body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4;
  color: #333;
}

header {
  background: #003366;
  color: white;
  padding: 1em;
  text-align: center;
}

nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 1em;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

.hero {
  text-align: center;
  background: #ddd;
  padding: 2em;
}

.hero img {
  width: 100%;
  max-height: 600px;
  object-fit: cover;
}

.cta {
  display: inline-block;
  margin-top: 1em;
  padding: 0.5em 1em;
  background: #003366;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}

section {
  padding: 2em;
  background: white;
  margin: 1em;
  border-radius: 8px;
}

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

table, th, td {
  border: 1px solid #ccc;
  padding: 0.5em;
  text-align: left;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1em;
  max-width: 400px;
  margin: auto;
}

input, textarea {
  padding: 0.5em;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  padding: 0.5em;
  background: #003366;
  color: white;
  border: none;
  border-radius: 4px;
}

footer {
  text-align: center;
  padding: 1em;
  background: #003366;
  color: white;
}

body.dark-mode {
  background-color: #121212;
  color: #f0f0f0;
}

body.dark-mode header,
body.dark-mode footer {
  background-color: #1e1e1e;
}

body.dark-mode .cta,
body.dark-mode button {
  background-color: #444;
  color: #fff;
}

section {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease-in-out;
}

section.visible {
  opacity: 1;
  transform: translateY(0);
}


#scrollTopBtn {
  position: absolute;
  
  right: 20px;
  bottom: 40px;
  z-index: 1000;
  background-color: #003366;
  color: white;
  border: none;
  padding: 0.6em 1em;
  border-radius: 50px;
  font-size: 1.2em;
  cursor: pointer;
  box-shadow: 0 0 10px #aaa;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

#scrollTopBtn.show {
  opacity: 1;
}


.slider {
  width: 100%;
 
  overflow: hidden;
  margin: 2em auto;
  border-radius: 8px;
  box-shadow: 0 0 10px #ccc;
}

.slides {
  display: flex;
  width: 100%;
  transition: transform 2.5s ease-in-out;
}

.slides img {
  width: 100%;
  flex-shrink: 0;
  object-fit: cover;
}