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

html {
  scroll-behavior: smooth;
}

.tech-tags {
  margin-top: 10px;
  font-size: 0.8em;
  color: #00d1ff;
  font-family: monospace;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #0a0f2c 0%, #1b1f3b 50%, #2a2f4f 100%);
  color: #fff;
  line-height: 1.6;
  min-height: 100vh;
}

header {
  text-align: center;
  padding: 60px 20px 40px;
  animation: fadeInDown 1s ease-out;
}

header h1 { 
  font-size: 3em; 
  color: #00d1ff; 
  text-shadow: 0 0 20px rgba(0, 209, 255, 0.5);
  animation: glow 2s ease-in-out infinite alternate;
}

header p { 
  font-size: 1.2em; 
  color: #ccc; 
  margin-top: 10px;
  opacity: 0;
  animation: fadeIn 1s ease-out 0.5s forwards;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes glow {
  from { text-shadow: 0 0 20px rgba(0, 209, 255, 0.5); }
  to { text-shadow: 0 0 30px rgba(0, 209, 255, 0.8); }
}

nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  margin: 30px 0;
  opacity: 0;
  animation: fadeIn 1s ease-out 1s forwards;
}

nav a {
  color: #fff;
  text-decoration: none;
  padding: 12px 24px;
  border: 2px solid #00d1ff;
  border-radius: 25px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  background: transparent;
}

nav a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 209, 255, 0.2), transparent);
  transition: left 0.5s;
}

nav a:hover::before {
  left: 100%;
}

nav a:hover {
  background-color: #00d1ff;
  color: #000;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 209, 255, 0.4);
}

section {
  max-width: 1000px;
  margin: auto;
  padding: 40px 20px;
  opacity: 0;
  transform: translateY(30px);
  animation: slideInUp 0.8s ease-out forwards;
}

section:nth-child(even) {
  animation-delay: 0.2s;
}

section:nth-child(odd) {
  animation-delay: 0.4s;
}

@keyframes slideInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
h2 { 
  color: #00d1ff; 
  margin-bottom: 20px; 
  font-size: 2.2em;
  text-align: center;
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, #00d1ff, #0099cc);
  border-radius: 2px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.card {
  background: rgba(255,255,255,0.08);
  padding: 25px;
  border-radius: 15px;
  border: 1px solid rgba(0, 209, 255, 0.3);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #00d1ff, #0099cc);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-5px);
  background: rgba(255,255,255,0.12);
  border-color: #00d1ff;
  box-shadow: 0 10px 30px rgba(0, 209, 255, 0.2);
}
    .icon-title {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 8px;
    }

    .card i {
      font-size: 2em;
      color: #00d1ff;
    }

    .testimonial {
      background-color: rgba(255,255,255,0.05);
      padding: 20px;
      margin-bottom: 20px;
      border-left: 4px solid #00d1ff;
    }
    footer {
      text-align: center;
      padding: 30px;
      border-top: 1px solid #333;
      margin-top: 40px;
    }
    footer a {
      margin: 0 10px;
      color: #00d1ff;
      font-size: 1.4em;
    }
    form {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }
    input, textarea {
      padding: 10px;
      border-radius: 5px;
      border: none;
    }
button {
  padding: 12px 24px;
  background: linear-gradient(135deg, #00d1ff, #0099cc);
  color: #000;
  border: none;
  border-radius: 25px;
  font-weight: bold;
  font-size: 1em;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

button:hover::before {
  left: 100%;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 209, 255, 0.4);
}

button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

input, textarea {
  padding: 12px 16px;
  border-radius: 8px;
  border: 2px solid rgba(0, 209, 255, 0.3);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 1em;
  transition: all 0.3s ease;
}

input::placeholder, textarea::placeholder {
  color: #ccc;
}

input:focus, textarea:focus {
  outline: none;
  border-color: #00d1ff;
  background: rgba(255,255,255,0.15);
  box-shadow: 0 0 10px rgba(0, 209, 255, 0.3);
}
    .portfolio-card {
      background: rgba(255,255,255,0.08);
      border-radius: 15px;
      overflow: hidden;
      border: 1px solid rgba(0, 209, 255, 0.3);
      transition: all 0.3s ease;
      position: relative;
    }
    .portfolio-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .portfolio-card:hover {
      transform: translateY(-8px);
      border-color: #00d1ff;
      box-shadow: 0 15px 40px rgba(0, 209, 255, 0.3);
    }
    .portfolio-card:hover img {
      transform: scale(1.05);
    }
    .portfolio-content {
      padding: 15px;
    }
    .portfolio-content strong {
      display: block;
      color: #00d1ff;
      margin-bottom: 5px;
    }
    .whatsapp-float {
      position: fixed;
      width: 60px;
      height: 60px;
      bottom: 40px;
      right: 40px;
      background-color: #25d366;
      color: #FFF;
      border-radius: 50px;
      text-align: center;
      font-size: 30px;
      box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      transition: all 0.3s ease;
      animation: pulse 2s infinite;
    }
    .whatsapp-float:hover {
      background-color: #128C7E;
      transform: scale(1.1);
    }

    @keyframes pulse {
      0% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
      50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7); }
      100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    }

    /* Responsividade */
    @media (max-width: 768px) {
      header h1 { font-size: 2.2em; }
      header p { font-size: 1em; }
      
      nav {
        gap: 15px;
        margin: 20px 0;
      }
      
      nav a {
        padding: 10px 18px;
        font-size: 0.9em;
      }
      
      section {
        padding: 30px 15px;
      }
      
      h2 { font-size: 1.8em; }
      
      .card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      
      .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 24px;
      }
    }

    @media (max-width: 480px) {
      header {
        padding: 40px 15px 30px;
      }
      
      header h1 { font-size: 1.8em; }
      
      nav {
        flex-direction: column;
        align-items: center;
      }
      
      nav a {
        width: 200px;
        text-align: center;
      }
    }
    .success-message {
      background-color: rgba(0, 209, 255, 0.2);
      color: #00d1ff;
      border: 1px solid #00d1ff;
    }
    .error-message {
      background-color: rgba(255, 0, 0, 0.2);
      color: #ff6b6b;
      border: 1px solid #ff6b6b;
    }