* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  transition: all 0.3s ease-in-out;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

header {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: white;
  padding: 30px;
  text-align: center;
}

header h1 {
  font-size: 2.2em;
  margin-bottom: 10px;
}

header p {
  opacity: 0.9;
  font-size: 1.1em;
}

.form-section {
  padding: 30px;
}

.form-group {
  margin-bottom: 25px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #4f46e5;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.3s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #4f46e5;
}

.btn {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: white;
  border: none;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s;
  width: 100%;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.loading {
  display: none;
  text-align: center;
  padding: 20px;
}

.spinner {
  border: 4px solid #f3f3f3;
  border-top: 4px solid #4f46e5;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto 15px;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.result-section {
  display: none;
  padding: 30px;
  border-top: 3px solid #e5e7eb;
}

.plano-item {
  margin-bottom: 25px;
  padding: 20px;
  background: #f8fafc;
  border-radius: 8px;
  border-left: 4px solid #4f46e5;
}

.plano-item h3 {
  color: #4f46e5;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.plano-item p,
.plano-item ol {
  color: #4b5563;
}

.plano-item ol {
  padding-left: 20px;
}

.plano-item li {
  margin-bottom: 8px;
}

.error {
  background: #fef2f2;
  color: #dc2626;
  padding: 15px;
  border-radius: 8px;
  border-left: 4px solid #dc2626;
  margin: 15px 0;
  display: none;
}

.success {
  background: #f0fdf4;
  color: #16a34a;
  padding: 15px;
  border-radius: 8px;
  border-left: 4px solid #16a34a;
  margin: 15px 0;
  display: none;
}