/* ---------- Reset e base ---------- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  font-size: 15px;
  line-height: 1.5;
}
h1, h2, h3 { margin: 0 0 var(--space-3); font-weight: 600; color: var(--color-text); }
h1 { font-size: 2rem; color: var(--color-primary); }
h2 { font-size: 1.25rem; }
a { color: var(--color-primary); }
table { font-variant-numeric: tabular-nums; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  background: var(--color-input-bg);
  color: var(--color-text-body);
  transition: opacity 0.15s ease;
}
.btn:hover { opacity: 0.85; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn-accent { background: var(--color-accent); color: var(--color-text-inverse); }
.btn-ghost { background: transparent; color: var(--color-text-muted); }
.btn-danger { background: var(--color-danger); color: var(--color-text-inverse); }
.btn-block { width: 100%; }

/* ---------- Formulários ---------- */
label { display: block; margin-bottom: var(--space-3); font-size: 0.9rem; font-weight: 500; color: var(--color-text-body); }
input, select {
  display: block;
  width: 100%;
  margin-top: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-input-bg);
  background: var(--color-input-bg);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
}
input:focus, select:focus, button:focus, a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

/* ---------- Alertas ---------- */
.alert {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
  font-size: 0.9rem;
}
.alert-danger { background: #FBEAE8; color: #A6362B; }
.alert-success { background: #E8F8EE; color: #1E8449; }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 2px var(--space-2);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-primary { background: #E2ECEF; color: var(--color-primary); }
.badge-success { background: #E8F8EE; color: #1E8449; }
.badge-danger { background: #FBEAE8; color: #A6362B; }
.badge-muted { background: #F1F2F6; color: var(--color-text-muted); }

/* ---------- Cartões e tabelas ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}
.table { width: 100%; border-collapse: collapse; background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); border: 1px solid var(--color-border); }
.table th, .table td { text-align: left; padding: var(--space-3); border-bottom: 1px solid var(--color-border); }
.table th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-text-muted); font-weight: 600; }

/* ---------- Login ---------- */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--color-bg); }
.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--color-surface);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.login-card h1 { color: var(--color-primary); text-align: center; }

/* ---------- Backoffice ---------- */
.backoffice-layout { display: flex; height: 100vh; overflow: hidden; }
.sidebar {
  width: 275px;
  height: 100%;
  flex-shrink: 0;
  overflow-y: auto;
  background: var(--color-surface);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  padding: var(--space-4) var(--space-3);
  border-right: 1px solid var(--color-border);
}
.sidebar-brand { font-weight: 700; font-size: 1.1rem; padding: 0 var(--space-3) var(--space-4); color: var(--color-primary); }
.sidebar-nav { display: flex; flex-direction: column; flex: 1; gap: 2px; }
.sidebar-footer { padding: var(--space-3); font-size: 0.85rem; border-top: 1px solid var(--color-border); color: var(--color-text-muted); }
.sidebar-footer a { color: var(--color-primary); margin-left: var(--space-2); }
[x-cloak] { display: none !important; }

.backoffice-content { flex: 1; padding: var(--space-5); overflow-y: auto; height: 100%; }

/* ---------- Funcionalidades de IA (leitura de facturas, assistente) ---------- */
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: var(--space-2);
}
.ai-feature-card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  background: linear-gradient(135deg, #EEF5FB 0%, #EFFBF2 100%);
  border: 1px solid transparent;
}
.ai-feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1.5px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.ai-scanning {
  position: relative;
  height: 5px;
  border-radius: 3px;
  background: rgba(34, 82, 116, 0.1);
  overflow: hidden;
  margin-top: var(--space-3);
}
.ai-scanning::after {
  content: '';
  position: absolute;
  top: 0; left: -40%; height: 100%; width: 40%;
  border-radius: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  animation: ai-scan 1.3s infinite ease-in-out;
}
@keyframes ai-scan {
  0% { left: -40%; }
  100% { left: 100%; }
}
.ai-sparkle { display: inline-block; animation: ai-sparkle-spin 2.2s infinite ease-in-out; }
@keyframes ai-sparkle-spin {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.25) rotate(15deg); }
}

/* Link do Assistente na sidebar — destacado mesmo em repouso, não só ao passar o rato */
.sidebar-link-ai {
  background: linear-gradient(135deg, rgba(34,82,116,0.08), rgba(34,178,72,0.12));
  font-weight: 600;
  color: var(--color-primary) !important;
}
.sidebar-link-ai:hover { background: linear-gradient(135deg, rgba(34,82,116,0.14), rgba(34,178,72,0.18)); }
.sidebar-link-ai.active { background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); color: white !important; }

/* Botão flutuante do Assistente — visível em qualquer página do backoffice */
.ai-fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(21, 29, 72, 0.28);
  z-index: 50;
  animation: ai-fab-pulse 2.6s infinite;
}
.ai-fab:hover { transform: scale(1.08); }
@keyframes ai-fab-pulse {
  0%, 100% { box-shadow: 0 6px 20px rgba(21, 29, 72, 0.28), 0 0 0 0 rgba(34, 178, 72, 0.4); }
  50% { box-shadow: 0 6px 20px rgba(21, 29, 72, 0.28), 0 0 0 10px rgba(34, 178, 72, 0); }
}

/* ---------- Barra de ferramentas de lista (pesquisa + adicionar) ---------- */
.list-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.list-search {
  flex: 1;
  max-width: 420px;
  background: var(--color-input-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  padding: 0 var(--space-3);
}
.list-search input {
  border: none;
  background: transparent;
  margin: 0;
  padding: var(--space-2) 0;
}
.list-search input:focus { outline: none; }

/* ---------- Ícones de acção na tabela ---------- */
.row-actions { display: flex; gap: var(--space-2); }
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.15s ease, color 0.15s ease;
}
.icon-btn:hover { background: var(--color-input-bg); }
.icon-btn-edit:hover { color: var(--color-primary); }
.icon-btn-delete:hover { color: var(--color-danger); }

/* ---------- Paginação ---------- */
.pagination-bar { display: flex; justify-content: space-between; align-items: center; margin-top: var(--space-3); color: var(--color-text-muted); font-size: 0.85rem; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(21, 29, 72, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: var(--space-4);
}
.modal-panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-panel h2 { color: var(--color-text); margin-bottom: var(--space-1); }
.modal-subtitle { color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: var(--space-4); }
.modal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--space-4); }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--space-3); margin-top: var(--space-4); }

.sidebar-icon { font-size: 0.5rem; opacity: 0.6; margin-right: var(--space-2); }
.sidebar-link {
  display: flex;
  align-items: center;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-3) var(--space-3);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-md);
}
.sidebar-link:hover { background: var(--color-input-bg); color: var(--color-text); }
.sidebar-link.active {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: 600;
}
.sidebar-group { border: none; }
.sidebar-group-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-3);
  font-size: 0.95rem;
  font-weight: 500;
  list-style: none;
  border-radius: var(--radius-md);
}
.sidebar-group-label::-webkit-details-marker { display: none; }
.sidebar-group-label:hover { background: var(--color-input-bg); color: var(--color-text); }
.sidebar-group[open] .sidebar-group-label { color: var(--color-primary); }
.sidebar-sublink {
  display: block;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-3) var(--space-2) calc(var(--space-4) + var(--space-3));
  font-size: 0.88rem;
  border-radius: var(--radius-md);
}
.sidebar-sublink:hover { background: var(--color-input-bg); color: var(--color-text); }
.sidebar-sublink.active {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

/* ---------- Ponto de Venda ---------- */
.pos-page { background: var(--color-bg-pos); color: var(--color-text-inverse); min-height: 100vh; }
.pos-error { max-width: 480px; margin: var(--space-6) auto; text-align: center; }
.pos-session-page { max-width: 480px; margin: var(--space-6) auto; padding: 0 var(--space-4); }
.pos-session-page h1 { text-align: center; margin-bottom: var(--space-4); }
.pos-session-page .card { background: var(--color-surface-pos); border: 1px solid var(--color-border-pos); color: var(--color-text-inverse); }
.pos-session-page label { color: rgba(247,245,240,0.8); }
.pos-session-page input, .pos-session-page select { background: var(--color-bg-pos); color: var(--color-text-inverse); border-color: var(--color-border-pos); }
.pos-session-summary p { margin: var(--space-1) 0; }
.pos-layout { display: flex; flex-direction: column; height: 100vh; }
.pos-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-pos);
}
.pos-header h1 { margin: 0; font-size: 1.1rem; flex-shrink: 0; }
.pos-header-user { display: flex; align-items: center; gap: var(--space-2); font-size: 0.85rem; flex-shrink: 0; }
.pos-header-user a {
  color: rgba(247,245,240,0.85);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--color-border-pos);
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.pos-header-user a:hover { border-color: var(--color-accent); color: var(--color-accent); background: rgba(34,178,72,0.08); }
.pos-header-logout:hover { border-color: var(--color-danger) !important; color: var(--color-danger) !important; background: rgba(180,28,28,0.08) !important; }

.pos-main { flex: 1; display: flex; overflow: hidden; }
.pos-products { flex: 1; padding: var(--space-4); overflow-y: auto; }
.pos-search {
  background: var(--color-surface-pos);
  border: 1px solid var(--color-border-pos);
  color: var(--color-text-inverse);
  margin-bottom: var(--space-4);
}
.pos-category-pills { display: flex; gap: var(--space-2); flex-wrap: wrap; margin: var(--space-2) 0 var(--space-3); }
.pos-category-pill {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--color-border-pos);
  background: transparent;
  color: rgba(247,245,240,0.75);
  font-size: 0.85rem;
  cursor: pointer;
}
.pos-category-pill:hover { border-color: var(--color-accent); }
.pos-category-pill.active { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-primary-dark); font-weight: 600; }

.pos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: var(--space-3); }
.pos-product-card {
  position: relative;
  background: var(--color-surface-pos);
  border: 1px solid var(--color-border-pos);
  border-radius: var(--radius-md);
  min-height: 90px;
}
.pos-product-card:not(.pos-product-card-disabled):hover { border-color: var(--color-accent); }
.pos-product-card-disabled { opacity: 0.5; }
.pos-product-card-info {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.08);
  color: rgba(247,245,240,0.75);
  font-size: 0.8rem;
  cursor: pointer;
  z-index: 2;
}
.pos-product-card-info:hover { background: var(--color-accent); color: var(--color-primary-dark); }
.pos-product-card-body {
  width: 100%;
  height: 100%;
  background: transparent;
  border: none;
  padding: var(--space-3);
  color: var(--color-text-inverse);
  cursor: pointer;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.pos-product-card-body:disabled { cursor: not-allowed; }
.pos-product-name { font-weight: 600; font-size: 0.95rem; }
.pos-product-price { font-family: var(--font-mono); color: var(--color-accent); }
.pos-product-stock { font-size: 0.75rem; color: rgba(247,245,240,0.6); }
.pos-stock-empty { color: var(--color-danger); }

.pos-cart {
  width: 340px;
  background: var(--color-surface-pos);
  border-left: 1px solid var(--color-border-pos);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
}
.pos-cart-items { flex: 1; overflow-y: auto; margin-bottom: var(--space-3); }
.pos-cart-empty { color: rgba(247,245,240,0.5); font-size: 0.9rem; }
.pos-cart-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border-pos);
  font-size: 0.9rem;
}
.pos-cart-qty { display: flex; align-items: center; gap: var(--space-1); font-family: var(--font-mono); }
.pos-cart-qty button {
  width: 24px; height: 24px; border-radius: var(--radius-sm); border: none;
  background: rgba(255,255,255,0.1); color: var(--color-text-inverse); cursor: pointer;
}
.pos-cart-total {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-border-pos);
  color: var(--color-accent);
}
.pos-payment-label { color: rgba(247,245,240,0.8); }
.pos-payment-select { background: var(--color-bg-pos); color: var(--color-text-inverse); border-color: var(--color-border-pos); }
.btn-charge { margin-top: 0; padding: var(--space-3); font-size: 1.05rem; }

.pos-payment-block { border-top: 1px solid var(--color-border-pos); padding-top: var(--space-3); margin-top: var(--space-2); }
.pos-payment-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-1); }
.pos-payment-line { display: flex; gap: var(--space-2); margin-bottom: var(--space-2); align-items: center; }
.pos-payment-line-amount { width: 100px; background: var(--color-bg-pos); color: var(--color-text-inverse); border-color: var(--color-border-pos); }
.pos-payment-remaining { font-size: 0.85rem; font-family: var(--font-mono); margin-top: var(--space-1); }
.pos-payment-remaining-off { color: var(--color-danger); }
.pos-payment-remaining-ok { color: var(--color-success); }

/* ---------- Cliente ---------- */
.pos-customer { margin-bottom: var(--space-3); padding-bottom: var(--space-3); border-bottom: 1px solid var(--color-border-pos); }
.pos-field-label { color: rgba(247,245,240,0.6); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: var(--space-1); }
.pos-customer-row { display: flex; gap: var(--space-2); }
.pos-customer-new-btn { white-space: nowrap; padding: var(--space-2) var(--space-3); }
.pos-new-customer { display: flex; flex-direction: column; gap: var(--space-2); }
.pos-new-customer input { background: var(--color-bg-pos); color: var(--color-text-inverse); border-color: var(--color-border-pos); }
.pos-new-customer-actions { display: flex; gap: var(--space-2); }

/* ---------- Desconto/Imposto/Totais — barra horizontal por baixo dos
   produtos (não no painel do carrinho), para nunca ficarem escondidos
   a 100% de zoom quando o carrinho tem muitos itens. ---------- */
.pos-discount-tax-bar {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-pos);
  flex-wrap: wrap;
}
.pos-dt-field { flex: 1; min-width: 200px; }
.pos-discount-row { display: flex; gap: var(--space-2); }
.pos-discount-type { flex: 1; }
.pos-discount-value { width: 100px; background: var(--color-bg-pos); color: var(--color-text-inverse); border-color: var(--color-border-pos); }
.pos-dt-totals { min-width: 220px; }
.pos-totals-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: rgba(247,245,240,0.7);
  padding: 2px 0;
  font-family: var(--font-mono);
}
.pos-totals-row-grand {
  border-top: 1px solid var(--color-border-pos);
  margin-top: 4px;
  padding-top: 6px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-accent);
}

/* ---------- Selector de loja (cabeçalho) ---------- */
.pos-location-picker { display: flex; align-items: center; gap: var(--space-2); }
.pos-location-picker .pos-payment-select { width: auto; min-width: 160px; }
.pos-location-fixed { color: rgba(247,245,240,0.7); font-size: 0.9rem; }

/* ---------- Acções e Hold Order ---------- */
.pos-actions { display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-3); }
.pos-hold-btn { border: 1px solid var(--color-border-pos); }

.pos-held-orders { display: flex; gap: var(--space-2); overflow-x: auto; flex: 1; }
.pos-held-chip {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: var(--space-1) var(--space-3);
  background: rgba(232, 163, 61, 0.15);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  color: var(--color-text-inverse);
  font-size: 0.8rem;
  cursor: pointer;
  white-space: nowrap;
}
.pos-held-chip:hover { background: rgba(232, 163, 61, 0.3); }
.pos-held-count { font-size: 0.7rem; opacity: 0.7; }