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

body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  color: #333;
  padding: 2rem 1rem;
}

.container {
  max-width: 700px;
  margin: auto;
  background: white;
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.header-icon {
  display: block;
  width: 80px;
  margin: 0 auto 1.5rem;
}

h1 {
  text-align: center;
  margin-bottom: 2rem;
  color: #0277bd;
  font-size: 1.8rem;
}

label {
  display: block;
  margin: 1rem 0 0.4rem;
  font-weight: 600;
  color: #01579b;
}

input,
select,
textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #90caf9;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #0288d1;
}

.checkbox-group,
.radio-group {
  margin-top: 0.5rem;
}

.checkbox-item,
.radio-item {
  display: flex;
  align-items: center;
  margin: 0.4rem 0;
}

.checkbox-item input,
.radio-item input {
  width: auto;
  margin-right: 0.6rem;
}

button {
  display: block;
  width: 100%;
  padding: 1rem;
  background: #0288d1;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 1.5rem;
  transition: background 0.3s;
}

button:hover {
  background: #0277bd;
}

/* Responsive */
@media (max-width: 600px) {
  .container {
    padding: 1.5rem;
  }

  h1 {
    font-size: 1.5rem;
  }
}