.4rem 0.55rem;
  text-decoration: none;
  border-radius: 0.3rem;
  color: var(--ink);
}

.menu-panel a:hover {
  background: var(--surface-muted);
}

.menu-panel .danger {
  color: var(--danger);
}

/* Shell */
.shell {
  display: grid;
  grid-template-columns: 14rem 1fr;
  min-height: 28rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--surface);
}

.shell-sidebar {
  padding: 1rem;
  background: var(--sidebar);
  color: var(--sidebar-ink);
}

.shell-brand {
  margin: 0 0 1rem;
  font-weight: 800;
}

.shell-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.shell-nav a {
  color: #cfe3d7;
  text-decoration: none;
  padding: 0.45rem 0.55rem;
  border-radius: 0.4rem;
}

.shell-nav a[aria-current="page"],
.shell-nav a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.shell-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.shell-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--line);
}

.shell-topbar h2 {
  margin: 0;
  font-size: 1.15rem;
}

.shell-content {
  padding: 1.1rem;
}

/* Add product */
.compose-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(14rem, 18rem);
  gap: 1.25rem;
  align-items: start;
}

.compose-card {
  padding: 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
}

.input-group {
  display: flex;
  width: 100%;
  align-items: stretch;
}

.input-group input {
  flex: 1 1 auto;
  width: 1%;
  min-width: 0;
  margin: 0;
  border-radius: 0;
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: 0.6rem 0.8rem;
  background: var(--surface-muted);
  border: 1px solid #789383;
  color: var(--muted);
  white-space: nowrap;
}

.input-group > .input-group-text:first-child {
  border-radius: var(--radius-control) 0 0 var(--radius-control);
  border-right-width: 0;
}

.input-group > input:not(:first-child) {
  border-left-width: 0;
}

.input-group > input:last-child {
  border-radius: 0 var(--radius-control) var(--radius-control) 0;
}

.input-group > .input-group-text:last-child {
  border-radius: 0 var(--radius-control) var(--radius-control) 0;
  border-left-width: 0;
}

.input-group > input:not(:first-child):not(:last-child) {
  border-radius: 0;
}

.dropzone {
  display: grid;
  place-items: center;
  gap: 0.35rem;
  padding: 1.5rem;
  border: 2px dashed #789383;
  border-radius: var(--radius-card);
  background: var(--surface-muted);
  text-align: center;
}

.dropzone input[type="file"] {
  width: auto;
}

.shipping-grid {
  display: grid;
  gap: 0.75rem;
}

.shipping-card {
  display: block;
  margin: 0;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
}

.shipping-card:has(input:checked) {
  border-color: var(--brand-soft);
  box-shadow: var(--ring);
}

.stock-table {
  width: 100%;
  border-collapse: collapse;
}

.stock-table th,
.stock-table td {
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

/* Entity detail */
.detail-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.detail-card {
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
}

.detail-card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}

.detail-card dl {
  margin: 0;
}

.detail-card dt {
  color: var(--muted);
  font-size: 0.85rem;
}

.detail-card dd {
  margin: 0 0 0.55rem;
  font-weight: 600;
}

.product-cell {
  display: flex;
  gap: 0.65rem;
  align-items: center;
}

.product-thumb {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.35rem;
  background: #c9dcd1;
  flex-shrink: 0;
}

@media (max-width: 52rem) {
  .shell,
  .compose-layout {
    grid-template-columns: 1fr;
  }
}