frontend/src/App.css

/* =================================
    Global Styles & CSS Variables
    ================================= */
:root {
  --primary-color: #22c55e; /* Green for accents */
  --background-color: #f0f2f5; /* Light grey for chat background */
  --card-background-color: #ffffff; /* White for cards/forms */
  --text-color: #1c1e21; /* Dark grey for text */
  --text-secondary-color: #65676b;
  --white-color: #ffffff;
  --border-color: #e5e7eb;
  --header-height: 65px;
  --font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
}

body, html, #root {
  height: 100%;
  margin: 0;
  font-family: var(--font-family);
  background-color: var(--background-color);
  color: var(--text-color);
}

/* =================================
    Main App Layout
    ================================= */
.app-wrapper {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.main-content {
  flex-grow: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

/* =================================
    Header
    ================================= */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
  background-color: var(--card-background-color);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
  flex-shrink: 0;
}

.logo {
  display: flex; /* Make the logo container a flex container */
  align-items: center; /* Vertically align items */
  gap: 10px; /* Add space between Dobby text and logo */
}

.logo .brand-names {
  display: flex; /* Ensure Dobby and GUVI Assistant stack vertically */
  flex-direction: column;
}

.logo .main-brand {
  font-size: 1.8em;
  font-weight: bold;
}

.logo .sub-brand {
  font-size: 0.9em;
  color: var(--text-secondary-color);
}

.app-header nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* =================================
    Buttons & Links
    ================================= */
.link-green {
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s ease;
}
.link-green:hover {
  opacity: 0.8;
}

.btn-solid-green {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1em;
  font-weight: 600;
  text-decoration: none;
  background-color: var(--primary-color);
  color: var(--white-color);
  transition: background-color 0.2s ease;
}
.btn-solid-green:hover {
  background-color: #1e9d4e;
}
.btn-solid-green.full-width {
  width: 100%;
  padding: 0.8rem;
  font-size: 1.1em;
}

/* =================================
    Auth Forms (Login/Sign Up)
    ================================= */
.auth-container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-grow: 1;
  padding: 2rem;
}

.auth-form {
  width: 100%;
  max-width: 400px;
  padding: 2.5rem;
  background-color: var(--card-background-color);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.auth-form h2 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2em;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-sizing: border-box;
}

.error-message {
  color: #d93025;
  text-align: center;
  margin: 1rem 0;
}

.auth-switch {
  text-align: center;
  margin-top: 1.5rem;
}

.auth-switch a {
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
}

/* =================================
    Chat Interface
    ================================= */
.chat-main {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

.chat-messages {
  flex-grow: 1;
  padding: 1.5rem;
  overflow-y: auto; /* This enables the scrollbar */
}

/* Custom Scrollbar Styling */
.chat-messages::-webkit-scrollbar {
  width: 8px;
}
.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}
.chat-messages::-webkit-scrollbar-thumb {
  background-color: #ccc;
  border-radius: 10px;
  border: 2px solid var(--background-color);
}
.chat-messages::-webkit-scrollbar-thumb:hover {
  background-color: #aaa;
}

.empty-chat-placeholder {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  color: var(--text-secondary-color);
  text-align: center;
}
.empty-chat-placeholder h1 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.message-wrapper {
  display: flex;
  align-items: flex-start;
  margin-bottom: 1rem;
  max-width: 85%;
}

.chat-avatar {
  font-size: 1.5rem;
  margin-right: 0.75rem;
}

.message-bubble {
  padding: 0.75rem 1rem;
  border-radius: 18px;
  line-height: 1.4;
  white-space: pre-wrap;
}

.message-wrapper.user {
  margin-left: auto;
  flex-direction: row-reverse;
}
.message-wrapper.user .chat-avatar {
  margin-left: 0.75rem;
  margin-right: 0;
}
.message-wrapper.user .message-bubble {
  background-color: var(--primary-color);
  color: var(--white-color);
  border-bottom-right-radius: 4px;
}

.message-wrapper.assistant .message-bubble {
  background-color: var(--card-background-color);
  border: 1px solid var(--border-color);
  border-bottom-left-radius: 4px;
}

/* =================================
    Chat Input Area
    ================================= */
.chat-input-area {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background-color: var(--card-background-color);
}

.chat-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.chat-form input[type="text"] {
  flex-grow: 1;
  padding: 0.8rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background-color: var(--background-color);
  font-size: 1rem;
}
.chat-form input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-color);
}

.button-container {
  display: flex;
  align-items: center;
}

/* Voice and Send Button Styling */
.voice-button, .send-button {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s, color 0.2s;
}

.voice-button svg, .send-button svg {
  width: 28px; /* Increased size */
  height: 28px;
}

.voice-button:hover, .send-button:hover:not(:disabled) {
  background-color: var(--background-color);
}

.voice-button.recording {
  color: var(--primary-color);
  animation: pulse 1.5s infinite;
}

.send-button {
  color: var(--primary-color);
}

.send-button:disabled {
  color: #ccc;
  cursor: not-allowed;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.header-logo {
  height: 40px; /* Adjust size as needed */
  width: auto;
  /* Removed margin-right as gap on parent .logo handles spacing */
}

.avatar-image {
  height: 32px; /* Adjust size as needed */
  width: 32px;
  border-radius: 50%;
}