body {
  font-family: 'Inter', sans-serif;
  background-color: #f9fafb;
  margin: 0;
  padding: 0;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.signup-box {
  background: #ffffff;
  padding: 2.5rem;
  border-radius: 12px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.signup-box h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0;
  text-align: center;
}

.subtitle {
  text-align: center;
  font-size: 0.95rem;
  color: #6b7280;
  margin-bottom: 1.5rem;
}

.label {
  font-size: 0.95rem;
  font-weight: 600;
  color: #111827;
  display: block;
  margin-top: 1rem;
  margin-bottom: 0.3rem;
}

.radio-group {
  display: flex;
  gap: 2rem;
  margin-bottom: 1rem;
}

.radio-group label {
  font-size: 0.9rem;
  color: #111827;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  margin-bottom: 0.8rem;
}

.input-wrapper .icon {
  position: absolute;
  left: 12px;
  font-size: 1rem;
  color: #9ca3af;
}

.input-wrapper input {
  width: 100%;
  padding: 0.75rem 0.75rem 0.75rem 2.2rem;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  font-size: 0.95rem;
  color: #111827;
  outline: none;
  background-color: #f9fafb;
}

.input-wrapper input:focus {
  border-color: #2563eb;
  background-color: #fff;
}

.checkbox-group {
  margin: 0.8rem 0 1.2rem 0;
  font-size: 0.85rem;
  color: #111827;
}

.checkbox-group a {
  color: #2563eb;
  text-decoration: none;
}

.btn {
  display: block;
  width: 100%;
  background-color: #2563eb;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem;
  margin-top: 0.5rem;
  cursor: pointer;
  transition: background 0.2s ease;
}

.btn:hover {
  background-color: #1e4fd9;
}

.signin {
  text-align: center;
  font-size: 0.9rem;
  margin-top: 1rem;
  color: #6b7280;
}

.signin a {
  color: #2563eb;
  text-decoration: none;
}