.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.product-actions .btn {
  flex: 1 1 auto;
  min-width: 160px;
}

.part-actions {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1rem;
}

.part-actions .btn {
  width: 100%;
}

.parts-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .parts-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 992px) {
  .parts-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .parts-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}
/* Modelo 9 - Design System Avançado */
:root {
  --bg: #2F3437;
  --ink: #FFFFFF;
  --muted: #5C6469;
  --metal: #E3E5E6;
  --accent: #2A4C7F;
  --line: #B9BEC2;
  --surface: #E4E6E7;
  --surface-light: #D0D2D3;
  --ink-strong: #0F0F0F;
  --muted-strong: #2F3539;
  --accent-light: #4F74B0;
  --accent-bright: #9AB4DE;
  --ok: #47C17C;
  --warn: #F6A609;
  --err: #E15757;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.2);
  --shadow-xl: 0 16px 64px rgba(0,0,0,0.25);
  --gradient-primary: linear-gradient(135deg, #2A4C7F 0%, #1F1F1F 100%);
  --gradient-bg: linear-gradient(135deg, #D0D2D3 0%, #E8EAEC 100%);
}

/* Reset e Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 400;
  background-color: var(--surface-light);
  color: var(--ink-strong);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: #233B65;
}

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

/* Preloader */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.loader {
  width: 50px;
  height: 50px;
  border: 3px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Navigation */
.navbar {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(208, 210, 211, 0.95) 100%);
  background-color: rgba(208, 210, 211, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(185, 190, 194, 0.6);
  padding: 1rem 0 0.5rem;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: linear-gradient(135deg, rgba(223, 225, 226, 0.95) 0%, rgba(193, 197, 200, 0.98) 100%);
  background-color: rgba(193, 197, 200, 0.98);
  box-shadow: 0 6px 24px rgba(15, 20, 26, 0.15);
}

.navbar-brand {
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--ink-strong);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.navbar-logo {
  width: min(240px, 45vw);
  height: auto;
  max-height: 200px;
}

.navbar-brand span {
  font-size: 1.125rem;
  letter-spacing: 0.4px;
}

.navbar.navbar-dark .navbar-nav .nav-link {
  color: var(--ink-strong);
}

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

.nav-link {
  color: var(--ink-strong);
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

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

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

/* Hero Section */
.hero-section {
  background: linear-gradient(180deg, rgba(244, 245, 246, 0.96) 0%, rgba(219, 222, 225, 0.95) 55%, rgba(194, 198, 203, 0.92) 100%);
  color: var(--ink-strong);
  padding: clamp(4rem, 10vh, 6rem) 0;
  position: relative;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.55) 0%, rgba(227, 230, 232, 0.65) 35%, rgba(186, 191, 196, 0.7) 100%);
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 25% 50%, rgba(42, 76, 127, 0.15) 0%, transparent 55%);
  z-index: 1;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(42, 76, 127, 0.2) 0%, transparent 55%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: var(--ink-strong);
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-title .text-accent {
  color: #1F3A66;
  text-shadow: 2px 4px 12px rgba(18, 32, 58, 0.18);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: #3F464B;
  margin-bottom: 2.5rem;
  max-width: 600px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  border-radius: 12px;
  padding: 1rem 2rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  border: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--ink);
  box-shadow: var(--shadow-md);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 1.2s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-outline-light {
  border: 2px solid rgba(192, 192, 192, 0.35);
  color: var(--ink);
  background: transparent;
}

.btn-outline-light:hover {
  background: #FFFFFF;
  border-color: #FFFFFF;
  color: var(--ink-strong);
  transform: translateY(-2px);
}

.btn-outline-light.btn-whatsapp {
  background: #FFFFFF;
  border-color: rgba(74, 103, 146, 0.35);
  box-shadow: var(--shadow-sm);
  color: transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-outline-light.btn-whatsapp:hover {
  box-shadow: var(--shadow-md);
}

.btn-outline-light.btn-whatsapp i {
  color: #2A4C7F;
  transition: color 0.3s ease;
}

.btn-outline-light.btn-whatsapp:hover i {
  color: #335c96;
}

.btn-text-gradient {
  background: linear-gradient(90deg, #1F3A66 0%, #4F74B0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-media-container {
  position: relative;
  z-index: 2;
}

.hero-media-wrapper {
  position: relative;
  display: inline-block;
}

.hero-video {
  width: 100%;
  border-radius: 20px;
  box-shadow: var(--shadow-xl);
  object-fit: cover;
  max-height: 520px;
}

/* Seções */
section {
  padding: clamp(5rem, 12vh, 8rem) 0;
  position: relative;
}

.hero-section + .section-divider {
  margin-top: -2rem;
}

@media (max-width: 991px) {
  .navbar {
    padding-bottom: 1rem;
  }

  .navbar-brand {
    margin-bottom: 0.5rem;
  }

  .navbar-logo {
    width: min(200px, 60vw);
    max-height: 160px;
  }

  .navbar-nav {
    gap: 0.5rem;
  }

  .nav-link {
    padding: 0.5rem 1rem;
  }
}

.section-divider {
  border: none;
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(42, 76, 127, 0.4) 15%, rgba(42, 76, 127, 0.7) 50%, rgba(42, 76, 127, 0.4) 85%, transparent 100%);
  margin: 0;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--ink-strong);
  margin-bottom: 1.5rem;
  text-align: center;
  position: relative;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--muted-strong);
  text-align: center;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* About Section */
.about-section {
  background: #FFFFFF;
}

.feature-card {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(15, 15, 15, 0.08);
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-10px);
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  color: var(--ink-strong);
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--muted-strong);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Products Section */
.products-section {
  background: var(--metal);
  color: var(--ink-strong);
}

.product-card {
  background: #FFFFFF;
  color: var(--ink-strong);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(15, 15, 15, 0.08);
  height: 100%;
}

.product-card:hover {
  transform: translateY(-10px);
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}

.product-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, transparent, rgba(42, 76, 127, 0.8));
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.product-info h4 {
  color: var(--ink);
  margin: 0;
  font-size: 1.1rem;
}

.product-info span {
  color: var(--muted);
  font-size: 0.9rem;
}

.product-content {
  padding: 1.5rem;
}

.product-content h3 {
  font-size: 1.25rem;
  color: var(--ink-strong);
  margin-bottom: 0.75rem;
}

.product-content p {
  color: var(--muted-strong);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}

.product-features {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.product-features li {
  color: var(--muted-strong);
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
  position: relative;
  padding-left: 1rem;
}

.product-features li::before {
  content: '✓';
  color: var(--accent);
  position: absolute;
  left: 0;
}

/* Parts Section */
.parts-section {
  background: #FFFFFF;
}

.part-card {
  position: relative;
  background: linear-gradient(145deg, #FFFFFF 0%, #F3F5F9 100%);
  border-radius: 20px;
  padding: 2rem 1.75rem;
  text-align: center;
  transition: all 0.35s ease;
  border: 1px solid rgba(42, 76, 127, 0.15);
  box-shadow: 0 18px 36px rgba(42, 76, 127, 0.12);
  overflow: hidden;
}

.part-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: 0 28px 48px rgba(42, 76, 127, 0.18);
}

.part-card img {
  border-radius: 14px;
  margin-bottom: 1.25rem;
  aspect-ratio: 1;
  object-fit: cover;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.part-card h4 {
  font-size: 1rem;
  color: var(--ink-strong);
  margin-bottom: 0.5rem;
}

.part-card::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  width: 140%;
  height: 80%;
  background: radial-gradient(circle at center, rgba(154, 180, 222, 0.25), transparent 70%);
  transform: translateX(-50%);
  pointer-events: none;
}

/* Services Section */
.services-section {
  background: var(--metal);
  color: var(--ink-strong);
}

.service-card {
  background: #FFFFFF;
  color: var(--ink-strong);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(15, 15, 15, 0.08);
  height: 100%;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.5rem;
  color: var(--ink-strong);
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--muted-strong);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Diferenciais Section */
.diferenciais-section {
  background: #FFFFFF;
  padding-bottom: clamp(6rem, 14vh, 10rem);
}

.products-section .section-title,
.services-section .section-title {
  color: var(--ink-strong);
}

.products-section .section-subtitle,
.services-section .section-subtitle {
  color: var(--muted-strong);
}

.diferencial-card {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(15, 15, 15, 0.08);
  height: 100%;
}

.diferenciais-section .row {
  row-gap: 2.5rem;
}

.diferencial-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}

.diferencial-icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.diferencial-card h3 {
  font-size: 1.25rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.diferencial-card p {
  color: var(--muted-strong);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Contact Section */
.contact-section {
  background: #FFFFFF;
}

.contact-form-wrapper {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 2.5rem;
  border: 1px solid rgba(15, 15, 15, 0.08);
}

.contact-form .form-label {
  color: var(--muted-strong);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.contact-form .form-control,
.contact-form .form-select {
  background: #FFFFFF;
  border: 1px solid rgba(42, 76, 127, 0.2);
  color: var(--ink-strong);
  border-radius: 12px;
  padding: 1rem;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.contact-form .form-control:focus,
.contact-form .form-select:focus {
  background: #FFFFFF;
  border-color: var(--accent);
  box-shadow: 0 0 0 0.2rem rgba(42, 76, 127, 0.2);
  color: var(--ink-strong);
}

.contact-form .form-control::placeholder {
  color: var(--muted-strong);
}

.contact-info {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 2.5rem;
  border: 1px solid rgba(15, 15, 15, 0.08);
}

.contact-info h3 {
  color: var(--accent);
  margin-bottom: 2rem;
  font-size: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item i {
  font-size: 1.25rem;
  color: var(--accent);
  margin-top: 0.2rem;
}

.contact-item a {
  color: var(--accent);
  font-weight: 600;
}

.contact-item a:hover {
  color: #1f355a;
}

.contact-social {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-social {
  background: #ffffff;
  border-color: rgba(74, 103, 146, 0.4);
  color: var(--ink-strong);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-sm);
  padding-inline: 1rem;
}

.btn-social:hover {
  box-shadow: var(--shadow-md);
  color: var(--accent);
}

.contact-item strong {
  color: var(--ink-strong);
  display: block;
  margin-bottom: 0.25rem;
}

.contact-item p {
  color: var(--muted-strong);
  margin: 0;
  line-height: 1.5;
}

.contact-item a {
  color: var(--accent);
  text-decoration: none;
}

.contact-item a:hover {
  color: #233B65;
}

/* Footer */
.footer {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.85) 0%, rgba(208, 210, 211, 0.95) 100%);
  border-top: 1px solid rgba(185, 190, 194, 0.4);
  color: var(--ink-strong);
}

.footer h5 {
  color: var(--ink-strong);
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.footer p {
  color: var(--muted-strong);
  font-size: 0.9375rem;
  margin-bottom: 0.5rem;
}

.footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.footer a:hover {
  color: #233B65;
}

.footer-base {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .footer-base {
    flex-direction: row;
  }
}

.footer-copy {
  margin: 0;
  color: var(--muted-strong);
}

.footer-credit-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* Responsividade */
.hero-row {
  min-height: 65vh;
}

@media (max-width: 991px) {
  .hero-section {
    text-align: center;
    padding: clamp(4rem, 15vh, 6rem) 0;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-media-container {
    margin-top: 3rem;
  }
}

@media (max-width: 767px) {
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .product-card,
  .part-card,
  .service-card,
  .feature-card,
  .diferencial-card {
    margin-bottom: 2rem;
  }
  
  .contact-info {
    margin-top: 3rem;
  }
}

/* Utilitários */
.text-accent {
  color: var(--accent);
}

.bg-accent {
  background: var(--accent);
}

.border-accent {
  border-color: var(--accent);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.slide-in {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.slide-in.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #233B65;
}

/* WhatsApp Floating Button */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
  background: #20BA5A;
}

.whatsapp-float i {
  font-size: 2rem;
  color: #FFFFFF;
}

@keyframes pulse-whatsapp {
  0%, 100% {
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.7);
  }
}

@media (max-width: 768px) {
  .whatsapp-float {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
  }
  
  .whatsapp-float i {
    font-size: 1.75rem;
  }
}

/* Language Flags */
.language-flags {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
}

.flag-link {
  display: inline-block;
  transition: all 0.3s ease;
  text-decoration: none;
}

.flag-img {
  width: 24px;
  height: 24px;
  object-fit: cover;
  border-radius: 50%;
  filter: grayscale(20%) brightness(0.95);
  opacity: 0.9;
  transition: all 0.3s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.flag-link:hover .flag-img {
  transform: scale(1.15);
  filter: grayscale(0%) brightness(1);
  opacity: 1;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.flag-link:active .flag-img {
  transform: scale(1.05);
}