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

body {
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: white;
  line-height: 1.6;
}

header {
  background: #111827;
  padding: 20px 40px;

  display: flex;
  justify-content: space-between;
  align-items: center;

  position: sticky;
  top: 0;
}

.logo {
  font-size: 24px;
  font-weight: bold;
}

nav {
  display: flex;
  gap: 20px;
}

nav a {
  color: white;
  text-decoration: none;
  transition: 0.3s;
}

nav a:hover {
  color: #38bdf8;
}

.hero {
  min-height: 80vh;

  display: flex;
  align-items: center;
  justify-content: center;

  text-align: center;

  padding: 40px;
}

.hero-content h1 {
  font-size: 56px;
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 22px;
  margin-bottom: 30px;
  color: #cbd5e1;
}

.btn {
  display: inline-block;
  background: #0ea5e9;
  color: white;
  padding: 14px 28px;
  border-radius: 10px;
  text-decoration: none;
  transition: 0.3s;
}

.btn:hover {
  background: #0284c7;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));

  gap: 30px;

  padding: 60px 40px;
}

.card {
  background: #1e293b;
  padding: 30px;
  border-radius: 16px;

  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

.page {
  max-width: 1000px;
  margin: auto;
  padding: 80px 40px;
}

.page h1 {
  margin-bottom: 30px;
  font-size: 42px;
}

.page p {
  margin-bottom: 20px;
  color: #cbd5e1;
}

form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

input,
textarea {
  padding: 16px;
  border-radius: 10px;
  border: none;
  background: #1e293b;
  color: white;
}

button {
  background: #0ea5e9;
  color: white;

  border: none;

  padding: 16px;

  border-radius: 10px;

  cursor: pointer;

  transition: 0.3s;
}

button:hover {
  background: #0284c7;
}

footer {
  background: #111827;
  text-align: center;
  padding: 30px;
  margin-top: 40px;
  color: #94a3b8;
}

@media(max-width: 768px) {

  header {
    flex-direction: column;
    gap: 20px;
  }

  .hero-content h1 {
    font-size: 40px;
  }

}