@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600&family=Orbitron:wght@400;500;600&display=swap');

:root {
  --bg-color: #1a0e10;
  --primary-color: #2c1a1c;
  --secondary-color: #3a2023;

  --accent-color: #ff3c38;
  --accent-color-2: #ff005e;
  --accent-color-3: #ff7a5a;

  --accent-gradient: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-color-2) 100%);
  --accent-gradient-2: linear-gradient(135deg, var(--accent-color-2) 0%, #ffb6c1 100%);
  --accent-gradient-3: linear-gradient(135deg, var(--accent-color-3) 0%, #ff005e 100%);

  --text-color: #ffffff;
  --text-color-light: rgba(255, 255, 255, 0.6);

  --bot-message-bg: #2c1a1c;
  --user-message-bg: linear-gradient(135deg, #ff3c38 0%, #ff005e 100%);
  --user-message-text: #ffffff;

  --border-radius: 12px;
  --border-radius-sm: 6px;

  --font-family: 'Poppins', sans-serif;
  --tech-font: 'Orbitron', sans-serif;
  --code-font: 'JetBrains Mono', monospace;

  --box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4), 0 3px 8px rgba(0, 0, 0, 0.3);

  --glow-effect: 0 0 15px rgba(255, 60, 56, 0.4);
  --glow-effect-2: 0 0 20px rgba(255, 0, 94, 0.4);
  --glow-effect-3: 0 0 20px rgba(255, 122, 90, 0.4);

  --border-tech: 1px solid rgba(255, 60, 56, 0.2);

  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}


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

html, body {
  height: 100%;
  width: 100%;
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  overflow: hidden;
}

body {
  padding: 15px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: radial-gradient(circle at 20% 30%, rgba(0, 255, 224, 0.08) 0%, transparent 40%), 
              radial-gradient(circle at 80% 70%, rgba(127, 175, 255, 0.08) 0%, transparent 40%);
}

.chat-wrapper {
  width: 100%;
  min-width: 300px;
  max-width: 800px;
  height: 90vh;
  min-height: 500px;
  max-height: 900px;
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: var(--border-tech);
  position: relative;
  backdrop-filter: blur(5px);
}

.chat-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  animation: border-glow 4s infinite alternate;
  z-index: 2;
}

@keyframes border-glow {
  0% { box-shadow: var(--glow-effect); }
  50% { box-shadow: var(--glow-effect-2); }
  100% { box-shadow: var(--glow-effect-3); }
}

.chat-header {
  padding: 20px 25px;
  background: rgba(26, 29, 38, 0.8);
  border-bottom: var(--border-tech);
  text-align: center;
  font-weight: 600;
  font-size: 1.3em;
  color: var(--text-color);
  flex-shrink: 0;
  font-family: var(--tech-font);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
  backdrop-filter: blur(8px);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.chat-header::before {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent-gradient);
  animation: border-glow 4s infinite alternate-reverse;
}

.chat-header span {
  font-weight: 400;
  opacity: 0.8;
  display: block;
  font-size: 0.85em;
  margin-top: 8px;
  font-family: var(--font-family);
  letter-spacing: normal;
  text-transform: none;
  background: var(--accent-gradient-2); 
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding: 2px 10px;
  border-radius: 20px;
}

.chat-container {
  display: flex;
  flex-direction: column;
  height: 78%;
  width: 100%;
  overflow: hidden;
  background: radial-gradient(circle at center, rgba(42, 46, 58, 0.4) 0%, rgba(26, 29, 38, 1) 100%);
}

.chat-box {
  flex-grow: 1;
  padding: 25px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-color) var(--secondary-color);
}

.chat-box::-webkit-scrollbar {
  width: 8px;
}

.chat-box::-webkit-scrollbar-track {
  background: var(--secondary-color);
  border-radius: 10px;
}

.chat-box::-webkit-scrollbar-thumb {
  background-color: var(--accent-color);
  border-radius: 10px;
  border: 2px solid var(--secondary-color);
}

.message {
  padding: 15px 20px;
  border-radius: var(--border-radius);
  max-width: 80%;
  word-wrap: break-word;
  line-height: 1.5;
  position: relative;
  font-size: 0.95em;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  animation: fadeIn 0.4s ease-out;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.bot-message {
  background-color: var(--bot-message-bg);
  color: var(--text-color);
  align-self: flex-start;
  border-bottom-left-radius: var(--border-radius-sm);
  border-left: 3px solid var(--accent-color);
}

.bot-message:hover {
  transform: translateX(3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.user-message {
  background: var(--user-message-bg);
  color: var(--user-message-text);
  align-self: flex-end;
  border-bottom-right-radius: var(--border-radius-sm);
  border-right: 3px solid rgba(255, 255, 255, 0.3);
}

.user-message:hover {
  transform: translateX(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.message-sender {
  font-size: 0.75em;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-color);
  opacity: 0.7;
  display: block;
}

.bot-message .message-sender {
  color: var(--accent-color);
  opacity: 0.9;
}

.user-message .message-sender {
  color: rgba(255, 255, 255, 0.9);
  text-align: right;
}

.input-container {
  display: flex;
  padding: 15px;
  border-top: var(--border-tech);
  background: rgba(26, 29, 38, 0.7);
  flex-shrink: 0;
  backdrop-filter: blur(8px);
  align-items: center;
}

#user-input {
  flex-grow: 1;
  min-width: 50px;
  padding: 14px 20px;
  border: 1px solid rgba(0, 255, 224, 0.4);
  border-radius: var(--border-radius);
  background-color: rgba(42, 46, 58, 0.6);
  color: var(--text-color);
  font-size: 1em;
  outline: none;
  transition: var(--transition);
  font-family: var(--font-family);
}

#user-input:focus {
  border-color: var(--accent-color-2);
  box-shadow: 0 0 0 3px rgba(127, 175, 255, 0.2);
  background-color: rgba(42, 46, 58, 0.8);
}

#user-input::placeholder {
  color: var(--text-color-light);
}

#send-btn {
  padding: 14px 20px;
  background: var(--accent-gradient);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 1em;
  font-weight: 500;
  transition: var(--transition);
  margin-left: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 255, 224, 0.3);
  position: relative;
  overflow: hidden;
  min-width: 60px;
}

#send-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 255, 224, 0.5);
  background: var(--accent-gradient-2);
}

#send-btn:active {
  transform: translateY(0);
}

#send-btn::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(to bottom right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.3) 50%, rgba(255, 255, 255, 0) 100%);
  transform: rotate(30deg);
  transition: all 0.5s ease;
}

#send-btn:hover::after {
  left: 100%;
  top: 100%;
}

#send-btn svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}

#send-btn:hover svg {
  transform: translateX(2px);
}

.typing-indicator {
  display: flex;
  align-items: center;
  padding: 10px 15px;
  background-color: rgba(30, 34, 48, 0.7);
  border-radius: var(--border-radius);
  width: fit-content;
  margin-left: 10px;
}

.typing-indicator span {
  margin-left: 8px;
  color: var(--text-color-light);
}

.typing-indicator::before,
.typing-indicator::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-color);
  animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator::after {
  margin-left: 5px;
  animation-delay: 0.2s;
}

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-5px); }
}

@media (max-width: 768px) {
  body {
    padding: 0;
    align-items: flex-start;
  }
  .chat-wrapper {
    height: 100vh;
    max-height: none;
    border-radius: 0;
  }
  .chat-box {
    padding: 15px;
  }
  .input-container {
    padding: 12px;
  }
  #user-input {
    padding: 12px 15px;
  }
  #send-btn {
    padding: 12px 15px;
  }
  .message {
    max-width: 90%;
    padding: 12px 16px;
  }
}