* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  background: linear-gradient(135deg, #23272f 0%, #343541 100%);
  color: #fff;
  font-family: 'Inter', 'Poppins', sans-serif;
  overflow-x: hidden;
  overflow-y: auto;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Branding row at the top, scrolls with page, NO navbar effect */
.branding-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.6rem 0 0.6rem 1.6rem;
  width: auto;
  background: transparent;
  box-shadow: none;
  border-bottom: none;
}

.logo {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 4px 24px rgba(76, 110, 245, 0.12);
}

.brand-name {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 2.7rem;
  background: linear-gradient(135deg, #4f9fff, #9c7aff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 1.5px;
  user-select: none;
  line-height: 1;
}

/* Chat container and rest of your styles remain unchanged */
.chat-outer {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  height: 100vh;
  width: 100vw;
  padding-top: 0;
  padding-bottom: 0;
  position: relative;
}

/* Ensure chat-container fills available space above input */
.chat-container {
  width: 100%;
  max-width: 720px;
  flex: 1 1 auto;
  background: rgba(44, 46, 56, 0.75);
  border-radius: 1.5rem;
  margin: 0 auto;
  padding: 2rem 1.2rem 1rem 1.2rem;
  box-shadow: 0 8px 32px rgba(20, 20, 40, 0.14);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  scroll-behavior: smooth;
  min-height: 60vh;
  max-height: none;
  backdrop-filter: blur(8px);
}

/* Spacer to ensure input bar never overlaps chat on any device */
.input-area-spacer {
  height: 100px;
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .branding-row {
    gap: 0.7rem;
    padding: 1.2rem 0 0.5rem 1.1rem;
  }
  .logo {
    width: 56px;
    height: 56px;
    border-radius: 12px;
  }
  .brand-name {
    font-size: 2.1rem;
    letter-spacing: 1px;
  }
  .chat-container, .input-area {
    max-width: 100vw;
    border-radius: 0.5rem;
    padding-left: 0.3rem;
    padding-right: 0.3rem;
  }
  .input-area-spacer {
    height: 120px;
  }
}

/* Input bar at the bottom, always above chat */
.input-area {
  width: 100%;
  max-width: 720px;
  background: none;
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  z-index: 20;
  padding: 0 1rem 1.2rem 1rem;
}

.input-container {
  display: flex;
  align-items: center;
  background: rgba(44, 46, 56, 0.90);
  border-radius: 1.2rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.12);
  padding: 0.25rem 0.5rem;
}

input[type="text"] {
  flex: 1;
  padding: 1rem 1.2rem;
  font-size: 1.1rem;
  background: transparent;
  border: none;
  color: #fff;
  outline: none;
  border-radius: 1.2rem;
}

input[type="text"]:focus {
  background: rgba(44, 46, 56, 0.98);
}

button {
  background: linear-gradient(135deg, #4f9fff 60%, #9c7aff 100%);
  color: white;
  border: none;
  padding: 0.7rem 0.9rem;
  border-radius: 0.9rem;
  cursor: pointer;
  margin-left: 0.5rem;
  transition: background 0.2s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

button:hover {
  background: linear-gradient(135deg, #2563eb 70%, #7a5cff 100%);
  transform: scale(1.07);
}

.welcome-message {
  text-align: center;
  margin-bottom: 1.5rem;
  opacity: 0.92;
  transition: opacity 0.3s, max-height 0.3s;
}

.welcome-message[style*="display: none"] {
  opacity: 0;
  max-height: 0;
  margin: 0;
  padding: 0;
}

.welcome-message h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  background: linear-gradient(135deg, #4f9fff, #9c7aff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-message p {
  font-size: 1.05rem;
  opacity: 0.8;
}

.disclaimer {
  font-size: 0.9rem;
  opacity: 0.65;
  margin-top: 0.3rem;
  line-height: 1.4;
}

.message-row {
  display: flex;
  width: 100%;
}

.message-row.user {
  justify-content: flex-end;
}

.message-row.bot {
  justify-content: flex-start;
}

.message {
  max-width: 85%;
  padding: 1rem 1.3rem;
  border-radius: 1.2rem;
  font-size: 1.05rem;
  line-height: 1.6;
  animation: fadeIn 0.3s ease-in;
  white-space: pre-wrap;
  word-wrap: break-word;
  background: rgba(60, 64, 90, 0.85);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  transition: background 0.2s;
}

.message.user {
  background: linear-gradient(135deg, #4f9fff 60%, #9c7aff 100%);
  color: #fff;
  border-bottom-right-radius: 0.3rem;
}

.message.bot {
  background: rgba(44, 46, 56, 0.94);
  color: #fff;
  border-bottom-left-radius: 0.3rem;
}

.time-display {
  font-style: italic;
  color: #a0aec0;
  font-size: 0.8rem;
  margin-top: 0.3rem;
  margin-left: 0.7rem;
}

.typing-indicator {
  display: flex;
  align-items: center;
  background: rgba(44, 46, 56, 0.94);
  padding: 1rem 1.3rem;
  border-radius: 1.2rem;
  width: fit-content;
  gap: 3px;
}

.typing-indicator span {
  height: 8px;
  width: 8px;
  margin: 0 2px;
  background-color: #b5b7c2;
  border-radius: 50%;
  display: inline-block;
  animation: bounce 1.5s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) { animation-delay: 0s; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes bounce {
  0%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-8px); }
}

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

/* Scrollbar Styling */
.chat-container::-webkit-scrollbar {
  width: 7px;
}
.chat-container::-webkit-scrollbar-thumb {
  background: #555a6a;
  border-radius: 4px;
}