/* Custom Font */
body {
  font-family: 'Inter', sans-serif;
  background-color: #f8fafc;
}

/* General Container & Text Styling */
.container {
  max-width: 1200px;
}

/* Hero Header */
header {
  background-image: linear-gradient(135deg, #3b82f6, #2563eb);
}

/* Card/Panel Styling */
main .max-w-3xl {
  background-color: #ffffff;
  border-radius: 0.75rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  padding: 2rem;
}

/* Form Labels */
label {
  color: #333333;
}

/* Inputs and Textareas */
input, textarea {
  font-size: 1rem;
  border-width: 1px;
  border-color: #d1d5db; /* Tailwind gray-300 */
  transition: border-color 0.2s ease-in-out;
}
input:focus, textarea:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

/* Toggle Button Styles */
.toggle-btn {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  text-align: center;
  background-color: #e5e7eb; /* gray-200 */
  cursor: pointer;
  border-radius: 0.5rem;
  transition: background-color 0.2s ease;
  font-weight: 600;
}
.toggle-btn.active {
  background-color: #2563eb;
  color: #ffffff;
  border-color: #1d4ed8;
}
.toggle-btn:hover {
  background-color: #cbd5e1;
}

/* Main Translate Button */
#submit-btn {
  font-size: 1.125rem;
  font-weight: 600;
}

/* Result Container */
#result {
  background-color: #ffffff;
  border-radius: 0.5rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* Dialogue Container */
#dialogue-container {
  background-color: #ffffff;
  border-radius: 0.5rem;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}
#dialogue-history {
  background-color: #f1f5f9; /* light gray-blue */
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  padding: 0.75rem;
}
.dialogue-message {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid #e5e7eb;
}
.dialogue-message:last-child {
  border-bottom: none;
}

/* Footer Styles */
footer {
  background-color: #1f2937; /* gray-800 */
  color: #9ca3af; /* gray-400 */
  font-size: 0.875rem;
  padding: 1rem 0;
}