/* Enhanced Docs CSS with Visual Elements */

/* Section Headers */
.section-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  text-align: center;
}

.section-header h2 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-icon {
  font-size: 2rem;
  color: var(--primary);
  background: var(--primary-light);
  padding: 1rem;
  border-radius: 50%;
  width: 4rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.overview {
  text-align: center;
  padding: 1rem 0;
  margin: 0;
}

/* Overview Card */
.overview-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.overview-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.overview-paragraph {
  padding-bottom: 0;
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.highlight-icon {
  color: var(--primary);
  margin-right: 0.5rem;
  font-size: 1.2rem;
}

/* Overview Items */
.overview-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-bottom: 20px;
}

.overview-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.overview-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.overview-title {
  cursor: pointer;
  margin: 0;
  padding: 1.5rem;
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--section-bg);
  border-bottom: 1px solid var(--card-border);
  transition: all 0.3s ease;
}

.overview-title:hover {
  background: var(--section-bg-alt);
}

.title-icon {
  color: var(--primary);
  margin-right: 1rem;
  font-size: 1.5rem;
  width: 2rem;
  text-align: center;
}

.overview-title::after {
  content: "❮";
  display: inline-block;
  transition: transform 0.3s ease;
  transform: rotate(-90deg);
  color: var(--text-muted);
  font-size: 1.2rem;
}

.overview-item.active .overview-title::after {
  content: "❯";
  transform: rotate(90deg);
  color: var(--primary);
}

.overview-content {
  display: none;
  margin: 0;
  padding: 0;
}

.overview-item.active .overview-content {
  display: block;
}

/* Content Grid and Cards */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  padding: 1.5rem;
}

.content-card {
  background: var(--section-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.content-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.content-card h3 {
  color: var(--text-primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.content-card h3 i {
  color: var(--primary);
  font-size: 1.2rem;
}

.content-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

/* Feature Lists */
.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  padding: 0.5rem;
  background: var(--card-bg);
  border-radius: 6px;
  border-left: 3px solid var(--primary);
  transition: all 0.3s ease;
}

.feature-list li:hover {
  background: var(--primary-light);
  transform: translateX(4px);
}

.feature-list li i {
  color: var(--primary);
  margin-top: 0.2rem;
  font-size: 1rem;
  width: 1rem;
  text-align: center;
}

.feature-list li strong {
  color: var(--text-primary);
}

/* Version Cards */
.version-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.version-card {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: 8px;
  padding: 1.5rem;
  position: relative;
  transition: all 0.3s ease;
}

.version-card.primary {
  border-color: var(--primary);
  background: var(--primary-light);
}

.version-card.secondary {
  border-color: var(--secondary);
  background: var(--secondary-light);
}

.version-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.version-card h4 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.version-card h4 i {
  color: var(--primary);
}

.version-card p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.9rem;
}

.version-badge {
  position: absolute;
  top: -8px;
  right: 1rem;
  background: var(--success);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Structure Diagram */
.structure-diagram {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 1.5rem;
  margin-top: 1rem;
}

.folder-structure {
  font-family: 'Courier New', monospace;
  color: var(--text-primary);
}

.folder, .subfolder, .file {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.folder {
  font-weight: bold;
  color: var(--primary);
}

.subfolder {
  margin-left: 2rem;
  color: var(--secondary);
}

.file {
  margin-left: 4rem;
  color: var(--text-secondary);
}

.folder i, .subfolder i, .file i {
  width: 1rem;
  text-align: center;
}

/* Code Example */
.code-example {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 1rem;
}

.code-header {
  background: var(--section-bg);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

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

/* Pricing Cards */
.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.pricing-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.pricing-card h4 {
  margin: 0;
  color: var(--text-primary);
  font-size: 0.9rem;
}

/* Tab Container */
.tab-container {
  padding-top: 20px;
  padding-bottom: 20px;
}

.tab-description {
  text-align: center;
  margin-bottom: 2rem;
}

.tab-title {
  text-align: center;
  margin: 0 0 1rem 0;
  font-size: 1.5rem;
  color: var(--text-primary);
}

.tab-paragraph {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 0;
}

/* Tab Headers */
.tab-headers {
  display: flex;
  border-bottom: 2px solid var(--card-border);
  margin: 20px 0;
  gap: 5px;
  overflow-x: auto;
}

.tab-header {
  padding: 12px 24px;
  cursor: pointer;
  flex: 1 1 auto;
  background: var(--primary);
  color: white;
  border: 1px solid var(--primary);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  min-width: 120px;
  white-space: nowrap;
}

.tab-header:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.tab-header.active {
  background: var(--card-bg);
  color: var(--text-primary);
  border-bottom: 2px solid var(--card-bg);
  margin-bottom: -2px;
}

.tab-header i {
  font-size: 1rem;
}

/* Option Items */
.option-items {
  display: flex;
  padding: 0 1rem;
}

.option-item {
  display: none;
  width: 100%;
}

.option-item.active {
  display: block;
}

.option-title {
  text-align: center;
  margin: 0 0 2rem 0;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 1.5rem;
}

.option-title i {
  color: var(--primary);
  font-size: 2rem;
}

/* Implementation Steps */
.implementation-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.step-card {
  display: flex;
  gap: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
  position: relative;
}

.step-card:hover {
  box-shadow: var(--shadow);
  transform: translateX(4px);
}

.step-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: 12px 0 0 12px;
}

.step-number {
  background: var(--primary);
  color: white;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-content h4 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.step-content h4 i {
  color: var(--primary);
}

.step-content p {
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* Interface Options */
.interface-options {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.interface-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--section-bg);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  transition: all 0.3s ease;
}

.interface-option:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.interface-option i {
  color: var(--primary);
  font-size: 1.1rem;
}

.interface-option span {
  color: var(--text-primary);
  font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
  
  .version-cards {
    grid-template-columns: 1fr;
  }
  
  .pricing-cards {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .tab-headers {
    flex-direction: column;
    gap: 0;
  }
  
  .tab-header {
    border-radius: 0;
    min-width: auto;
  }
  
  .step-card {
    flex-direction: column;
    gap: 1rem;
  }
  
  .interface-options {
    flex-direction: column;
  }
  
  .section-header {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .section-icon {
    width: 3rem;
    height: 3rem;
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .pricing-cards {
    grid-template-columns: 1fr;
  }
  
  .overview-card {
    padding: 1.5rem;
  }
  
  .content-card {
    padding: 1rem;
  }
  
  .step-card {
    padding: 1rem;
  }
}

/* Stack Section Layout for Deep Dives */
.stack-section {
  padding: 4rem 0 4rem 0;
  background: var(--section-bg-alt);
}

.stack-section-content {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  justify-content: center;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.stack-card.glass-card {
  background: var(--glass);
  border: 1.5px solid var(--glass-border);
  border-radius: 1.5rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
  padding: 2.5rem 2rem;
  min-width: 0;
  width: 50%;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s cubic-bezier(.4,2,.6,1), box-shadow 0.25s cubic-bezier(.4,2,.6,1), border-color 0.2s;
  position: relative;
  z-index: 2;
  contain: layout style paint;
}

.stack-card.glass-card:hover, .stack-card.glass-card:focus-within {
  transform: translateY(-8px) scale(1.04);
  box-shadow: 0 16px 48px rgba(0,0,0,0.18);
  border-color: var(--primary);
  background: var(--glass-hover);
}

.stack-section-text {
  width: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.5rem 0 2.5rem 0;
  align-items: flex-start;
  gap: 1.5rem;
}

.stack-section-text h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stack-section-text p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
  max-width: 90%;
}

@media (max-width: 1024px) {
  .stack-section-content {
    flex-direction: column;
    gap: 2rem;
    align-items: stretch;
  }
  .stack-card.glass-card, .stack-section-text {
    width: 100%;
    min-width: 0;
    padding: 2rem 0.5rem;
  }
  .stack-section-text {
    padding: 1.5rem 0 0 0;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .stack-section {
    padding: 2rem 0 2rem 0;
  }
  .stack-card.glass-card {
    padding: 1.25rem 0.25rem;
    min-height: 180px;
  }
  .stack-section-text h3 {
    font-size: 1.25rem;
  }
  .stack-section-text p {
    font-size: 1rem;
    max-width: 100%;
  }
}