/* ==========================================================================
   PORTER HOLDING - COMPONENTES DEL SITIO
   Loader, Navbar, Hero, Video Showcase, Cards, Modales, Formulario y Footer
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. PRELOADER CON LOGO DE PORTER
   -------------------------------------------------------------------------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background-color: #07090D;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.preloader.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem;
  max-width: 420px;
}

.preloader-logo-wrapper {
  position: relative;
  margin-bottom: 2rem;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.preloader-logo {
  height: 52px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.6));
  animation: logoPulse 2s infinite ease-in-out;
}

.preloader-scanner-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, transparent, var(--porter-orange), transparent);
  animation: scannerScan 1.8s infinite ease-in-out;
}

.preloader-progress {
  width: 240px;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
  margin-bottom: 1rem;
}

.preloader-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--porter-orange), #FFA142);
  border-radius: 999px;
  box-shadow: 0 0 12px var(--porter-orange-glow);
  animation: progressFill 1.2s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

.preloader-text {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
}

@keyframes logoPulse {
  0%, 100% { transform: scale(1); opacity: 0.95; }
  50% { transform: scale(1.03); opacity: 1; filter: drop-shadow(0 0 25px rgba(239, 107, 1, 0.4)); }
}

@keyframes scannerScan {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes progressFill {
  0% { width: 0%; }
  60% { width: 75%; }
  100% { width: 100%; }
}

/* --------------------------------------------------------------------------
   2. NAVBAR Y HEADER
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background-color var(--transition-normal), backdrop-filter var(--transition-normal), border-color var(--transition-normal), padding var(--transition-normal);
  padding: 1.2rem 0;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: rgba(11, 14, 20, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-dark);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

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

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 42px;
  width: auto;
  transition: transform var(--transition-fast);
}

.nav-logo:hover img {
  transform: scale(1.02);
}

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

.nav-item {
  position: relative;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-silver);
  padding: 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast);
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--porter-orange);
  box-shadow: 0 0 10px var(--porter-orange-glow);
  border-radius: 999px;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.8rem);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-dark-elevated);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  min-width: 250px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-silver);
  transition: all var(--transition-fast);
}

.dropdown-link:hover {
  background: var(--porter-orange-soft);
  color: var(--porter-orange);
  transform: translateX(4px);
}

.dropdown-icon {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--porter-orange);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* Hamburguesa móvil */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 32px;
  height: 22px;
  cursor: pointer;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  height: 2.5px;
  width: 100%;
  background: var(--text-white);
  border-radius: 999px;
  transition: all var(--transition-fast);
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
  background: var(--porter-orange);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-9.5px) rotate(-45deg);
  background: var(--porter-orange);
}

/* Menú móvil drawer */
.mobile-menu-drawer {
  position: fixed;
  inset: 0;
  background: rgba(7, 9, 13, 0.96);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 6rem 2rem 3rem 2rem;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
}

.mobile-menu-drawer.open {
  transform: translateX(0);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: auto;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-silver);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--porter-orange);
}

/* --------------------------------------------------------------------------
   3. BOTONES Y LLAMADOS A LA ACCIÓN
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.55rem 1.2rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 1.1rem 2.25rem;
  font-size: 1.05rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--porter-orange) 0%, #FF851B 100%);
  color: var(--text-white);
  box-shadow: 0 4px 15px var(--porter-orange-glow);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #FF851B 0%, var(--porter-orange) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--porter-orange-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-white);
  border: 1px solid var(--border-dark);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-outline-orange {
  background: transparent;
  color: var(--porter-orange);
  border: 1.5px solid var(--porter-orange);
}

.btn-outline-orange:hover {
  background: var(--porter-orange);
  color: var(--text-white);
  box-shadow: 0 6px 20px var(--porter-orange-glow);
  transform: translateY(-2px);
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   4. HERO SECTION CON VIDEO DE FONDO
   -------------------------------------------------------------------------- */
.hero-wrapper {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 8rem;
  padding-bottom: 6rem;
  overflow: hidden;
  background-color: #07090D;
}

.hero-video-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
}

.hero-video-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.55;
  filter: brightness(0.85) contrast(1.15);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: radial-gradient(circle at 75% 30%, rgba(239, 107, 1, 0.12) 0%, transparent 60%),
              linear-gradient(180deg, rgba(11, 14, 20, 0.6) 0%, rgba(11, 14, 20, 0.92) 80%, #0B0E14 100%);
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 850px;
}

.hero-title {
  margin-bottom: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #FFFFFF 30%, var(--porter-orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--text-silver);
  margin-bottom: 2.5rem;
  max-width: 720px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin-bottom: 4rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  background: rgba(18, 23, 34, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.stat-item {
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -0.75rem;
  top: 15%;
  height: 70%;
  width: 1px;
  background: var(--border-dark);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: baseline;
}

.stat-number .accent {
  color: var(--porter-orange);
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.35;
}

@media (max-width: 992px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item:nth-child(2)::after {
    display: none;
  }
}

@media (max-width: 576px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  .stat-item::after {
    display: none !important;
  }
}

/* --------------------------------------------------------------------------
   5. VIDEO COMERCIAL SHOWCASE Y MODAL
   -------------------------------------------------------------------------- */
.commercial-card {
  position: relative;
  background: var(--bg-dark-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.commercial-video-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
}

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

.video-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11, 14, 20, 0.45);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.video-play-overlay:hover {
  background: rgba(11, 14, 20, 0.25);
}

.play-button-pulse {
  position: relative;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--porter-orange) 0%, #FF851B 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  box-shadow: 0 0 30px var(--porter-orange-glow);
  transition: transform var(--transition-fast);
}

.play-button-pulse::after {
  content: '';
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 2px solid var(--porter-orange);
  animation: rippleGlow 2s infinite ease-out;
}

.play-button-pulse svg {
  width: 32px;
  height: 32px;
  margin-left: 4px;
}

.video-play-overlay:hover .play-button-pulse {
  transform: scale(1.1);
}

@keyframes rippleGlow {
  0% { transform: scale(0.9); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}

.commercial-details {
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
  background: linear-gradient(180deg, var(--bg-dark-surface) 0%, var(--bg-dark-elevated) 100%);
  border-top: 1px solid var(--border-dark);
}

@media (max-width: 768px) {
  .commercial-details {
    grid-template-columns: 1fr;
  }
}

/* Modal de Video */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(7, 9, 13, 0.95);
  backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.video-modal-dialog {
  position: relative;
  width: 100%;
  max-width: 1080px;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
  border: 1px solid var(--border-dark);
}

.video-modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10001;
  transition: all var(--transition-fast);
}

.video-modal-close:hover {
  background: var(--porter-orange);
  transform: rotate(90deg);
}

/* --------------------------------------------------------------------------
   6. TARJETAS DE ALIANZAS ESTRATÉGICAS (COLABORADORES)
   -------------------------------------------------------------------------- */
.partner-card {
  position: relative;
  background: var(--bg-dark-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  overflow: hidden;
}

.partner-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--porter-orange), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.partner-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-dark-hover);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(239, 107, 1, 0.1);
}

.partner-card:hover::before {
  opacity: 1;
}

.partner-logo-container {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-dark);
}

.partner-logo {
  max-height: 52px;
  max-width: 100%;
  object-fit: contain;
}

.partner-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--porter-orange);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.partner-title {
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.partner-desc {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.partner-specs {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 2rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.spec-bullet {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.85rem;
  color: var(--text-silver);
}

.spec-bullet-icon {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--porter-orange);
  flex-shrink: 0;
}

.partner-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-dark);
}

/* --------------------------------------------------------------------------
   7. TARJETAS DE CARACTERÍSTICAS / VALORES / PRINCIPIOS
   -------------------------------------------------------------------------- */
.feature-card {
  background: var(--bg-dark-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  transition: all var(--transition-normal);
  position: relative;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(239, 107, 1, 0.3);
  box-shadow: var(--shadow-md);
}

.feature-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--porter-orange-soft);
  color: var(--porter-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(239, 107, 1, 0.2);
}

.feature-icon-wrapper svg {
  width: 28px;
  height: 28px;
}

.feature-number {
  position: absolute;
  top: 1.75rem;
  right: 2rem;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.05);
}

/* --------------------------------------------------------------------------
   8. FORMULARIO DE CONTACTO
   -------------------------------------------------------------------------- */
.contact-form-card {
  background: var(--bg-dark-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-silver);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.95rem 1.25rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--porter-orange);
  box-shadow: 0 0 0 3px var(--porter-orange-soft);
}

.form-control::placeholder {
  color: #64748B;
}

select.form-control {
  background-color: var(--bg-dark-elevated);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.contact-info-card {
  background: var(--bg-dark-elevated);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.info-item {
  display: flex;
  gap: 1.25rem;
}

.info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--porter-orange-soft);
  color: var(--porter-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(239, 107, 1, 0.25);
}

.info-icon svg {
  width: 22px;
  height: 22px;
}

.info-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--porter-orange);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.info-val {
  font-size: 1.05rem;
  color: var(--text-white);
  font-weight: 600;
}

.info-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   9. MAPA INTERACTIVO
   -------------------------------------------------------------------------- */
.map-section-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-dark);
  background: var(--bg-dark-surface);
}

.map-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1.25rem;
  background: var(--bg-dark-elevated);
  border-bottom: 1px solid var(--border-dark);
}

.map-btn {
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-silver);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.map-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-white);
}

.map-btn.active {
  background: var(--porter-orange);
  color: var(--text-white);
  box-shadow: 0 2px 10px var(--porter-orange-glow);
}

#porter-interactive-map {
  width: 100%;
  height: 480px;
  z-index: 10;
}

/* --------------------------------------------------------------------------
   10. FOOTER CORPORATIVO
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #07090D;
  border-top: 1px solid var(--border-dark);
  padding-top: 5rem;
  padding-bottom: 2.5rem;
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 640px) {
  .footer-top {
    grid-template-columns: 1fr;
  }
}

.footer-logo {
  height: 44px;
  width: auto;
  margin-bottom: 1.5rem;
}

.footer-desc {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--porter-orange);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-link {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-link:hover {
  color: var(--porter-orange);
  transform: translateX(4px);
}

.footer-contact-item {
  display: flex;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.footer-contact-icon {
  color: var(--porter-orange);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-copy {
  font-size: 0.88rem;
  color: #64748B;
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer-legal-link {
  font-size: 0.85rem;
  color: #64748B;
  transition: color var(--transition-fast);
}

.footer-legal-link:hover {
  color: var(--text-white);
}

/* Botón flotante volver arriba */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-dark-elevated);
  border: 1px solid var(--border-dark);
  color: var(--porter-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--porter-orange);
  color: var(--text-white);
  transform: translateY(-4px);
  box-shadow: 0 6px 20px var(--porter-orange-glow);
}

/* Modal de Alerta / Feedback de Formulario */
.form-feedback-modal {
  position: fixed;
  inset: 0;
  z-index: 10005;
  background: rgba(7, 9, 13, 0.85);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.form-feedback-box {
  background: var(--bg-dark-surface);
  border: 1px solid var(--border-dark-hover);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 460px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.feedback-icon-success {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--porter-orange-soft);
  color: var(--porter-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto;
  border: 2px solid var(--porter-orange);
}