/* Base styles */
body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  transition: background 0.5s, color 0.5s;
}

.container {
  text-align: center;
  padding: 40px 20px;
}

.profile-pic {
  width: 200px; /* Diameter gambar */
  height: 200px; /* Diameter gambar */
  border-radius: 50%; /* Bentuk lingkaran */
  border: 5px solid rgb(255, 0, 0); /* Border awal */
  animation: ledRunningBorder 8s infinite linear; /* Efek border RGB berjalan */
}

h1 {
  margin: 10px 0;
  font-size: 2em;
}

.bio {
  color: gray;
  max-width: 600px;
  margin: auto;
  margin-bottom: 20px;
  font-size: 1rem;
  padding: 0 10px;
}

.link {
  display: block;
  background-color: rgba(0, 0, 0, 0.1);
  color: inherit;
  padding: 15px;
  margin: 10px auto;
  max-width: 300px;
  border-radius: 8px;
  text-decoration: none;
  transition: 0.3s;
  border: 1px solid transparent;
  font-size: 1rem;
}

.link:hover {
  background-color: rgba(0, 0, 0, 0.2);
  transform: scale(1.03);
}

.theme-toggle {
  position: fixed;
  top: 15px;
  right: 20px;
  cursor: pointer;
  font-size: 24px;
  z-index: 10;
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Dark mode */
body.dark {
  background: #121212;
  color: white;
}

body.light {
  background: #f2f2f2;
  color: #111;
}

body.dark .link {
  background-color: rgba(255, 255, 255, 0.1);
}

body.dark .link:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 30px 15px;
  }

  .profile-pic {
    width: 150px;
    height: 150px;
    margin: 20px 0;
  }

  .bio {
    font-size: 0.95rem;
  }

  .link {
    padding: 12px;
    max-width: 90%;
    font-size: 0.95rem;
  }

  .theme-toggle {
    font-size: 20px;
    top: 10px;
    right: 15px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.6em;
  }

  .profile-pic {
    width: 150px;
    height: 150px;
  }

  .bio {
    font-size: 0.9rem;
  }

  .link {
    font-size: 0.9rem;
  }
}


.back-btn-container {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 25px auto;
  max-width: 330px;
  flex-wrap: wrap;
}

.back-btn {
  flex: 1;
  text-align: center;
  background-color: rgba(0, 0, 0, 0.1);
  color: inherit;
  padding: 15px 0;
  border-radius: 8px;
  text-decoration: none;
  transition: 0.3s;
  border: 1px solid transparent;
  font-size: 1rem;
  max-width: 400px;
}

.back-btn:hover {
  background-color: rgba(0, 0, 0, 0.2);
  transform: scale(1.03);
}

/* Dark mode support */
body.dark .back-btn {
  background-color: rgba(255, 255, 255, 0.1);
}

body.dark .back-btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Responsive tweak */
@media (max-width: 768px) {
  .back-btn {
    font-size: 0.95rem;
    padding: 12px 0;
    max-width: 90%;
  }
}

.back-btn, .link {
  font-size: 1rem;
  line-height: 1.5; /* Or adjust to your preference */
}


@keyframes ledRunningBorder {
  0% {
    border-color: rgb(255, 0, 0); /* Merah */
  }
  25% {
    border-color: rgb(0, 255, 0); /* Hijau */
  }
  50% {
    border-color: rgb(0, 0, 255); /* Biru */
  }
  75% {
    border-color: rgb(255, 255, 0); /* Kuning */
  }
  100% {
    border-color: rgb(255, 0, 255); /* Magenta */
  }
}