/* =====================================================================
   Componentes reutilizables
   ===================================================================== */

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: var(--touch-min);
  padding: 0 var(--space-6);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.btn-primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border-strong); }
.btn-secondary:hover:not(:disabled) { background: var(--color-surface-alt); }
.btn-danger { background: var(--color-danger); color: var(--color-text-inverse); }
.btn-ghost { background: transparent; color: var(--color-text); }
.btn-ghost:hover:not(:disabled) { background: var(--color-surface-alt); }
.btn-lg { min-height: 64px; font-size: var(--font-size-lg); padding: 0 var(--space-8); }
.btn-block { width: 100%; }
.btn-icon { width: var(--touch-min); padding: 0; }

.btn .spin { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Encabezado de página ---------- */
.page { padding: var(--space-6); max-width: 1280px; margin: 0 auto; }
.page-header {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  flex-wrap: wrap; margin-bottom: var(--space-6);
}
.page-header .subtitle { color: var(--color-text-muted); margin-top: var(--space-1); }

/* ---------- Tarjetas ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}
.card-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

.stat-card { display: flex; flex-direction: column; gap: var(--space-2); }
.stat-card .stat-label {
  display: flex; align-items: center; gap: var(--space-2);
  color: var(--color-text-muted); font-weight: var(--font-weight-semibold); font-size: var(--font-size-sm);
  text-transform: uppercase; letter-spacing: 0.04em;
}
.stat-card .stat-value { font-size: var(--font-size-2xl); font-weight: var(--font-weight-bold); }

/* ---------- Chips (filtros de categoría) ---------- */
.chips { display: flex; gap: var(--space-2); overflow-x: auto; padding-bottom: var(--space-2); scrollbar-width: thin; }
.chip {
  flex-shrink: 0;
  min-height: 48px; padding: 0 var(--space-5);
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-border-strong);
  background: var(--color-surface);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}
.chip[aria-pressed="true"] { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-text-inverse); }

/* ---------- Insignias ---------- */
.badge {
  display: inline-flex; align-items: center; gap: var(--space-1);
  padding: 2px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold);
  background: var(--color-surface-alt); color: var(--color-text-muted);
}
.badge-success { background: var(--color-success-soft); color: var(--color-success); }
.badge-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-danger  { background: var(--color-danger-soft);  color: var(--color-danger); }
.badge-info    { background: var(--color-info-soft);    color: var(--color-info); }

/* ---------- Tarjeta de producto ---------- */
.product-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.product-card {
  display: flex; flex-direction: column; text-align: left;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden; padding: 0;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.product-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.product-card:active { transform: scale(0.98); }
.product-card.is-inactive { opacity: 0.6; }
.product-card .photo {
  aspect-ratio: 4 / 3; width: 100%; object-fit: cover;
  background: var(--color-accent-soft);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-accent); font-size: 2.5rem; font-weight: var(--font-weight-bold);
}
.product-card .body { padding: var(--space-3) var(--space-4) var(--space-4); display: flex; flex-direction: column; gap: var(--space-1); flex: 1; }
.product-card .name { font-weight: var(--font-weight-bold); font-size: var(--font-size-base); line-height: 1.25; }
.product-card .category { color: var(--color-text-muted); font-size: var(--font-size-sm); }
.product-card .row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); margin-top: auto; padding-top: var(--space-2); flex-wrap: wrap; }
.product-card .price { font-size: var(--font-size-lg); }

/* ---------- Estado vacío ---------- */
.empty-state {
  text-align: center; padding: var(--space-10) var(--space-6);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-4);
  background: var(--color-surface); border: 2px dashed var(--color-border-strong); border-radius: var(--radius-lg);
}
.empty-state .empty-icon {
  width: 80px; height: 80px; border-radius: 50%;
  background: var(--color-primary-soft); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
}
.empty-state p { max-width: 440px; color: var(--color-text-muted); }

/* ---------- Formularios ---------- */
.form { display: flex; flex-direction: column; gap: var(--space-5); }
.form-row { display: grid; gap: var(--space-4); grid-template-columns: 1fr 1fr; }
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field label { font-weight: var(--font-weight-bold); }
.field .optional { font-weight: var(--font-weight-normal); color: var(--color-text-muted); }
.field .hint { color: var(--color-text-muted); font-size: var(--font-size-sm); }
.field .error { color: var(--color-danger); font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); display: flex; gap: var(--space-1); align-items: center; }
.input, .select, .textarea {
  width: 100%;
  min-height: var(--touch-min);
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-size: var(--font-size-base);
  transition: border-color var(--transition);
}
.textarea { min-height: 96px; resize: vertical; }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.field.has-error .input, .field.has-error .select { border-color: var(--color-danger); }
.input-money { position: relative; }
.input-money::before {
  content: "$"; position: absolute; left: var(--space-4); top: 50%; transform: translateY(-50%);
  font-weight: var(--font-weight-bold); color: var(--color-text-muted); pointer-events: none;
}
.input-money .input { padding-left: 2.2rem; font-weight: var(--font-weight-bold); font-variant-numeric: tabular-nums; }

.margin-preview {
  padding: var(--space-3) var(--space-4); border-radius: var(--radius-md);
  background: var(--color-surface-alt); color: var(--color-text-muted);
}
.margin-preview.ok { background: var(--color-success-soft); color: var(--color-success); font-weight: var(--font-weight-semibold); }
.margin-preview.bad { background: var(--color-danger-soft); color: var(--color-danger); font-weight: var(--font-weight-semibold); }

details.more summary {
  cursor: pointer; min-height: 48px; display: flex; align-items: center;
  font-weight: var(--font-weight-semibold); color: var(--color-primary);
}
details.more[open] summary { margin-bottom: var(--space-4); }

/* Selector de foto */
.photo-picker { display: flex; gap: var(--space-4); align-items: center; flex-wrap: wrap; }
.photo-picker .preview {
  width: 128px; height: 128px; border-radius: var(--radius-md); object-fit: cover;
  background: var(--color-accent-soft); color: var(--color-accent);
  display: flex; align-items: center; justify-content: center; border: 2px dashed var(--color-border-strong);
}
.photo-picker .actions { display: flex; flex-direction: column; gap: var(--space-2); }

/* Interruptor */
.switch { display: inline-flex; align-items: center; gap: var(--space-3); cursor: pointer; min-height: 48px; font-weight: var(--font-weight-semibold); }
.switch input { width: 24px; height: 24px; accent-color: var(--color-primary); cursor: pointer; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(29, 35, 32, 0.45);
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-4);
  animation: fade-in 140ms ease;
}
.modal {
  width: 100%; max-width: 620px; max-height: calc(100vh - 32px);
  display: flex; flex-direction: column;
  background: var(--color-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  animation: pop-in 160ms ease;
}
.modal.modal-sm { max-width: 460px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--color-border); }
.modal-body { padding: var(--space-6); overflow-y: auto; }
.modal-footer { display: flex; gap: var(--space-3); justify-content: flex-end; padding: var(--space-4) var(--space-6); border-top: 1px solid var(--color-border); flex-wrap: wrap; }
.modal-footer .spacer { flex: 1; }
@keyframes fade-in { from { opacity: 0; } }
@keyframes pop-in { from { opacity: 0; transform: translateY(8px) scale(0.98); } }

.confirm-message { display: flex; gap: var(--space-4); align-items: flex-start; }
.confirm-message .confirm-icon { color: var(--color-warning); }

/* ---------- Avisos (toast) ---------- */
.toast-region {
  position: fixed; z-index: 60; left: 50%; bottom: var(--space-6); transform: translateX(-50%);
  display: flex; flex-direction: column; gap: var(--space-2); width: min(560px, calc(100vw - 32px));
  pointer-events: none;
}
.toast {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
  background: var(--color-text); color: var(--color-text-inverse);
  font-weight: var(--font-weight-semibold);
  animation: pop-in 180ms ease;
  pointer-events: auto;
}
.toast-success { background: var(--color-success); }
.toast-error { background: var(--color-danger); }
.toast-warning { background: var(--color-warning); }

/* ---------- Lista simple (categorías) ---------- */
.list { display: flex; flex-direction: column; gap: var(--space-2); }
.list-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-2) var(--space-3) var(--space-2) var(--space-4);
  border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface);
  min-height: 60px;
}
.list-item .grow { flex: 1; min-width: 0; }
.list-item.is-inactive .grow { color: var(--color-text-muted); text-decoration: line-through; }

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-4); }

.notice {
  display: flex; gap: var(--space-3); align-items: flex-start;
  padding: var(--space-4) var(--space-5); border-radius: var(--radius-md);
  background: var(--color-info-soft); color: var(--color-info); font-weight: var(--font-weight-semibold);
}
.notice-warning { background: var(--color-warning-soft); color: var(--color-warning); }