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

html, body {
  width: 100%;
  height: 100%;
  font-family: "Roboto Mono", monospace;
  /* Set a static background image */
  background: url('/images/background.png') no-repeat center center fixed;
  background-size: cover;
  background-color: #000000;
  color: #ffffff;
}

/**
 * Container for centering content. No animation is applied here,
 * so that the logo and chat container animate independently.
 */
.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translateY(-50px);
  min-height: 100vh;
  width: 90%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem;
  text-align: center;
}

/**
 * Logo element styles. The logo starts slightly scaled down (0.9) and hidden (opacity 0),
 * then fades in with a slight zoom effect over 0.25s, starting after a 0.75s delay.
 * The ease-out timing function makes the zoom effect decelerate smoothly.
 */
.logo {
  max-width: 200px;
  width: 100%;
  height: auto;
  margin-bottom: 60px;
  opacity: 0;
  transform: scale(0.9);
  animation: logoFadeZoom 0.25s ease-out forwards;
  animation-delay: 0.75s;
}

/**
 * Chat container fades in over 0.25s, with a delay of 0.5s.
 */
.chat-container {
  background: #1c1c1c;
  border: 1px solid #333333;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
  overflow: hidden;
  width: 100%;
  color: #ffffff;
  opacity: 0;
  animation: fadeIn 0.25s ease-in forwards;
  animation-delay: 0.5s;
}

.chat-output {
  height: 400px;
  padding: 1rem;
  overflow-y: auto;
  border-bottom: 1px solid #333333;
}

.loading {
  opacity: 0.3;
}

.input-container {
  padding: 1rem;
}

textarea {
  width: 100%;
  min-height: 100px;
  padding: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid #333333;
  border-radius: 4px;
  background: #1f1f1f;
  color: #ffffff;
  resize: vertical;
}

/**
 * Removes the default outline on focus for the textarea.
 */
textarea:focus {
  outline: none;
  border-color: #555555;
}

.message {
  display: flex;
  align-items: flex-start;
  padding-bottom: 15px;
}

.message .sender-label {
  font-weight: bold;
  margin-right: 8px;
  min-width: 100px;
  width: 100px;
  text-align: left;
  word-wrap: break-word;
}

.message .message-text {
  flex: 1;
  text-align: left;
  padding-left: 10px;
}

.button-group {
  display: flex;
  width: 100%;
  justify-content: space-between;
  align-items: center;
}

select {
  padding: 0.5rem;
  border: 1px solid #333333;
  border-radius: 4px;
  background: #1f1f1f;
  color: #ffffff;
}

/**
 * Removes the default outline on focus for the dropdown.
 */
select:focus {
  outline: none;
  border-color: #555555;
}

button {
  padding: 0.5rem 1rem;
  background: #fd5750;
  color: white;
  border: 1px solid #333333;
  border-radius: 4px;
  cursor: pointer;
}

/**
 * Removes the default outline on focus/active state for the button.
 */
button:focus,
button:active {
  outline: none;
  border-color: #555555;
}

/**
 * Keyframes for a simple fade-in effect.
 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/**
 * Keyframes for the logo's fade and zoom in effect.
 */
@keyframes logoFadeZoom {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Responsive design adjustments */
@media (max-width: 600px) {
  .chat-output {
    height: 300px;
  }
  
  .logo {
    max-width: 150px;
    margin-bottom: 30px;
  }
  
  textarea, button, select {
    font-size: 1rem;
    padding: 0.5rem;
  }
} 
}