/* Estilos gerais */
:root {
  --primary-color: #0056b3;
  --secondary-color: #ff6b00;
  --dark-color: #333;
  --light-color: #f4f4f4;
  --success-color: #28a745;
  --danger-color: #dc3545;
  --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: #fff;
}

a {
  text-decoration: none;
  color: var(--primary-color);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.btn:hover {
  opacity: 0.9;
}

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

/* Header */
.header {
  background-color: #fff;
  box-shadow: var(--box-shadow);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}

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

.logo span {
  color: var(--secondary-color);
}

.nav-menu {
  display: flex;
}

.nav-menu li {
  margin-left: 20px;
}

.nav-menu a {
  font-weight: 500;
}

.nav-menu a:hover {
  color: var(--secondary-color);
}

.hamburger {
  display: none;
  cursor: pointer;
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  height: 100vh;
  color: #fff;
  display: flex;
  align-items: center;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.section-title p {
  color: #777;
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  align-items: center;
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  background: #fff;
  padding: 30px;
  border-radius: 5px;
  box-shadow: var(--box-shadow);
  text-align: center;
  transition: transform 0.3s ease;
}

.service-card:hover {
  transform: translateY(-10px);
}

.service-card i {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.service-card h3 {
  margin-bottom: 15px;
}

/* Technologies Section */
.tech-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 30px;
}

.tab-btn {
  padding: 10px 20px;
  background: #f4f4f4;
  border: none;
  cursor: pointer;
  margin: 0 5px;
  border-radius: 5px;
  font-weight: 500;
}

.tab-btn.active {
  background: var(--primary-color);
  color: #fff;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.tech-card {
  background: #fff;
  padding: 30px;
  border-radius: 5px;
  box-shadow: var(--box-shadow);
}

/* Contact Section */
.contact-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.contact-info {
  margin-bottom: 30px;
}

.contact-info h3 {
  margin-bottom: 15px;
}

.contact-info p {
  margin-bottom: 10px;
}

.contact-form .form-group {
  margin-bottom: 20px;
}

.contact-form label {
  display: block;
  margin-bottom: 5px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}

.contact-form textarea {
  height: 150px;
}

/* Footer */
.footer {
  background: var(--dark-color);
  color: #fff;
  padding: 40px 0;
  text-align: center;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}

.footer-section h3 {
  margin-bottom: 15px;
}

.footer-section a {
  color: #fff;
}

.footer-section a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  border-top: 1px solid #555;
  padding-top: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: #fff;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu li {
    margin: 25px 0;
  }

  .about-content,
  .contact-container {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2.5rem;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate {
  animation: fadeIn 1s ease-in-out;
}