:root {
  --bg: #0f1115;
  --surface: #1a1d27;
  --surface-2: #262c3f;
  --border: #333a52;
  --text: #e8e9f0;
  --text-dim: #9a9db3;
  --accent: #4d97ff;
  --accent-hover: #6fadff;
  --danger: #ff5c7c;
  --danger-hover: #ff7691;
  --success: #34d399;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', Roboto, Arial, sans-serif;
}

button {
  font-family: inherit;
  cursor: pointer;
}

h1, h2, h3 {
  margin: 0 0 12px;
}

/* ---- Login page ---- */

.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px;
  width: 340px;
  text-align: center;
}

.login-logo {
  width: 180px;
  height: 180px;
  object-fit: contain;
  margin-bottom: 4px;
  border-radius: 20px;
}

.login-subtitle {
  color: var(--text-dim);
  margin-bottom: 20px;
}

.pin-dots {
  font-size: 2rem;
  letter-spacing: 8px;
  min-height: 40px;
  margin-bottom: 8px;
}

.pin-error {
  color: var(--danger);
  min-height: 20px;
  margin-bottom: 12px;
}

.pin-pad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}

.pin-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.4rem;
  border-radius: 14px;
  padding: 18px 0;
}

.pin-btn:hover {
  background: var(--border);
}

.pin-btn-secondary {
  font-size: 1rem;
  color: var(--text-dim);
}

.pin-submit {
  width: 100%;
  background: var(--accent);
  border: none;
  color: white;
  font-size: 1.2rem;
  border-radius: 14px;
  padding: 16px 0;
}

.pin-submit:hover {
  background: var(--accent-hover);
}

.pin-submit:disabled {
  opacity: 0.6;
  cursor: default;
}

/* ---- Shared app shell ---- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  gap: 20px;
  flex-wrap: wrap;
}

.brand-logo {
  height: 52px;
  width: 52px;
  object-fit: contain;
  border-radius: 10px;
  display: block;
}

.brand-logo-sidebar {
  height: 120px;
  width: 120px;
  margin: 0 auto;
  border-radius: 16px;
}

.topbar-nav {
  display: flex;
  gap: 8px;
}

.nav-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 1rem;
  text-decoration: none;
}

.nav-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.user-name {
  color: var(--text-dim);
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 1rem;
  color: white;
  background: var(--surface-2);
}

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

.btn-secondary {
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--border);
}

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

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

.btn-lg {
  padding: 18px 0;
  font-size: 1.15rem;
  width: 100%;
}

.btn-sm {
  padding: 8px 12px;
  font-size: 0.9rem;
}

.error-banner {
  background: var(--danger);
  color: white;
  text-align: center;
  padding: 12px;
  font-size: 1rem;
}

.error-banner.toast-success {
  background: var(--success);
}

main {
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.view[hidden] {
  display: none;
}

/* ---- Sale view ---- */

.sale-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.product-panel, .cart-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 14px;
}

.product-tile {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 10px;
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-height: 100px;
}

.product-tile:hover:not(:disabled) {
  border-color: var(--accent);
}

.product-tile:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.product-icon {
  font-size: 2rem;
  line-height: 1;
}

.product-name {
  font-size: 1.05rem;
  font-weight: 600;
  text-align: center;
}

.product-price {
  color: var(--accent);
}

.product-stock {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.cart-panel {
  display: flex;
  flex-direction: column;
}

.cart-items {
  flex: 1;
  min-height: 100px;
  margin-bottom: 12px;
}

.cart-empty {
  color: var(--text-dim);
}

.cart-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qty-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  width: 28px;
  height: 28px;
  border-radius: 8px;
  font-size: 1rem;
}

.cart-item-sum {
  color: var(--accent);
  min-width: 70px;
  text-align: right;
}

.cart-total {
  display: flex;
  justify-content: space-between;
  font-size: 1.2rem;
  padding: 10px 0;
  border-top: 1px solid var(--border);
  margin-bottom: 14px;
}

.today-total {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 1.6rem;
  color: var(--accent);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 20px;
  margin-bottom: 20px;
  max-width: 400px;
}

.cart-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ---- Open tabs view ---- */

.open-tabs-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.tab-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}

.tab-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.tab-card-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.tab-card-time {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.tab-card-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.tab-card-item.cancelled {
  opacity: 0.5;
  text-decoration: line-through;
}

.cancelled-label {
  font-size: 0.8rem;
  color: var(--danger);
  text-decoration: none;
}

.tab-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  gap: 10px;
  flex-wrap: wrap;
}

.tab-card-actions {
  display: flex;
  gap: 8px;
}

/* ---- Modal ---- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  width: 100%;
  max-width: 420px;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-message {
  margin-bottom: 20px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.picker-group {
  margin-bottom: 14px;
}

.picker-group-title {
  color: var(--text-dim);
  margin-bottom: 6px;
}

.picker-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.picker-item {
  min-width: 70px;
}

/* ---- Root panel ---- */

.root-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 24px;
  flex: 1;
}

.sidebar-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  text-align: left;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 1rem;
  text-decoration: none;
  display: block;
}

.sidebar-btn:hover {
  background: var(--surface-2);
  color: var(--text);
}

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

.sidebar-link {
  margin-top: 10px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.root-content {
  flex: 1;
  padding: 28px 32px;
  max-width: 1100px;
}

.root-view[hidden] {
  display: none;
}

.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.report-section {
  margin-bottom: 28px;
}

.date-filter {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.date-filter label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.date-filter input {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.95rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.data-table th, .data-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.9rem;
}

.table-icon {
  font-size: 1.4rem;
}

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

.data-table .table-total td {
  font-weight: bold;
  color: var(--accent);
}

.data-table tr.row-danger td {
  color: var(--danger);
}

.data-table tr.row-inactive td {
  opacity: 0.5;
}

.badge-danger {
  background: var(--danger);
  color: white;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 999px;
}

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

.cabin-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
}

.cabin-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.cabin-card-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.cabin-card-actions {
  display: flex;
  gap: 8px;
}

.computer-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.computer-chip {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.computer-chip.row-inactive {
  opacity: 0.5;
}

.form-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.form-input {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 1rem;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  margin-bottom: 14px;
}