:root {
  --primary-color: #2E86DE;
  --secondary-color: #54A0FF;
  --text-color: #333;
  --background-color: #fff;
  --accent-color: #FF6B6B;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  line-height: 1.6;
  color: var(--text-color);
}

header {
  background-color: var(--background-color);
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
  max-width: 800px;
  margin: 0 auto;
}

.logo h1 {
  color: var(--primary-color);
  font-size: 1.8rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.cta-button {
  background-color: var(--primary-color);
  color: white;
  padding: 0.8rem 1.5rem;
  border-radius: 5px;
  text-decoration: none;
  transition: background-color 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.cta-button:hover {
  background-color: var(--secondary-color);
}

.cta-button.secondary {
  background-color: var(--secondary-color);
}

.hero {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem;
  margin-top: 4rem;
}

.hero-content {
  max-width: 800px;
  color: white;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.produtos {
  padding: 5rem 2rem;
  background-color: #f9f9f9;
}

.produtos h2 {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.5rem;
}

.produtos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.produto-card {
  background: white;
  border-radius: 10px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.produto-card:hover {
  transform: translateY(-5px);
}

.produto-imagem {
  margin-bottom: 1.5rem;
}

.produto-svg {
  width: 100%;
  height: auto;
}

.calculadora {
  padding: 5rem 2rem;
  background-color: #f8fafc;
}

.calculadora h2 {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.calculadora-container {
  max-width: 900px;
  margin: 0 auto;
  background: white;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.ambiente {
  background: #ffffff;
  padding: 2rem;
  border-radius: 15px;
  margin-bottom: 1.5rem;
  box-shadow: 0 3px 15px rgba(0,0,0,0.05);
  border: 1px solid #eef2f7;
  transition: all 0.3s ease;
}

.ambiente:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.ambiente-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.ambiente-nome {
  font-size: 1.2rem;
  padding: 0.5rem 1rem;
  border: 2px solid #eef2f7;
  border-radius: 8px;
  outline: none;
  transition: all 0.3s ease;
  width: 250px;
}

.ambiente-nome:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(46, 134, 222, 0.1);
}

.remover-ambiente {
  background-color: #fff;
  color: var(--accent-color);
  border: 2px solid var(--accent-color);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
}

.remover-ambiente:hover {
  background-color: var(--accent-color);
  color: white;
}

.ambiente-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.input-group {
  display: flex;
  flex-direction: column;
}

.input-group label {
  margin-bottom: 0.5rem;
  color: #64748b;
  font-weight: 500;
}

.input-group input {
  padding: 0.8rem 1rem;
  border: 2px solid #eef2f7;
  border-radius: 8px;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.input-group input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(46, 134, 222, 0.1);
  outline: none;
}

#adicionar-ambiente {
  width: 100%;
  padding: 1rem;
  margin: 1rem 0;
  background-color: #f8fafc;
  border: 2px dashed #cbd5e1;
  color: var(--primary-color);
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
}

#adicionar-ambiente:hover {
  background-color: #f1f5f9;
  border-color: var(--primary-color);
}

.resultado {
  margin-top: 2.5rem;
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 15px;
  color: white;
}

.resultado h3 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
  font-weight: 500;
  opacity: 0.9;
}

#area-total {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

#solicitar-orcamento {
  background-color: white;
  color: var(--primary-color);
  padding: 1rem 2rem;
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

#solicitar-orcamento:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.area-badge {
  background: rgba(255,255,255,0.1);
  padding: 0.3rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  margin-left: 0.5rem;
}

.ambiente-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.ambiente-dimensoes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.forro-select {
  padding: 0.8rem 1rem;
  border: 2px solid #eef2f7;
  border-radius: 8px;
  font-size: 1rem;
  width: 100%;
  background-color: white;
  cursor: pointer;
}

.forro-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(46, 134, 222, 0.1);
  outline: none;
}

.componentes-section {
  background: #f8fafc;
  padding: 1.5rem;
  border-radius: 10px;
}

.componentes-section h4 {
  margin-bottom: 1rem;
  color: var(--primary-color);
  font-size: 1.1rem;
}

.componentes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.componente-input {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: white;
  border-radius: 8px;
  border: 1px solid #eef2f7;
  transition: all 0.3s ease;
}

.componente-input:hover {
  border-color: var(--primary-color);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.componente-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.componente-info small {
  color: #64748b;
  font-size: 0.8rem;
}

.recomendacao {
  color: var(--primary-color) !important;
  font-weight: 500;
}

.quantidade-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.qty-btn {
  width: 30px;
  height: 30px;
  border: 1px solid var(--primary-color);
  background: white;
  color: var(--primary-color);
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.2s ease;
}

.qty-btn:hover {
  background: var(--primary-color);
  color: white;
}

.componente-qty {
  width: 50px;
  text-align: center;
  border: 1px solid #eef2f7;
  border-radius: 4px;
  padding: 0.3rem;
}

.componente-total {
  font-weight: 500;
  color: var(--primary-color);
}

.ambiente-sumario {
  display: flex;
  justify-content: space-between;
  padding: 1rem;
  background: #f8fafc;
  border-radius: 8px;
  margin-top: 1rem;
}

.sumario-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.sumario-item span {
  color: #64748b;
  font-size: 0.9rem;
}

.sumario-item strong {
  color: var(--primary-color);
  font-size: 1.2rem;
}

.why-choose-us {
  padding: 6rem 2rem;
  background: linear-gradient(135deg, #f8fafc, #ffffff);
}

.why-choose-us h2 {
  text-align: center;
  margin-bottom: 4rem;
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.benefit-card {
  background: white;
  padding: 2.5rem 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

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

.benefit-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(46, 134, 222, 0.1);
  border-radius: 50%;
  color: var(--primary-color);
  transition: all 0.3s ease;
}

.benefit-card:hover .benefit-icon {
  background: var(--primary-color);
  color: white;
  transform: scale(1.1);
}

.benefit-card h3 {
  color: var(--text-color);
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.benefit-card p {
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}

.pvc-info {
  padding: 6rem 2rem;
  background: linear-gradient(135deg, #ffffff, #f8fafc);
}

.pvc-info-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.pvc-description h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.pvc-description p {
  color: #64748b;
  line-height: 1.8;
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.pvc-description ul {
  list-style: none;
  padding: 0;
}

.pvc-description li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
  padding: 1rem;
  background: white;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}

.pvc-description li:hover {
  transform: translateX(10px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.pvc-description li i {
  color: var(--primary-color);
  font-size: 1.2rem;
  background: rgba(46, 134, 222, 0.1);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.comparison-table {
  background: white;
  padding: 2rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.comparison-table h3 {
  text-align: center;
  margin-bottom: 2rem;
  color: var(--primary-color);
  font-size: 1.8rem;
}

.table-wrapper {
  overflow-x: auto;
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #eef2f7;
}

.comparison-table th {
  background: var(--primary-color);
  color: white;
}

.comparison-table th:first-child {
  border-top-left-radius: 10px;
}

.comparison-table th:last-child {
  border-top-right-radius: 10px;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table td.positive {
  color: #10B981;
  font-weight: 500;
}

.comparison-table td.negative {
  color: #EF4444;
  font-weight: 500;
}

.comparison-table td.neutral {
  color: #F59E0B;
  font-weight: 500;
}

.comparison-table tr:hover {
  background: #f8fafc;
}

/* Footer Styles */
.footer {
  background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
  color: #fff;
  padding: 4rem 2rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
}

.footer-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  color: var(--primary-color);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-description {
  color: #999;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: #999;
  transition: color 0.3s ease;
}

.contact-item:hover {
  color: var(--primary-color);
}

.contact-item i {
  color: var(--primary-color);
  font-size: 1.2rem;
}

.footer-bottom {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: #666;
}

@media (max-width: 768px) {
  .calculadora {
    padding: 3rem 1rem;
  }

  .calculadora-container {
    padding: 1.5rem;
  }

  .ambiente {
    padding: 1rem;
  }

  .ambiente-header {
    flex-direction: column;
    gap: 1rem;
  }

  .ambiente-nome {
    width: 100%;
  }

  .ambiente-dimensoes {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .componentes-grid {
    grid-template-columns: 1fr;
  }

  .componente-input {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    text-align: center;
  }

  .quantidade-control {
    justify-content: center;
  }

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

  .ambiente-sumario {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
  }

  .sumario-item {
    width: 100%;
    align-items: center;
  }

  .resultado {
    padding: 1.5rem;
  }

  #area-total {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .calculadora {
    padding: 2rem 0.5rem;
  }

  .calculadora-container {
    padding: 1rem;
  }

  .ambiente {
    padding: 0.8rem;
  }

  .remover-ambiente {
    width: 100%;
  }

  .qty-btn {
    width: 28px;
    height: 28px;
  }

  .componente-qty {
    width: 40px;
  }

  .componente-info small {
    display: block;
  }

  .recomendacao {
    margin-top: 0.2rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .calculadora-container {
    max-width: 95%;
  }

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

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .produtos-grid {
    grid-template-columns: 1fr;
  }
  
  .ambiente-inputs {
    grid-template-columns: 1fr;
  }
  
  .calculadora-container {
    padding: 1.5rem;
  }
  
  .ambiente {
    padding: 1.5rem;
  }
  
  .resultado {
    padding: 1.5rem;
  }
  
  #area-total {
    font-size: 2.5rem;
  }
  
  .ambiente-dimensoes {
    grid-template-columns: 1fr;
  }
  
  .componentes-grid {
    grid-template-columns: 1fr;
  }
  
  .ambiente-sumario {
    flex-direction: column;
    gap: 1rem;
  }
  
  .why-choose-us {
    padding: 4rem 1.5rem;
  }
  
  .why-choose-us h2 {
    font-size: 2rem;
    margin-bottom: 3rem;
  }
  
  .benefits-grid {
    gap: 1.5rem;
  }
  
  .benefit-card {
    padding: 2rem 1.5rem;
  }
  
  .footer {
    padding: 3rem 1.5rem;
  }
  
  .footer-container {
    gap: 2rem;
  }
  
  .footer-section {
    text-align: center;
  }
  
  .contact-item {
    justify-content: center;
  }
  
  .pvc-info-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .pvc-description h2 {
    font-size: 2rem;
  }
  
  .comparison-table {
    padding: 1rem;
  }
  
  .comparison-table h3 {
    font-size: 1.5rem;
  }
}