:root {
  color-scheme: dark;
  --bg: #0b0d12;
  --panel: #12151c;
  --ink: #eef1f7;
  --muted: #939aab;
  --line: #2a3140;
  --acid: #b8ff2c;
  --cyan: #2ee8ff;
  --warn: #ffb020;
  --danger: #ff6b5a;
  --font: "IBM Plex Sans", "Noto Sans SC", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 13, 18, 0.94);
  backdrop-filter: blur(10px);
}

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

.brand > span {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--acid), var(--cyan));
  color: #061006;
  font-size: 0.7rem;
  font-weight: 800;
}

.brand strong {
  display: block;
  font-size: 0.95rem;
}

.brand small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tab {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.tab.active {
  border-color: var(--line);
  background: var(--panel);
  color: var(--ink);
}

.top-actions {
  display: flex;
  gap: 0.55rem;
  align-items: center;
}

.top-actions a,
.top-actions button,
.btn {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.top-actions button:hover,
.btn:hover {
  border-color: var(--acid);
  color: var(--acid);
}

main {
  padding: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.panel-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 0.9rem;
}

.panel-head h2 {
  margin: 0;
  font-size: 1.15rem;
}

.panel-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.panel-head input,
.panel-head select,
.order-card select,
.order-card input {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.5rem 0.65rem;
  background: #0a0c10;
  color: var(--ink);
  font: inherit;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.stat {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
}

.stat strong {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--mono);
  font-size: 1.35rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.split article {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  padding: 0.85rem;
}

.split h2 {
  margin: 0 0 0.7rem;
  font-size: 0.95rem;
}

.list {
  display: grid;
  gap: 0.45rem;
}

.list-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 0.2rem;
  border-bottom: 1px solid #1c2230;
  font-size: 0.88rem;
}

.list-row em {
  color: var(--warn);
  font-style: normal;
  font-family: var(--mono);
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

th,
td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid #1c2230;
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-weight: 600;
  background: #0e1118;
}

td img {
  width: 2.4rem;
  height: 2.4rem;
  object-fit: cover;
  border-radius: 6px;
  vertical-align: middle;
  margin-right: 0.5rem;
}

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

.stock-low {
  color: var(--danger);
  font-weight: 700;
}

.qty-actions {
  display: flex;
  gap: 0.35rem;
}

.qty-actions button,
.qty-actions input {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0a0c10;
  color: var(--ink);
  font: inherit;
}

.qty-actions input {
  width: 4.2rem;
  padding: 0.3rem 0.4rem;
  font-family: var(--mono);
}

.qty-actions button {
  padding: 0.3rem 0.5rem;
  cursor: pointer;
}

.orders {
  display: grid;
  gap: 0.75rem;
}

.order-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  padding: 0.9rem;
  display: grid;
  gap: 0.7rem;
}

.order-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
}

.order-top strong {
  font-family: var(--mono);
}

.badge {
  display: inline-flex;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: rgba(46, 232, 255, 0.12);
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 700;
}

.order-items {
  color: var(--muted);
  font-size: 0.86rem;
}

.order-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
  align-items: end;
}

.order-grid label {
  display: grid;
  gap: 0.3rem;
  color: var(--muted);
  font-size: 0.78rem;
}

#saveHotBtn {
  margin-top: 0.85rem;
  background: var(--acid);
  border-color: var(--acid);
  color: #061006;
}

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  margin: 0;
  padding: 0.7rem 0.95rem;
  border-radius: 10px;
  background: #152018;
  border: 1px solid rgba(184, 255, 44, 0.4);
  color: var(--acid);
  font-weight: 650;
}

@media (max-width: 900px) {
  .stats,
  .split,
  .order-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .stats,
  .split,
  .order-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-wrap: wrap;
  }
}