/* ============================================================
   PicShopJR — PWA & Responsive Enhancements
   Paleta: Ocean Pastel — azules suaves
   ============================================================ */

/* ============================================================
   1. Touch-friendly: tamaños mínimos 44x44px
   ============================================================ */

/* Asegurar que todos los botones tengan tamaño táctil mínimo */
.btn,
.nav-link,
.dropdown-toggle,
.dropdown-item,
.tab-btn,
.share-tab,
.friend-card,
.product-card,
.task-card,
.checklist-item,
.modal-close,
.hamburger-btn {
  min-height: 44px;
}

/* Inputs: font-size mínimo 16px para evitar zoom en iOS */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="file"],
input[type="number"],
input[type="search"],
textarea,
select,
.input {
  font-size: 16px !important;
}

/* ============================================================
   4. Loading Indicators
   ============================================================ */

/* Spinner genérico */
.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner-lg {
  width: 40px;
  height: 40px;
  border-width: 4px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Loading overlay para acciones */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
}

.loading-overlay .loading-box {
  background: var(--bg-surface);
  border: 3px solid var(--border);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.loading-overlay .loading-box p {
  font-family: var(--font-heading);
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, var(--bg-body) 25%, var(--bg-surface) 50%, var(--bg-body) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 0;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-card {
  height: 200px;
  border: 2px solid var(--border);
}

.skeleton-text {
  height: 14px;
  margin-bottom: 8px;
  width: 80%;
}

.skeleton-text-short {
  height: 14px;
  margin-bottom: 8px;
  width: 50%;
}

/* ============================================================
   5. Offline Page
   ============================================================ */

.offline-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding: 2rem;
}

.offline-page .offline-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.offline-page h1 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.offline-page p {
  font-size: 0.7rem;
  color: var(--text-muted);
  max-width: 400px;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

/* ============================================================
   6. Pull to Refresh (sutil)
   ============================================================ */

.ptr-indicator {
  text-align: center;
  padding: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.5rem;
  color: var(--text-muted);
  display: none;
}

/* ============================================================
   7. Toast Notifications
   ============================================================ */

.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 360px;
}

.toast {
  background: var(--bg-surface);
  border: 2px solid var(--border);
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.65rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  animation: toastIn 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toast-success {
  border-color: var(--success);
}

.toast-error {
  border-color: var(--primary);
}

.toast-warning {
  border-color: var(--secondary);
}

@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ============================================================
   8. PWA Install Banner
   ============================================================ */

.pwa-install-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--bg-surface);
  border-top: 3px solid var(--primary);
  padding: 0.75rem 1rem;
  z-index: 9998;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.2);
}

.pwa-install-banner.is-visible {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pwa-install-banner .install-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.pwa-install-banner .install-text {
  flex: 1;
  font-size: 0.65rem;
  color: var(--text-primary);
  line-height: 1.4;
}

.pwa-install-banner .install-text strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.55rem;
  color: var(--primary);
  margin-bottom: 0.2rem;
}

.pwa-install-banner .install-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.3rem;
  min-width: 44px;
  min-height: 44px;
}

/* ============================================================
   9. Safe Area insets (notch)
   ============================================================ */

@supports (padding: env(safe-area-inset-bottom)) {
  .site-header {
    padding-top: env(safe-area-inset-top);
  }

  .site-footer {
    padding-bottom: env(safe-area-inset-bottom);
  }

  .pwa-install-banner {
    padding-bottom: calc(0.75rem + env(safe-area-inset-bottom));
  }
}

/* ============================================================
   10. Print Styles
   ============================================================ */

@media print {
  .site-header,
  .site-footer,
  .guest-banner,
  .btn,
  .actions-row,
  .hamburger-btn,
  .nav-overlay {
    display: none !important;
  }

  .site-main {
    padding: 0;
  }

  .container {
    width: 100%;
    max-width: none;
  }
}