/* ===== Dark Mode Toggle ===== */
.dark-mode-toggle {
  position: fixed;
  top: 20px; /* changed from bottom to top */
  right: 20px;
  z-index: 100;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
}

.dark-mode-toggle:hover {
  transform: scale(1.1);
}

.dark-mode-toggle svg {
  width: 24px;
  height: 24px;
  fill: white;
}

/* Dark Mode Styles */
body.dark-mode {
  background-color: #121212;
  color: #e0e0e0;
}

body.dark-mode .app-header {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

body.dark-mode .chat-box {
  background-color: #1e1e1e;
  background-image: none;
}

body.dark-mode .ai-message .message-bubble {
  background-color: #2d2d2d;
  color: #e0e0e0;
}

body.dark-mode .user-message .message-bubble {
  background: linear-gradient(135deg, #3a0ca3 0%, #4361ee 100%);
}

body.dark-mode .test-card,
body.dark-mode .test-list-item {
  background-color: #2d2d2d;
  border-color: #3d3d3d;
  color: #e0e0e0;
}

body.dark-mode #user-input {
  background-color: #2d2d2d;
  color: #e0e0e0;
  border-color: #3d3d3d;
}

body.dark-mode ::-webkit-scrollbar-thumb {
  background: rgba(67, 97, 238, 0.5);
}


/* ===== Enhanced Input Area ===== */
.input-area {
  position: relative;
  padding: 15px;
  background: linear-gradient(135deg, rgba(67, 97, 238, 0.05) 0%, rgba(247, 37, 133, 0.05) 100%);
  border-top: 1px solid rgba(67, 97, 238, 0.1);
}

#user-input {
  padding: 12px 20px 12px 45px;
  font-size: 15px;
  border: 2px solid rgba(67, 97, 238, 0.2);
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(5px);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

#user-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
  background-color: white;
}

.input-area::before {
  content: "🔍";
  position: absolute;
  left: 30px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  opacity: 0.6;
  z-index: 2;
}

/* ===== AI Personality Animation ===== */
.ai-personality {
  display: inline-block;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-5px) rotate(2deg); }
}

/* ===== Colorful Test Cards ===== */
.test-card {
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.test-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.test-card:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* ===== Pulsing Welcome Message ===== */
.welcome-message {
  animation: pulse 2s infinite alternate;
}

@keyframes pulse {
  from { opacity: 0.95; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

/* ===== Enhanced Typing Indicator ===== */
.typing-indicator {
  background: linear-gradient(135deg, rgba(67, 97, 238, 0.1) 0%, rgba(247, 37, 133, 0.1) 100%);
  padding: 10px 15px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
}

.typing-text {
  margin-left: 10px;
  font-size: 14px;
  color: var(--gray);
}

/* ===== Colorful Tags ===== */
.test-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  margin-right: 8px;
  margin-bottom: 8px;
  background: linear-gradient(135deg, rgba(67, 97, 238, 0.2) 0%, rgba(247, 37, 133, 0.2) 100%);
  color: var(--primary-dark);
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 480px) {
  .input-area::before {
    left: 25px;
  }
  
  #user-input {
    padding-left: 40px;
  }
}