/* ===== Theme ===== */
[data-theme="dark"] {
  --navy: #0a1628;
  --navy-light: #132240;
  --white: #0f1724;
  --gray-100: #1a2332;
  --gray-200: #2a3544;
  --gray-400: #94a3b8;
  --gray-600: #cbd5e1;
  --text: #e2e8f0;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] body {
  background: #0a1018;
  color: var(--text);
}

[data-theme="dark"] .site-header,
[data-theme="dark"] .ecommerce-card,
[data-theme="dark"] .admin-panel,
[data-theme="dark"] .admin-inventory,
[data-theme="dark"] .filter-toolbar,
[data-theme="dark"] .page-card {
  background: #131b28;
  border-color: #2a3544;
}

[data-theme="dark"] .product-name,
[data-theme="dark"] .modal-info h2,
[data-theme="dark"] .section-header h2 {
  color: #f1f5f9;
}

/* ===== Sticky Header ===== */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 200;
  border-bottom: 1px solid rgba(10, 22, 40, 0.06);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(10, 22, 40, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 24px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.nav {
  display: flex;
  gap: 28px;
}

.nav-link {
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--gray-600);
  transition: color 0.2s;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--cyan-dark);
}

.nav-search {
  display: flex;
  align-items: center;
  background: var(--gray-100);
  border-radius: 50px;
  padding: 4px 4px 4px 16px;
  border: 1px solid var(--gray-200);
  min-width: 200px;
}

.nav-search input {
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.88rem;
  outline: none;
  width: 140px;
  color: inherit;
}

.nav-search button {
  border: none;
  background: var(--navy);
  color: white;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.85rem;
}

.theme-toggle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--gray-200);
  background: var(--gray-100);
  cursor: pointer;
  font-size: 1.1rem;
  transition: transform 0.2s;
}

.theme-toggle:hover {
  transform: scale(1.08);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  transition: 0.3s;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 16px 24px 24px;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
}

.mobile-nav:not([hidden]) {
  display: flex;
}

@media (min-width: 901px) {
  .mobile-nav,
  .mobile-nav:not([hidden]) {
    display: none !important;
  }
}

.mobile-nav a {
  padding: 14px 0;
  font-weight: 500;
  border-bottom: 1px solid var(--gray-100);
}

.mobile-call {
  margin-top: 12px;
  text-align: center;
  background: var(--navy) !important;
  color: white !important;
  border-radius: 10px;
  padding: 14px !important;
}

/* ===== Page Loader ===== */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease;
}

.page-loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Skeleton ===== */
.skeleton {
  background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: 8px;
}

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

.skeleton-image { height: 260px; border-radius: 0; }
.skeleton-text { height: 16px; margin-bottom: 10px; }
.skeleton-text.short { width: 60%; }
.skeleton-text.medium { width: 85%; height: 48px; }
.skeleton-btn { height: 44px; margin-top: 12px; }

/* ===== Fade animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Filters ===== */
.filter-toolbar {
  background: var(--white);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
}

.filter-row {
  display: grid;
  gap: 16px;
  margin-bottom: 16px;
}

.filter-row-main {
  grid-template-columns: 2fr repeat(3, 1fr);
}

.filter-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.filter-group input,
.filter-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.9rem;
  background: var(--gray-100);
  color: inherit;
}

.filter-group input[type="range"] {
  padding: 0;
  accent-color: var(--cyan-dark);
}

.filter-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 8px;
  border-top: 1px solid var(--gray-200);
}

.filter-count {
  font-weight: 600;
  color: var(--navy);
  font-size: 0.9rem;
}

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  flex: 1;
}

.filter-tag {
  background: rgba(0, 212, 255, 0.12);
  color: var(--cyan-dark);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
}

.btn-clear-filters {
  border: none;
  background: none;
  color: var(--gray-600);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  text-decoration: underline;
}

/* ===== Premium Footer ===== */
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
}

.footer-brand strong {
  display: block;
  font-size: 1rem;
  line-height: 1.4;
  margin-bottom: 12px;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: background 0.2s, transform 0.2s;
}

.footer-social a:hover {
  background: var(--cyan);
  color: var(--navy);
  transform: translateY(-2px);
}

.footer-contact p {
  font-size: 0.88rem;
  margin-bottom: 8px;
}

.footer-bottom-inner {
  text-align: center;
}

.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--cyan), var(--cyan-dark));
  color: var(--navy);
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s ease;
  z-index: 150;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ===== AI Assistant ===== */
.ai-assistant {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 300;
}

.ai-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  border: none;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: white;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  box-shadow: 0 8px 32px rgba(10, 22, 40, 0.25);
  transition: transform 0.2s;
}

.ai-toggle:hover { transform: translateY(-2px); }

.ai-panel {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 0;
  width: min(380px, calc(100vw - 48px));
  background: var(--white);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(10, 22, 40, 0.2);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 480px;
}

.ai-panel[hidden] { display: none; }

.ai-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 18px;
  background: var(--navy);
  color: white;
}

.ai-header small {
  display: block;
  font-size: 0.72rem;
  opacity: 0.75;
  margin-top: 2px;
}

.ai-close {
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.ai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 320px;
}

.ai-msg {
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 0.85rem;
  line-height: 1.55;
  white-space: pre-wrap;
  max-width: 92%;
}

.ai-msg.bot {
  background: var(--gray-100);
  align-self: flex-start;
}

.ai-msg.user {
  background: rgba(0, 212, 255, 0.15);
  align-self: flex-end;
}

.ai-input-row {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--gray-200);
}

.ai-input-row input {
  flex: 1;
  padding: 10px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.88rem;
}

.ai-input-row button {
  padding: 10px 16px;
  border: none;
  border-radius: 10px;
  background: var(--navy);
  color: white;
  font-weight: 600;
  cursor: pointer;
}

/* ===== Inner pages ===== */
.page-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: white;
  padding: 80px 0 64px;
  text-align: center;
}

.page-hero h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.page-hero p {
  color: var(--gray-400);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

.page-section {
  padding: 80px 0;
}

.page-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.page-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.page-card {
  background: var(--white);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  transition: transform 0.25s, box-shadow 0.25s;
}

.page-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.page-card .card-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.page-card h3 {
  color: var(--navy);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.cta-banner {
  background: linear-gradient(135deg, var(--navy), #1a3a5c);
  color: white;
  border-radius: 20px;
  padding: 56px 48px;
  text-align: center;
  margin: 40px 0;
}

.cta-banner h2 {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.cta-banner p {
  color: var(--gray-400);
  margin-bottom: 28px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.map-placeholder {
  background: var(--gray-100);
  border-radius: 16px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--gray-200);
  color: var(--gray-600);
  font-weight: 500;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-list {
  list-style: none;
}

.contact-info-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 1rem;
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #25D366;
  color: white;
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 600;
  margin-top: 16px;
  transition: transform 0.2s;
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  color: white;
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
}

.brand-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 14px;
  padding: 28px 20px;
  text-align: center;
  font-weight: 700;
  color: var(--navy);
  transition: all 0.25s;
  box-shadow: 0 2px 8px rgba(10, 22, 40, 0.04);
}

.brand-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.brand-card small {
  display: block;
  font-weight: 500;
  color: var(--gray-600);
  margin-top: 6px;
  font-size: 0.82rem;
}

.section-cta {
  text-align: center;
  margin-top: 40px;
}

.hide-mobile { display: inline-flex; }

/* ===== Admin Dashboard ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--white);
  border-radius: 14px;
  padding: 22px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
}

.stat-card strong {
  display: block;
  font-size: 1.8rem;
  color: var(--cyan-dark);
  font-weight: 800;
}

.stat-card span {
  font-size: 0.82rem;
  color: var(--gray-600);
}

.stat-card.warn strong { color: #dc2626; }

.admin-search-bar {
  margin-bottom: 24px;
}

.admin-search-bar input {
  width: 100%;
  max-width: 400px;
  padding: 12px 18px;
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  font-family: inherit;
}

.admin-product-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--gray-100);
  border-radius: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.admin-product-row img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 8px;
  background: white;
}

.admin-product-info {
  flex: 1;
  min-width: 180px;
}

.admin-product-info h4 {
  font-size: 0.95rem;
  color: var(--navy);
  margin-bottom: 4px;
}

.admin-product-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.8rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-family: inherit;
}

.btn-edit { background: var(--navy); color: white; }
.btn-refresh { background: rgba(0, 212, 255, 0.15); color: var(--cyan-dark); }
.btn-delete { background: #fee2e2; color: #dc2626; }

.edit-modal .product-modal-dialog {
  max-width: 640px;
}

.edit-form label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--gray-600);
}

.edit-form input,
.edit-form textarea {
  width: 100%;
  padding: 12px;
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  font-family: inherit;
  margin-bottom: 16px;
}

.recent-list {
  list-style: none;
}

.recent-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.88rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .filter-row-main {
    grid-template-columns: 1fr 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .nav, .hide-mobile, .nav-search { display: none; }
  .hamburger { display: flex; }

  .page-grid-2,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .filter-row-main {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .ai-assistant {
    bottom: 80px;
    left: 16px;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
  }
}

body.nav-open {
  overflow: hidden;
}