/* ==========================================================================
   AC MEDIC - SOLUCIONES ORTOPÉDICAS Y EQUIPAMIENTO MÉDICO
   Estilos CSS Principales (Modernos, Responsivos y Elegantes)
   ========================================================================== */

:root {
  /* Brand Palette (Extraída de Logo.PNG) */
  --primary: #144E8C;
  --primary-dark: #0D3969;
  --primary-light: #EEF5FC;
  
  --emerald: #3AB69B;
  --emerald-dark: #279C84;
  --emerald-light: #E8F8F4;
  
  --whatsapp: #25D366;
  --whatsapp-dark: #1DA851;
  
  --dark: #0F172A;
  --dark-heading: #1E293B;
  --text-main: #334155;
  --text-muted: #64748B;
  
  --bg-body: #FFFFFF;
  --bg-light: #F8FAFC;
  --bg-card: #FFFFFF;
  
  --border-color: #E2E8F0;
  --border-focus: #3AB69B;
  
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.12);
  --shadow-emerald: 0 8px 20px rgba(58, 182, 155, 0.3);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* RESET & BASE */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  color: var(--dark-heading);
  font-weight: 700;
  line-height: 1.25;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* LAYOUT CONTAINER */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: 5rem 0;
}

.bg-light {
  background-color: var(--bg-light);
}

.text-center {
  text-align: center;
}

.grid {
  display: grid;
}

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

.align-center {
  align-items: center;
}

.gap-4 {
  gap: 2.5rem;
}

.w-100 {
  width: 100%;
}

.mt-3 {
  margin-top: 1rem;
}

/* BADGES & TAGS */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background-color: var(--emerald-light);
  color: var(--emerald-dark);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 2.25rem;
  color: var(--primary-dark);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 3rem auto;
}

.badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background-color: var(--primary-light);
  color: var(--primary);
}

.badge-emerald {
  background-color: var(--emerald-light);
  color: var(--emerald-dark);
}

/* BOTONES */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 1.6rem;
  font-family: 'Poppins', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition-normal);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-emerald {
  background-color: var(--emerald);
  color: #ffffff;
  box-shadow: var(--shadow-emerald);
}

.btn-emerald:hover {
  background-color: var(--emerald-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(58, 182, 155, 0.4);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: #ffffff;
}

/* ==================== NAVBAR ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
  background-color: rgba(255, 255, 255, 0.98);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: auto;
}

.brand-logo {
  margin-left: -5rem;
  display: flex;
  align-items: center;
}

.brand-logo .logo-img {
  height: 115px;
  width: auto;
  object-fit: contain;
  transition: all var(--transition-normal);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--dark-heading);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link i {
  color: var(--emerald);
  font-size: 0.9rem;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background-color: var(--emerald);
  border-radius: var(--radius-full);
  transition: var(--transition-normal);
}

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

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--dark);
  cursor: pointer;
}

/* ==================== HERO PORTADA CON VIDEO ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 80px;
  color: #ffffff;
  overflow: hidden;
}

.hero-video-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-video-mobile {
  display: none;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg, 
    rgba(15, 23, 42, 0.88) 0%, 
    rgba(20, 78, 140, 0.82) 60%, 
    rgba(15, 61, 110, 0.88) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 4rem 1.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1.25rem;
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 1.5rem;
  animation: fadeInDown 0.8s ease;
}

.hero-badge i {
  color: var(--emerald);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #E2E8F0;
  margin-bottom: 2.5rem;
  font-weight: 400;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  text-align: left;
  animation: fadeInUp 0.8s ease 0.8s both;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.highlight-item i {
  font-size: 2rem;
  color: var(--emerald);
  background: rgba(255, 255, 255, 0.15);
  padding: 0.75rem;
  border-radius: var(--radius-md);
}

.highlight-item strong {
  display: block;
  font-size: 1rem;
  color: #ffffff;
}

.highlight-item span {
  font-size: 0.825rem;
  color: #CBD5E1;
}

/* ==================== SOBRE NOSOTROS ==================== */
.nosotros-lead {
  font-size: 1.15rem;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 1rem;
}

.nosotros-text {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--bg-light);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--emerald);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  width: 44px;
  height: 44px;
  background-color: var(--emerald-light);
  color: var(--emerald-dark);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.feature-info h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.feature-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* GALERÍA DE NOSOTROS */
.gallery-wrapper {
  position: relative;
}

.gallery-main-img-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid #ffffff;
  background-color: var(--bg-light);
}

.gallery-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.gallery-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(10px);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.gallery-badge i {
  color: var(--emerald);
  font-size: 1.2rem;
}

.gallery-sub-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.sub-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 2px solid #ffffff;
  background-color: var(--bg-light);
}

/* ==================== GALERÍA DE PRODUCTOS ==================== */
.catalog-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.65rem 1.4rem;
  font-family: 'Poppins', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  background-color: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-sm);
}

.filter-btn i {
  color: var(--emerald);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.filter-btn:hover i, .filter-btn.active i {
  color: #ffffff;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.product-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--emerald);
}

.product-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background-color: var(--primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  z-index: 2;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-img-wrapper {
  position: relative;
  height: 220px;
  background-color: #ffffff;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.product-img {
  max-height: 100%;
  width: auto;
  object-fit: contain;
  transition: var(--transition-slow);
}

.product-card:hover .product-img {
  transform: scale(1.08);
}

.product-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-name {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--dark-heading);
}

.product-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.4;

  /* Multiline truncate */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-features {
  margin-bottom: 1.5rem;
  font-size: 0.825rem;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: auto;
}

.product-features li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.product-features li i {
  color: var(--emerald);
  font-size: 0.8rem;
}

.product-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.product-actions .btn {
  flex: 1;
}

/* ==================== SERVICIOS ESPECIALES ==================== */
.service-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.highlight-card {
  border: 2px solid var(--emerald);
  background: linear-gradient(180deg, #FFFFFF 0%, var(--emerald-light) 100%);
}

.service-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.icon-emerald {
  background-color: var(--emerald-light);
  color: var(--emerald-dark);
}

.service-title {
  font-size: 1.5rem;
  margin-top: 0.25rem;
}

.service-desc {
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  font-size: 1rem;
}

.service-body h4 {
  font-size: 1.05rem;
  margin-bottom: 1rem;
  color: var(--dark-heading);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.service-body h4 i {
  color: var(--emerald);
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.service-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.95rem;
}

.service-list li i {
  color: var(--emerald);
  font-size: 1.1rem;
  margin-top: 2px;
}

.requirements-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background-color: #ffffff;
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--emerald);
  color: #ffffff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.step-content strong {
  display: block;
  font-size: 0.95rem;
  color: var(--dark-heading);
}

.step-content span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.service-footer {
  margin-top: auto;
}

/* ==================== CONTACTO ==================== */
.contact-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.contact-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.75rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.highlight-contact {
  border: 2px solid var(--whatsapp);
  background: linear-gradient(180deg, #FFFFFF 0%, #E8F9EE 100%);
}

.contact-badge-pop {
  position: absolute;
  top: -12px;
  background-color: var(--whatsapp);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.25rem;
}

.icon-whatsapp {
  background-color: rgba(37, 211, 102, 0.15);
  color: var(--whatsapp-dark);
}

.contact-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.contact-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.contact-detail {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--primary-dark);
  display: inline-block;
  word-break: break-all;
}

.highlight-contact .contact-detail {
  color: var(--whatsapp-dark);
  font-size: 1.15rem;
}

/* MAP EMBED */
.map-container {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.map-header {
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.map-header h3 {
  font-size: 1.15rem;
  color: var(--dark-heading);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.map-header h3 i {
  color: var(--emerald);
}

.map-header p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.responsive-map iframe {
  width: 100%;
  display: block;
}

/* ==================== FOOTER ==================== */
.footer {
  background-color: var(--dark);
  color: #94A3B8;
  padding: 4rem 0 2rem 0;
  border-top: 4px solid var(--emerald);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  height: 55px;
  width: auto;
  margin-bottom: 1.25rem;
  filter: brightness(0) invert(1);
}

.brand-col p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  position: relative;
}

.footer-col h4::after {
  content: '';
  display: block;
  width: 30px;
  height: 3px;
  background-color: var(--emerald);
  margin-top: 0.4rem;
  border-radius: var(--radius-full);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col ul a {
  color: #94A3B8;
  font-size: 0.9rem;
}

.footer-col ul a:hover {
  color: var(--emerald);
  padding-left: 4px;
}

.footer-col p {
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.footer-col p i {
  color: var(--emerald);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: #64748B;
}

/* ==================== BOTONES FLOTANTES ==================== */

/* 1. WhatsApp Floating */
.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 60px;
  height: 60px;
  background-color: var(--whatsapp);
  color: #ffffff;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  z-index: 1000;
  transition: var(--transition-normal);
  animation: pulseWhatsapp 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  background-color: var(--whatsapp-dark);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.6);
}

.whatsapp-tooltip {
  position: absolute;
  right: 70px;
  background-color: var(--dark);
  color: #ffffff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.825rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
}

/* 2. Back to Top */
.back-to-top {
  position: fixed;
  bottom: 95px;
  right: 28px;
  width: 48px;
  height: 48px;
  background-color: var(--primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  z-index: 999;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition-normal);
}

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

.back-to-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
}

/* ==================== MODAL DE PRODUCTO ==================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9);
  transition: var(--transition-normal);
}

.modal-backdrop.active .modal-card {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 20px;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  transition: var(--transition-fast);
}

.modal-close:hover {
  color: var(--dark);
}

.modal-product-header {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.modal-product-img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  border-radius: var(--radius-md);
  background-color: var(--bg-light);
  padding: 0.5rem;
}

.modal-product-title-wrap {
  flex: 1;
}

.modal-product-title-wrap h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

/* ==================== ANIMACIONES ==================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseWhatsapp {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 18px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

/* ==========================================================================
   SECCIÓN PROVEEDORES / MARCAS SLIDER
   ========================================================================== */
.proveedores-section {
  padding: 4rem 0 4.5rem 0;
  background-color: var(--bg-body);
  overflow: hidden;
  position: relative;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.mb-4 {
  margin-bottom: 2rem;
}

.logos-slider {
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 1.5rem 0;
  /* Máscara de degradado transparente en extremos para un desvanecimiento suave */
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

.logos-slider-track {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  width: max-content;
  /* Desplazamiento continuo moderadamente lento de izquierda a derecha */
  animation: slideRight 28s linear infinite;
  will-change: transform;
}

.logos-slider-track:hover {
  animation-play-state: paused;
}

.logo-item {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.5rem;
}

.logo-item img {
  max-height: 85px;
  max-width: 210px;
  width: auto;
  height: auto;
  object-fit: contain;
  /* Escala de grises por defecto */
  filter: grayscale(100%);
  opacity: 0.7;
  transition: filter 0.4s ease, opacity 0.4s ease, transform 0.3s ease;
  cursor: pointer;
}

/* Al pasar el mouse vuelve a su color original con ligera amplificación */
.logo-item img:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.1);
}

/* Animación fluida de Izquierda a Derecha */
@keyframes slideRight {
  0% {
    transform: translateX(-50%);
  }
  100% {
    transform: translateX(0%);
  }
}

/* ==================== MEDIA QUERIES (RESPONSIVO) ==================== */
@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .hero-video-desktop {
    display: none;
  }

  .hero-video-mobile {
    display: block;
  }

  .brand-logo {
    margin-left: 0;
  }
  
  .brand-logo .logo-img {
    height: 110px;
  }

  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-highlights {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-cards-grid {
    grid-template-columns: 1fr;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 95px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 95px);
    background-color: #ffffff;
    padding: 2rem;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
  
  .nav-link {
    font-size: 1.1rem;
  }
  
  .nav-btn span {
    display: none;
  }
  
  .map-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .logos-slider-track {
    gap: 1.8rem;
    animation-duration: 25s;
  }

  .logo-item img {
    max-height: 65px;
    max-width: 160px;
  }
}

@media (max-width: 480px) {
  .brand-logo .logo-img {
    height: 100px;
  }

  .gallery-badge {
    bottom: 10px;
    left: 10px;
    padding: 0.4rem 0.8rem;
    font-size: 0.78rem;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .modal-product-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}