.style-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.style-option {
  border: 2px solid #e1e5e9;
  border-radius: 1rem;
  text-align: center;
  transition: all 0.3s ease;
  background: var(--background-color);
  color: var(--text-color-dark);
}

.style-option label {
  cursor: pointer;
  padding: 1.5rem 2rem;
  display: block;
}

.style-option input {
  display: none;
}

.style-option:hover {
  border-color: var(--primary-color);
  transform: translateY(-0.2rem);
}

.style-option:has(input:checked) {
  border-color: var(--primary-color);
  background: var(--primary-color);
  color: white;
}

.style-option i {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  display: block;
}

.result-section {
  margin-top: 3rem;
}

.result-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.result-header h2 {
  font-size: 2.4rem;
  color: var(--text-color-dark);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.result-header i {
  color: var(--primary-color);
}

.variants-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 3rem;
}

.variant-card {
  background: var(--background-color);
  border: 2px solid #e1e5e9;
  border-radius: 1rem;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
}

.variant-card:hover {
  border-color: var(--primary-color);
  box-shadow: 0 0.5rem 2rem rgba(26, 116, 251, 0.1);
}

.variant-card .copy-btn {
  margin-left: auto;
}

.variant-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.variant-style {
  background: var(--primary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 1.2rem;
  font-weight: 600;
  text-transform: uppercase;
}

.variant-stats {
  font-size: 1.2rem;
  color: var(--primary-color);
}

.variant-text {
  font-size: 1.6rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  color: var(--text-color-dark);
}

.variant-improvements {
  margin-bottom: 1rem;
}

.improvements-list {
  list-style: none;
}

.improvements-list li {
  font-size: 1.3rem;
  color: var(--box-text-color);
  margin-bottom: 0.5rem;
  padding-left: 2rem;
  position: relative;
}

.improvements-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #28a745;
  font-weight: bold;
}

.analysis-section,
.tips-section {
  margin-top: 3rem;
}

.section-header {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-color-dark);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-header i {
  color: var(--primary-color);
}

.analysis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: 1.5rem;
}

.analysis-item {
  background: var(--background-color);
  border: 1px solid #e1e5e9;
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
}

.analysis-value {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.analysis-label {
  font-size: 1.3rem;
  color: var(--box-text-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
  gap: 2rem;
}

.tip-category {
  background: var(--background-color);
  border: 1px solid #e1e5e9;
  border-radius: 1rem;
  padding: 2rem;
}

.tip-category h4 {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-color-dark);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tip-list {
  list-style: none;
}

.tip-list li {
  font-size: 1.4rem;
  color: var(--box-text-color);
  margin-bottom: 0.8rem;
  padding-left: 2rem;
  position: relative;
}

.tip-list li::before {
  content: "💡";
  position: absolute;
  left: 0;
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(2rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .tools-box {
    padding: 1rem;
  }

  .card {
    padding: 2rem;
  }

  .tool-heading h1 {
    font-size: 2.4rem;
  }

  .style-selector {
    grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  }
}