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

:root {
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #f093fb;
  --text-dark: #1a1a1a;
  --text-light: #666;
  --bg-light: #f8f9fa;
  --white: #ffffff;
  --border-radius: 12px;
  --transition: all 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--white);
}

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

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: bold;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo i {
  color: var(--primary-color);
  -webkit-text-fill-color: var(--primary-color);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 40px;
}

.nav-links a {
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--text-dark);
  margin: 5px 0;
  transition: var(--transition);
  border-radius: 2px;
}

/* Hero Section */
.hero {
  margin-top: 60px;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: var(--white);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.stars {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0.1;
  background-image: 
    radial-gradient(2px 2px at 20px 30px, #eee, rgba(0, 0, 0, 0)),
    radial-gradient(2px 2px at 60px 70px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 50px 50px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(1px 1px at 130px 80px, #fff, rgba(0, 0, 0, 0)),
    radial-gradient(2px 2px at 90px 10px, #fff, rgba(0, 0, 0, 0));
  background-repeat: repeat;
  background-size: 200px 200px;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  font-size: 56px;
  margin-bottom: 20px;
  font-weight: 800;
  line-height: 1.2;
  animation: slideInLeft 0.8s ease;
}

.hero-text p {
  font-size: 20px;
  margin-bottom: 30px;
  opacity: 0.95;
  animation: slideInLeft 0.8s ease 0.2s backwards;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  animation: slideInLeft 0.8s ease 0.4s backwards;
}

.btn {
  padding: 14px 32px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

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

.btn-large {
  padding: 18px 40px;
  font-size: 18px;
}

.hero-image {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  animation: float 3s ease-in-out infinite;
  font-size: 14px;
}

.card-1 {
  top: 50px;
  left: 0;
  animation-delay: 0s;
}

.card-2 {
  top: 150px;
  right: 30px;
  animation-delay: 0.5s;
}

.card-3 {
  bottom: 50px;
  left: 50px;
  animation-delay: 1s;
}

.floating-card i {
  font-size: 32px;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Services Section */
.services {
  padding: 80px 0;
  background: var(--bg-light);
}

.section-title {
  font-size: 42px;
  margin-bottom: 10px;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 18px;
  margin-bottom: 50px;
}

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

.service-card {
  background: var(--white);
  padding: 40px 30px;
  border-radius: var(--border-radius);
  text-align: center;
  transition: var(--transition);
  border: 1px solid #e0e0e0;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(102, 126, 234, 0.1);
  border-color: var(--primary-color);
}

.service-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--white);
}

.service-card h3 {
  font-size: 22px;
  margin-bottom: 15px;
}

.service-card p {
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.8;
}

.service-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.service-link:hover {
  gap: 8px;
  color: var(--secondary-color);
}

/* About Section */
.about {
  padding: 80px 0;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 42px;
  margin-bottom: 30px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-text p {
  color: var(--text-light);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 40px;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.stat {
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--border-radius);
}

.stat h3 {
  font-size: 32px;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.stat p {
  color: var(--text-light);
  margin: 0;
}

.about-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-placeholder {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 100px;
  color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 20px 50px rgba(102, 126, 234, 0.2);
}

/* Portfolio Section */
.portfolio {
  padding: 80px 0;
  background: var(--bg-light);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.portfolio-item {
  background: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.portfolio-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(102, 126, 234, 0.15);
}

.portfolio-image {
  height: 200px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  position: relative;
  overflow: hidden;
}

.portfolio-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text x="50" y="50" font-size="14" fill="rgba(255,255,255,0.3)" text-anchor="middle">Preview</text></svg>');
  background-size: 100px 100px;
}

.portfolio-info {
  padding: 25px;
}

.portfolio-info h3 {
  margin-bottom: 10px;
  color: var(--text-dark);
}

.portfolio-info p {
  color: var(--text-light);
  font-size: 14px;
}

/* CTA Section */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  text-align: center;
}

.cta-section h2 {
  font-size: 42px;
  margin-bottom: 20px;
}

.cta-section p {
  font-size: 18px;
  margin-bottom: 40px;
  opacity: 0.95;
}

/* Footer */
.footer {
  background: #1a1a1a;
  color: var(--white);
  padding: 60px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: 20px;
  font-size: 18px;
}

.footer-section p {
  color: #aaa;
  font-size: 14px;
  line-height: 1.8;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 10px;
}

.footer-section a {
  color: #aaa;
  text-decoration: none;
  transition: var(--transition);
}

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

.social-links {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(102, 126, 234, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

.newsletter-form {
  display: flex;
  gap: 10px;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 15px;
  border: none;
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-size: 14px;
}

.newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.newsletter-form input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.15);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #aaa;
  font-size: 14px;
}

/* Responsivo */
@media (max-width: 768px) {
  .navbar {
    position: relative;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    flex-direction: column;
    background: var(--white);
    gap: 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    border-bottom: 1px solid #e0e0e0;
  }

  .nav-links a {
    padding: 15px 20px;
    display: block;
  }

  .hamburger {
    display: flex;
  }

  .hero-content {
    grid-template-columns: 1fr;
  }

  .hero-text h1 {
    font-size: 36px;
  }

  .hero-image {
    height: 250px;
  }

  .floating-card {
    width: 100px;
    font-size: 12px;
  }

  .floating-card i {
    font-size: 24px;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .section-title {
    font-size: 32px;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-text h2 {
    font-size: 32px;
  }

  .image-placeholder {
    width: 200px;
    height: 200px;
    font-size: 60px;
  }

  .footer-grid {
    gap: 30px;
  }
}