* { 
  box-sizing: border-box; 
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background-color: #f1f3f4;
}

.container {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
  max-width: 900px;
  margin: 4rem auto;
  border-radius: 10px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  background-color: white;
}

.left-panel, .right-panel {
  flex: 1 1 300px;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.left-panel {
  background: linear-gradient(to bottom right, #21b5a4, #1ba294);
  color: white;
  text-align: center;
}

.left-panel h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.left-panel p {
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.left-panel button {
  padding: 0.75rem 2rem;
  border: 2px solid white;
  border-radius: 25px;
  background: transparent;
  color: white;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

.left-panel button:hover {
  background: white;
  color: #1ba294;
}

.right-panel h2 {
  text-align: center;
  color: #1ba294;
  margin-bottom: 1.5rem;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.social-icons button {
  border: none;
  background: white;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  font-weight: bold;
  cursor: pointer;
}

.divider {
  text-align: center;
  font-size: 0.9rem;
  margin: 1.5rem 0;
  color: #999;
}

.form-group {
  display: flex;
  align-items: center;
  border: 1px solid #eee;
  padding: 0.75rem;
  margin-bottom: 1rem;
  background: #f8fafa;
  border-radius: 5px;
}

.form-group input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 1rem;
  padding-left: 0.5rem;
}

.right-panel button.signup {
  background-color: #1ba294;
  color: white;
  border: none;
  padding: 0.75rem;
  width: 100%;
  font-weight: bold;
  border-radius: 25px;
  cursor: pointer;
  transition: 0.3s;
}

.right-panel button.signup:hover {
  background-color: #188a83;
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
    margin: 2rem;
  }
}