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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #eef7fb, #d9f0ff);
  color: #333;
  line-height: 1.6;
  overflow-x: hidden;
}

header {
  background: linear-gradient(90deg, #4a90e2, #357abd);
  color: #fff;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
  transition: background 0.3s ease;
}

header.scrolled {
  background: linear-gradient(90deg, #2d6cb7, #245a96);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

header h1 {
  margin: 0;
  font-size: 1.8rem;
  text-align: center;
  text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.6);
  animation: fadeIn 1s ease-in;
  user-select: none;
  transition: 0.3s ease-in-out;
}

header h1:hover {
  color: rgb(144, 213, 240);
  transform: translateY(-3px) scale(1.05);
  cursor: pointer;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

header nav ul a {
  color: #ffffff;
  text-decoration: none;
  font-weight: bold;
  text-transform: uppercase;
  position: relative;
  transition: color 0.3s ease, transform 0.3s ease;
}

header nav ul a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: rgb(144, 213, 240);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

header nav ul a:hover {
  color: #82c9e8;
  transform: translateY(-3px);
}

header nav ul a:hover::after {
  width: 100%;
  transform: scaleX(1);
}

header nav ul a:focus {
  outline: 3px solid #6ac9eb;
}

main {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 70vh;
  animation: fadeInUp 1s ease;
}

section {
  max-width: 800px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
  text-align: center;
  animation: fadeInUp 0.8s ease;
}

section:hover {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  transform: translateY(-5px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  
}

section h2 {
  margin-bottom: 1rem;
  color: #4a90e2;
  font-size: 1.6rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}

form label {
  font-weight: bold;
  color: #444;
}

form input,
form textarea {
  padding: 0.8rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
  transition: 0.3s;
}

form input:focus,
form textarea:focus {
  border-color: #4a90e2;
  outline: none;
  box-shadow: 0 0 8px rgba(74, 144, 226, 0.5);
}

form button {
  color: white;
  padding: 0.8rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  background: linear-gradient(90deg, #4a90e2, #357abd);
  transition: 0.5s;
}

form button:hover {
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.25);
  transform: translateY(-2px);
  background: linear-gradient(90deg, #357abd, #4a90e2);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.25);
  
}

.banner {
  position: relative;
  width: 100%;
  height: 350px;
  overflow: hidden;
  border-radius: 16px;
  margin-bottom: 2rem;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(70%);
  transform: scale(1);
  transition: transform 0.7s ease, filter 0.5s ease;
}

.banner:hover img {
  transform: scale(1.05) translateY(-10px);
  filter: brightness(80%);
}

.banner-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  text-align: center;
  animation: fadeIn 1.2s ease;
}

.banner-text h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  text-shadow: 1px 1px 6px rgba(0, 0, 0, 0.6);
}

.banner-text p {
  font-size: 1.2rem;
}

.img-sobre {
  width: 100%;
  max-width: 600px;
  margin-top: 1.5rem;
  border-radius: 16px;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.img-sobre:hover {
  transform: scale(1.03);
}

footer {
  color: white;
  text-align: center;
  padding: 1.5rem;
  margin-top: auto;
  font-size: 0.9rem;
  position: relative;
  background: linear-gradient(-45deg, #2d2d2d, #444);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
}

footer p {
  margin-bottom: 0.5rem;
  opacity: 0.8;
}

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes gradientBG {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@media (max-width: 768px) {
  nav ul {
    gap: 1rem;
  }

  header h1 {
    font-size: 1.5rem;
  }

  header h2 {
    font-size: 1.5rem;
  }

  section {
    padding: 1.5rem;
  }

  .banner {
    height: 250px;
  }

  .banner-text h2 {
    font-size: 1.1rem;
  }
}