/* Reset default styles for consistency */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans', Arial, sans-serif;
  background: linear-gradient(135deg, #d1d8e0 0%, #ebedf0 100%);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding: 40px 15px;
  color: #1f2937;
}

.chatbot-container {
  width: 100%;
  max-width: 750px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 25px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.chatbot-container:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.chatbot-header {
  background: linear-gradient(90deg, #1e3a8a 0%, #2563eb 100%);
  color: #ffffff;
  padding: 25px;
  text-align: center;
  font-size: 1.7em;
  font-weight: 800;
  border-top-left-radius: 25px;
  border-top-right-radius: 25px;
  flex-shrink: 0;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  position: relative;
}

.chatbot-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #ffd700, #ffd700, #ffd700);
  opacity: 0.7;
}

.chatbot-messages {
  flex-grow: 1;
  min-height: 300px;
  max-height: 550px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: #f8fafc;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #9ca3af #e5e7eb;
}

.chatbot-messages::-webkit-scrollbar {
  width: 10px;
}

.chatbot-messages::-webkit-scrollbar-track {
  background: #e5e7eb;
  border-radius: 12px;
}

.chatbot-messages::-webkit-scrollbar-thumb {
  background: #9ca3af;
  border-radius: 12px;
  transition: background 0.3s ease;
}

.chatbot-messages::-webkit-scrollbar-thumb:hover {
  background: #6b7280;
}

.message {
  max-width: 75%;
  padding: 14px 20px;
  border-radius: 15px;
  overflow-wrap: break-word;
  word-break: break-word;
  white-space: normal;
  line-height: 1.7;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  font-size: 1em;
  opacity: 0;
  animation: fadeIn 0.6s ease forwards;
  transition: transform 0.3s ease;
}

.message:hover {
  transform: scale(1.02);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message p {
  margin: 5px 0;
}

.bot-message {
  background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 100%);
  color: #000000;
  align-self: flex-start;
  border-bottom-left-radius: 2px;
  border-left: 3px solid #2563eb;
}

.user-message {
  background: linear-gradient(135deg, #2ff5ff 0%, #4199dc 100%);
  color: #000709;
  align-self: flex-end;
  border-bottom-right-radius: 2px;
  border-right: 3px solid #017cff;
}

.chatbot-input {
  display: flex;
  padding: 25px;
  border-top: 1px solid #e2e8f0;
  background: rgba(255, 255, 255, 0.9);
  flex-shrink: 0;
  gap: 12px;
  box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.05);
}

.chatbot-input input {
  flex: 1;
  padding: 14px 25px;
  border: 1px solid #d4d8dd;
  border-radius: 35px;
  font-size: 1em;
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  background: #fafafa;
}

.chatbot-input input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.chatbot-input button {
  padding: 14px 35px;
  background: linear-gradient(90deg, #1e3a8a 0%, #2563eb 100%);
  color: #ffffff;
  border: none;
  border-radius: 35px;
  cursor: pointer;
  font-size: 1em;
  font-weight: 700;
  transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.chatbot-input button:hover {
  background: linear-gradient(90deg, #1e40af 0%, #3b82f6 100%);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.chatbot-input button:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}

/* Responsive adjustments */
@media (max-height: 600px) {
  .chatbot-container {
    min-height: 60vh;
  }
  .chatbot-messages {
    min-height: 200px;
    max-height: 400px;
  }
  .message {
    font-size: 0.95em;
    padding: 12px 18px;
  }
}

@media (max-width: 640px) {
  .chatbot-container {
    max-width: 95%;
    border-radius: 15px;
    padding: 10px;
  }
  .chatbot-header {
    font-size: 1.3em;
    padding: 15px;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
  }
  .chatbot-messages {
    padding: 15px;
    gap: 15px;
    min-height: 250px;
    max-height: 450px;
  }
  .message {
    max-width: 85%;
    font-size: 0.85em;
    padding: 10px 15px;
    line-height: 1.5;
    border-radius: 10px;
  }
  .chatbot-input {
    padding: 15px;
    gap: 8px;
    flex-wrap: wrap;
  }
  .chatbot-input input {
    padding: 10px 15px;
    font-size: 0.9em;
    border-radius: 25px;
  }
  .chatbot-input button {
    padding: 10px 20px;
    font-size: 0.9em;
    border-radius: 25px;
  }
}