/* ===== STYLE 4: VIBRANT TEAL & PURPLE ===== */
body {
  font-family: "Nunito", sans-serif;
  background: #fdfdff;
  color: #2d2d2d;
  margin: 0;
  padding: 0;
}

header {
  background: linear-gradient(90deg, #06b6d4, #7c3aed);
  color: #fff;
  text-align: center;
  padding: 1.5rem 1rem;
}

header .logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

header .logo img {
  height: 60px;
  width: auto;
  border-radius: 8px;
}

header .logo span {
  font-size: 1.5rem;
  font-weight: bold;
}

header nav {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

header nav a {
  color: #f3f4f6;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: background 0.3s ease, color 0.3s ease;
}

header nav a:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  text-decoration: none;
}

/* Buttons */
button, a.btn {
  background: #7c3aed;
  color: #fff;
  border-radius: 30px;
  padding: 0.75rem 1.5rem;
  border: none;
  cursor: pointer;
  font-weight: 600;
  text-align: center;
}

button:hover, a.btn:hover {
  background: #6d28d9;
}

/* Footer */
footer {
  background: #0f172a;
  color: #cbd5e1;
  text-align: center;
  padding: 2rem 1rem;
}

footer a {
  color: #06b6d4;
}

/* Cards */
.card {
  background: #fff;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 6px 20px rgba(124,58,237,0.25);
}

/* ===== RESPONSIVENESS ===== */
@media (max-width: 768px) {
  /* Mobile menu toggle button */
  .menu-toggle {
    display: block;
    margin: 0 auto;
    background: #06b6d4;
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    font-size: 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
  }

  .menu-toggle:hover {
    background: #0891b2;
  }

  /* Mobile navigation menu */
  header nav {
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
    display: none; /* hidden until toggled */
    background: linear-gradient(90deg, #06b6d4, #7c3aed);
    border-radius: 8px;
    padding: 1rem 0;
  }

  header nav.active {
    display: flex;
  }

  header nav a {
    display: block;
    text-align: center;
    color: #fff;
  }

  header nav a:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
  }

  .card {
    padding: 1.5rem;
  }
}