body {
  background-color: #0d1117;
  color: #e6edf3;
  font-family: "Segoe UI", Arial, sans-serif;
  margin: 0;
  padding: 0;
  text-align: center;
}

header {
  padding: 40px 0;
}

h1 {
  font-size: 48px;
  margin-bottom: 10px;
}

p {
  font-size: 20px;
  opacity: 0.8;
}
nav {
  margin-top: 20px;
}

nav a {
  color: #58a6ff;
  margin: 0 15px;
  text-decoration: none;
  font-size: 18px;
}

nav a:hover {
  text-decoration: underline;
}
/* --- Responsive Mobile --- */
@media (max-width: 600px) {
  body {
    padding: 20px;
    text-align: center;
  }

  h1 {
    font-size: 32px;
  }

  p {
    font-size: 18px;
  }

  img {
    width: 70%;
    max-width: 250px;
  }

  nav a {
    display: block;
    margin: 10px 0;
    font-size: 20px;
  }
}
/* --- Hamburger button --- */
.hamburger {
  display: none;
  font-size: 32px;
  background: none;
  border: none;
  color: #6edcf3;
  cursor: pointer;
  position: absolute;
  top: 20px;
  right: 20px;
}

/* --- Mobile menu hidden by default --- */
#mobileMenu {
  display: flex;
  gap: 20px;
}

/* --- Responsive mode --- */
@media (max-width: 600px) {
  .hamburger {
    display: block;
  }

  #mobileMenu {
    display: none;
    flex-direction: column;
    background: #0d1117;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
  }

  #mobileMenu.show {
    display: flex;
  }

  nav a {
    font-size: 22px;
    margin: 10px 0;
  }
}
/* --- Hamburger button --- */
.hamburger {
  display: none;
  font-size: 32px;
  background: none;
  border: none;
  color: #6edcf3;
  cursor: pointer;
  position: absolute;
  top: 20px;
  right: 20px;
}

/* --- Mobile menu hidden by default --- */
#mobileMenu {
  display: flex;
  gap: 20px;
}

/* --- Responsive mode --- */
@media (max-width: 600px) {
  .hamburger {
    display: block;
  }

  #mobileMenu {
    display: none;
    flex-direction: column;
    background: #0d1117;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
  }

  #mobileMenu.show {
    display: flex;
  }

  nav a {
    font-size: 22px;
    margin: 10px 0;
  }
}