/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: #f4f4f8;
  color: #222;
  line-height: 1.6;
  padding-bottom: 80px;
}

header {
  background: linear-gradient(135deg, #4c6ef5, #7950f2);
  color: white;
  text-align: center;
  padding: 40px 20px;
}

.logo-img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  margin-bottom: 15px;
}

h1 {
  font-size: 2.5em;
}

.hero {
  padding: 40px 20px;
  text-align: center;
}

.hero h2 {
  font-size: 1.8em;
  margin-bottom: 10px;
}

.chatbot {
  margin-top: 40px;
  min-height: 400px;
  text-align: center;
}

footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  background: #222;
  color: #ccc;
  text-align: center;
  padding: 15px 10px;
  font-size: 14px;
}

@media (max-width: 600px) {
  h1 { font-size: 2em; }
  .hero h2 { font-size: 1.5em; }
}