body, html {
  height: 100%;
  margin: 0;
  font-family: Arial, sans-serif;
}
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
}
body {
  height: 100vh;
  width: 100%;
  background: linear-gradient(to bottom, rgb(40, 137, 167) 23%, rgb(40, 137, 167) 95%);
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 15px;
}

.navbar .logo a {
  font-size: 1.8rem;
  text-decoration: none;
  color: #fff;
}

.navbar .links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 35px;
}

.navbar .links a {
  font-weight: 500;
  text-decoration: none;
  color: #fff;
  padding: 10px 0;
  transition: 0.2s ease;
}

.navbar .links a:hover {
  color: #47b2e4;
}

.navbar .buttons a {
  text-decoration: none;
  color: #fff;
  font-size: 1rem;
  padding: 15px 0;
  transition: 0.2s ease;
}

.navbar .buttons a:not(:last-child) {
  margin-right: 30px;
}

.navbar .buttons .signin:hover {
  color: #47b2e4;
}

.navbar .buttons .signup {
  border: 1px solid #fff;
  padding: 10px 20px;
  border-radius: 0.375rem;
  text-align: center;
  transition: 0.2s ease;
}
.buttons .join {
  background-color: rgb(40, 137, 167);
}

.hero-section .buttons .learn {
  border: 1px solid #fff;
  border-radius: 0.375rem;
}

.hero-section .buttons a:hover {
  background-color: rgb(40, 137, 167);
}
#menu-toggle {
  display: none;
}

#hamburger-btn {
  font-size: 1.8rem;
  color: #fff;
  cursor: pointer;
  display: none;
  order: 1;
}

@media screen and (max-width: 1023px) {
  .navbar .logo a {
    font-size: 1.5rem;
  }

  .links {
    position: fixed;
    left: -100%;
    top: 75px;
    width: 100%;
    height: 100vh;
    padding-top: 50px;
    background: rgb(40, 137, 167);
    flex-direction: column;
    transition: 0.3s ease;
  }

  .navbar #menu-toggle:checked ~ .links {
    left: 0;
  }

  .navbar #hamburger-btn {
    display: block;
  }

  .header .buttons {
    display: none;
  }

  .hero-section .hero {
    max-width: 100%;
    text-align: center;
  }

  .hero-section img {
    display: none;
  }
}
.navbar .buttons .signup:hover {
  background-color: #47b2e4;
  color: #fff;
}

.hero-section {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  height: 95vh;
  padding: 0 15px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-section .hero {
  max-width: 50%;
  color: #fff;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: #c9c7c7;
}

.hero-section .img img {
  width: 517px;
}

.hero-section .buttons {
  margin-top: 40px;
}

.hero-section .buttons a {
  text-decoration: none;
  color: #fff;
  padding: 12px 24px;
  border-radius: 0.375rem;
  font-weight: 600;
  transition: 0.2s ease;
  display: inline-block;
}

.hero-section .buttons a:not(:last-child) {
  margin-right: 15px;
}
.contact-container {
  background-image: url('/static/image/background_contact_us.jpg');
  background-size: cover;
  background-position: center;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}
.contact-info {
  background-color: rgba(255, 255, 255, 0.8);
  padding: 20px 40px;
  border-radius: 10px;
  box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.2);
  width: 250px;
  margin-right: 20px;
  color: #333;
}

.contact-form {
  background-color: rgba(255, 255, 255, 0.8);
  padding: 20px 40px;
  border-radius: 10px;
  box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.2);
  width: 400px;
}

.contact-form h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #333;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  color: #333;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 16px;
}

button {
  width: 100%;
  padding: 10px;
  background-color: #007BFF;
  border: none;
  border-radius: 5px;
  color: white;
  font-size: 18px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #0056b3;
}