/* Professional Features Page Styling */

/* Fix iOS Safari double-tap issue */
* {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* Disable hover effects on touch devices */
@media (hover: none) and (pointer: coarse) {
  .feature-card:hover,
  .feature-list li:hover,
  .button:hover {
    transform: none !important;
    box-shadow: initial !important;
    background: initial !important;
    color: initial !important;
    opacity: initial !important;
  }
}

/* Reduce default theme spacing */
.section .content {
  margin-bottom: 0 !important;
}

.section {
  padding-bottom: 0 !important;
  margin-bottom: 0 !important;
}

/* Very aggressive approach - target pages with features.css loaded */
body:has(link[href*="features.css"]) .section {
  padding-bottom: 0 !important;
  margin-bottom: 0 !important;
}

body:has(link[href*="features.css"]) .section .content {
  margin-bottom: 0 !important;
  padding-bottom: 0 !important;
}

/* Target the main section wrapper specifically for features page */
body .section:has(.features-section),
body .section .content:has(.features-section) {
  padding-bottom: 0 !important;
  margin-bottom: 0 !important;
}




/* Target everything on pages with features sections */
.features-section ~ * {
  margin-top: 0 !important;
}

/* Modern gradient backgrounds */
.gradient-hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  overflow: hidden;
}

.gradient-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

/* Enhanced section styling */
.features-section {
  padding: 4rem 0;
  position: relative;
  background-attachment: fixed;
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
}

.features-section:last-child {
  margin-bottom: 0;
  padding-bottom: 2rem;
}

/* Remove spacing from parent containers after features content */
.features-section:last-child {
  margin-bottom: 0 !important;
}


.features-section .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.features-section:nth-child(even) {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.features-section:nth-child(odd) {
  background: #ffffff;
}

.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(102, 126, 234, 0.03)"/></svg>');
  pointer-events: none;
}

/* Professional card design */
.feature-card {
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  border: none;
  border-radius: 20px;
  overflow: hidden;
  background: #ffffff !important;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  height: 100%;
  position: relative;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Ensure all content areas have white background */
.feature-card-content {
  background: #ffffff !important;
}

.feature-card .card-content {
  background: #ffffff !important;
}

.feature-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--card-accent, #667eea), var(--card-accent-secondary, #764ba2));
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 100%);
  pointer-events: none;
  border-radius: 20px;
}

/* Card header improvements */
.feature-card-header {
  padding: 2.5rem 2rem 1.5rem;
  background: linear-gradient(135deg, var(--card-bg, #667eea) 0%, var(--card-bg-secondary, #764ba2) 100%);
  position: relative;
  overflow: hidden;
}

.feature-card-header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: shimmer 3s ease-in-out infinite;
}

.feature-card-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

@keyframes shimmer {
  0%, 100% { transform: translate(-50%, -50%) rotate(0deg); }
  50% { transform: translate(-50%, -50%) rotate(180deg); }
}

.feature-card-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(20px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
}

.feature-card:hover .feature-card-icon {
  transform: scale(1.1) rotate(5deg);
  background: rgba(255, 255, 255, 0.3);
}

.feature-card-title {
  color: #ffffff !important;
  font-weight: 700;
  font-size: 1.4rem;
  margin-bottom: 0;
  text-align: center;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  letter-spacing: -0.025em;
}

/* Card content improvements */
.feature-card-content {
  padding: 2.5rem 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
}

.feature-card-description {
  color: #4a5568;
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  flex-grow: 1;
  font-weight: 400;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-list li {
  padding: 0.75rem 0;
  color: #4a5568;
  font-size: 1rem;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
  border-radius: 8px;
  padding-left: 1rem;
  margin: 0.25rem -1rem;
}

.feature-list li:hover {
  color: #2d3748;
  background: rgba(102, 126, 234, 0.05);
  transform: translateX(4px);
}

.feature-list li i {
  margin-right: 1rem;
  width: 20px;
  flex-shrink: 0;
  font-size: 1.1rem;
}

/* Section headers */
.section-header {
  text-align: center;
  margin-bottom: 5rem;
  position: relative;
}

.section-title {
  font-size: 3rem;
  font-weight: 800;
  color: #1a202c;
  margin-bottom: 1.5rem;
  position: relative;
  background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.35rem;
  color: #718096;
  font-weight: 400;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Information boxes */
.info-box {
  background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 2.5rem;
  margin-top: 4rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.info-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2);
}

.info-box::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="1" fill="rgba(102, 126, 234, 0.1)"/><circle cx="80" cy="80" r="1" fill="rgba(118, 75, 162, 0.1)"/></svg>');
  pointer-events: none;
}

.info-box-text {
  color: #4a5568;
  font-size: 1.2rem;
  line-height: 1.8;
  margin: 0;
  text-align: center;
  font-weight: 500;
  position: relative;
  z-index: 1;
}

.info-box-icon {
  color: #667eea;
  margin-right: 1rem;
  font-size: 1.3rem;
}

/* Color schemes for different sections */
.ai-assisted {
  --card-bg: #667eea;
  --card-bg-secondary: #764ba2;
  --card-accent: #667eea;
  --card-accent-secondary: #764ba2;
}

.dataset-management {
  --card-bg: #10b981;
  --card-bg-secondary: #059669;
  --card-accent: #10b981;
  --card-accent-secondary: #059669;
}

.labeling-tasks {
  --card-bg: #f59e0b;
  --card-bg-secondary: #d97706;
  --card-accent: #f59e0b;
  --card-accent-secondary: #d97706;
}

.teamwork {
  --card-bg: #3b82f6;
  --card-bg-secondary: #2563eb;
  --card-accent: #3b82f6;
  --card-accent-secondary: #2563eb;
}

/* Responsive improvements */
@media (max-width: 1024px) {
  .features-section {
    padding: 0;
  }
  
  .section-title {
    font-size: 2.5rem;
  }
  
  .feature-card-header {
    padding: 2rem 1.5rem 1.25rem;
  }
  
  .feature-card-content {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 768px) {
  .features-section {
    padding: 0rem 0;
  }
  
  .section-header {
    margin-bottom: 3rem;
  }
  
  .section-title {
    font-size: 2.25rem;
  }
  
  .section-subtitle {
    font-size: 1.15rem;
  }
  
  .feature-card-header {
    padding: 1.5rem 1.25rem 1rem;
  }
  
  .feature-card-content {
    padding: 1.5rem 1.25rem;
  }
  
  .feature-card-title {
    font-size: 1.25rem;
  }
  
  .feature-card-icon {
    width: 60px;
    height: 60px;
  }
  
  .feature-card-description {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }
  
  .info-box {
    padding: 2rem 1.5rem;
    margin-top: 2rem;
  }
  
  .info-box-text {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.875rem;
  }
  
  .feature-card {
    border-radius: 16px;
  }
  
  .feature-card-header {
    padding: 0rem 1rem 0.75rem;
  }
  
  .feature-card-content {
    padding: 1.25rem 1rem;
  }
  
  .feature-card-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 1rem;
  }
  
  .feature-list li {
    padding: 0.5rem 0;
    font-size: 0.95rem;
  }
}

/* Animation for cards */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-card {
  animation: slideInUp 0.8s ease-out forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

/* Loading state */
.feature-card.loading {
  opacity: 0;
  transform: translateY(40px);
}

/* Enhanced typography */
body.loaded {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.feature-card-title,
.section-title {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 700;
  letter-spacing: -0.025em;
}

/* Accessibility improvements */
.feature-card:focus-within {
  outline: 3px solid #667eea;
  outline-offset: 3px;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .feature-card {
    border: 2px solid #000;
  }
  
  .section-title {
    color: #000 !important;
    -webkit-text-fill-color: #000 !important;
  }
  
  .feature-card-description,
  .feature-list li {
    color: #000;
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .feature-card,
  .feature-card-icon,
  .feature-list li {
    transition: none !important;
    animation: none !important;
  }
  
  .feature-card:hover {
    transform: none !important;
  }
  
  .features-section::before {
    animation: none !important;
  }
  
  .feature-card-header::before {
    animation: none !important;
  }
}

/* Print styles */
@media print {
  .feature-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }
  
  .features-section {
    padding: 0;
  }
}

/* Enhanced column sizing for larger screens */
@media (min-width: 1200px) {
  /* For 3-column layouts, make columns wider on large screens */
  .column.is-4 {
    flex: none;
    width: 30%;
    max-width: 380px;
  }
  
  /* Add more spacing between columns */
  .columns.is-multiline {
    margin-left: -1.5rem;
    margin-right: -1.5rem;
  }
  
  .columns.is-multiline > .column {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1400px) {
  /* For very large screens, make 3-column layouts even more spacious */
  .column.is-4 {
    width: 31%;
    max-width: 420px;
  }
}