* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #96969a;
  background-image: linear-gradient(135deg, #ffffff 0%, #e0e0e5 50%, #c0c0c5 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  overflow-x: hidden;
}

.navbar {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 45%;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  border-radius: 0 0 25px 25px;
  padding: 12px 25px;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1), inset 0 0 1px rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: none;
  z-index: 50;
}

.logo {
  color: white;
  font-size: 1.875rem;
  font-weight: bold;
  text-shadow: 0 0 10px rgba(255, 0, 0, 0.8);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li a {
  color: rgba(0, 0, 0, 0.7);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  padding: 6px 14px;
  transition: all 0.3s ease;
  position: relative;
  text-align: center;
  --after-width: 0;
}

.nav-links li a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: var(--after-width);
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.7), transparent);
  transform: translateX(-50%);
  transition: width 0.4s ease;
}

.nav-links li a:hover {
  color: #000000;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.nav-links li a:hover::after {
  width: 100%;
}

.nav-links li a.active {
  font-weight: 600;
  color: #000000;
}

.nav-links li a.active[href="#"] {
  --after-width: 100%;
  background: none;
  border-radius: 0;
  border: none;
  box-shadow: none;
}

.nav-links li a.active[href="#"]::after {
  display: block;
  width: 100%;
}

.nav-links li a:active {
  transform: scale(0.95);
  transition: transform 0.1s ease;
}

/* Style untuk menu yang aktif selain home */
.nav-links li a.active:not([href="#"]) {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.05);
}

.nav-links li a.active:not([href="#"])::after {
  width: 100%;
}

.nav-button {
  position: absolute;
  left: -80px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
  padding: 12px 30px;
  border-radius: 20px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.nav-button:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(5px);
  box-shadow: 0 4px 20px rgba(255, 0, 0, 0.2);
}

.nav-icon {
  width: 2rem;
  height: 2rem;
  color: #ef4444;
  transition: color 0.3s;
}

.nav-item:hover .nav-icon {
  color: #f87171;
}

.nav-text {
  display: none;
}

.nav-item:hover .nav-text {
  display: inline;
}

/* AI styling */
.chat-container {
  width: 100%;
  max-width: 800px;
  background-color: #96969a;
  background-image: linear-gradient(135deg, #ffffff 0%, #e0e0e5 50%, #c0c0c5 100%);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  height: 80vh;
}

.chat-header {
  background-image: linear-gradient(to bottom, #000000 40%, #454550);
  color: white;
  padding: 15px 20px;
  font-size: 1.2rem;
  font-weight: 600;
  display: flex;
  align-items: center;
}

.chat-header img {
  height: 30px;
  margin-right: 10px;
}

.chat-box {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  background-color: #f9f9f9;
}

.message {
  margin-bottom: 15px;
  max-width: 80%;
  padding: 10px 15px;
  border-radius: 18px;
  line-height: 1.4;
  position: relative;
  animation: fadeIn 0.3s ease-in-out;
}

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

.user-message {
  background-color: #96969a;
  color: #ffffff;
  margin-left: auto;
  border-bottom-right-radius: 5px;
}

.ai-message {
  background-color: white;
  color: #333;
  margin-right: auto;
  border-bottom-left-radius: 5px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.message-time-default {
  font-size: 0.7rem;
  color: #888;
  text-align: right;
  margin-top: 5px;
}

.message-time-user {
  font-size: 0.7rem;
  color: white;
  text-align: right;
  margin-top: 5px;
}

.message-time-AI {
  font-size: 0.7rem;
  color: #888;
  text-align: right;
  margin-top: 5px;
}

.typing-indicator {
  display: none;
  background-color: white;
  color: #666;
  margin-right: auto;
  border-bottom-left-radius: 5px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.typing-indicator span {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: #888;
  border-radius: 50%;
  animation: typing 1s infinite;
  margin-right: 5px;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

.chat-input {
  display: flex;
  padding: 15px;
  background-color: white;
  border-top: 1px solid #eee;
}

.chat-input input {
  flex: 1;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 25px;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.3s;
}

.chat-input input:focus {
  border-color: #000000;
}

.chat-input button {
  background-image: linear-gradient(to bottom right, #000000 40%, #454550);
  color: white;
  border: none;
  border-radius: 25px;
  padding: 12px 20px;
  margin-left: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.3s;
}

.chat-input button:hover {
  background-image: linear-gradient(to bottom left, #454550 40%, #000000);
}

.error-message {
  background-color: #ffebee;
  color: #c62828;
  padding: 10px;
  margin: 10px 0;
  border-radius: 5px;
  font-size: 0.9rem;
  text-align: center;
}

@media (max-width: 768px) {
  .chat-container {
    height: 90vh;
    width: 95%;
    border-radius: 10px;
  }

  .message {
    max-width: 90%;
  }

  .chat-input input {
    padding: 10px;
  }

  .chat-input button {
    padding: 10px 15px;
  }
}