/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #ec4899;
  --accent: #06b6d4;
  --text: #1f2937;
  --text-muted: #6b7280;
  --white: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Glassmorphism Card */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

.btn-primary:focus-visible {
  outline: 3px solid rgba(99, 102, 241, 0.5);
  outline-offset: 2px;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-secondary:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.4);
  outline-offset: 2px;
}

.btn-large {
  padding: 16px 36px;
  font-size: 18px;
}

.btn-small {
  padding: 8px 16px;
  font-size: 14px;
  min-width: 120px;
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Section Titles */
.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: #94a3b8;
  text-align: center;
  margin-bottom: 48px;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-decoration {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.floating-circle {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  opacity: 0.15;
  filter: blur(40px);
}

.circle-1 {
  width: 400px;
  height: 400px;
  top: -100px;
  left: -100px;
  animation: float 6s ease-in-out infinite;
}

.circle-2 {
  width: 300px;
  height: 300px;
  top: 40%;
  right: -80px;
  animation: float 8s ease-in-out infinite reverse;
}

.circle-3 {
  width: 250px;
  height: 250px;
  bottom: -50px;
  left: 30%;
  animation: float 7s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-30px) rotate(5deg); }
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px 0;
  position: relative;
  z-index: 10;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
}

.logo-icon {
  font-size: 1.8rem;
}

/* Hero Content */
.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding-top: 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(99, 102, 241, 0.2);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 24px;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #94a3b8;
  max-width: 700px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Statistics Section */
.stats {
  padding: 60px 0;
  position: relative;
  z-index: 10;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.stat-card {
  padding: 32px 24px;
  text-align: center;
}

.stat-value {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 1rem;
  color: #94a3b8;
  font-weight: 500;
}

/* Categories Section */
.categories {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.category-card {
  padding: 36px 32px;
  text-align: center;
}

.category-icon {
  font-size: 3.5rem;
  margin-bottom: 20px;
}

.category-card h4 {
  font-size: 1.375rem;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 12px;
}

.category-card p {
  color: #94a3b8;
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

/* Tools Section */
.tools {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.tool-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.tool-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 8px;
  margin-bottom: 20px;
  width: fit-content;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.tool-name {
  font-size: 1.375rem;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 12px;
}

.tool-description {
  color: #94a3b8;
  font-size: 1rem;
  margin-bottom: 24px;
  flex-grow: 1;
  line-height: 1.6;
}

.tool-card .btn-primary {
  width: 100%;
}

/* Collections Section */
.collections {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.collections-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.collection-card {
  padding: 32px 28px;
  text-align: center;
}

.collection-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.collection-card h4 {
  font-size: 1.25rem;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 10px;
}

.collection-card p {
  color: #94a3b8;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

/* Comparison Section */
.compare {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.compare-controls {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.tool-selectors {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.tool-select {
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-size: 1rem;
  font-family: inherit;
  min-width: 200px;
  backdrop-filter: blur(10px);
  cursor: pointer;
  transition: all 0.3s ease;
}

.tool-select option {
  background: #1e293b;
  color: #ffffff;
  padding: 8px;
}

.tool-select:focus {
  outline: 2px solid var(--primary);
  border-color: var(--primary);
}

.comparison-table {
  margin-top: 30px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 32px;
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.comparison-table.hidden {
  display: none;
}

.comparison-empty {
  text-align: center;
  color: #94a3b8;
  font-size: 1.1rem;
}

.comparison-table-content {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}

.comparison-table-content th,
.comparison-table-content td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-table-content th {
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.comparison-feature {
  color: #cbd5e1;
  font-weight: 600;
}

.comparison-tool {
  color: var(--primary);
}

.comparison-table-content td {
  color: #e2e8f0;
  vertical-align: top;
}

.comparison-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Why Use AI Section */
.why-ai {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.why-card {
  padding: 36px 32px;
  text-align: center;
}

.why-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.why-card h4 {
  font-size: 1.25rem;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 12px;
}

.why-card p {
  color: #94a3b8;
  font-size: 1rem;
  line-height: 1.6;
}

/* Trends Section */
.trends {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.trends-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.trend-card {
  padding: 36px 32px;
}

.trend-card h4 {
  font-size: 1.5rem;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 16px;
}

.trend-card p {
  color: #94a3b8;
  font-size: 1rem;
  line-height: 1.7;
}

/* Footer */
.footer {
  padding: 60px 0 32px;
  position: relative;
  z-index: 10;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand {
  max-width: 400px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 1rem;
  line-height: 1.6;
}

.footer-links h5 {
  font-size: 1.125rem;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-links a:focus-visible {
  outline: 2px solid rgba(99, 102, 241, 0.5);
  outline-offset: 2px;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  color: #64748b;
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .btn-large {
    padding: 14px 28px;
    font-size: 16px;
  }
  
  .navbar {
    padding: 24px 0;
  }
  
  .logo {
    font-size: 1.25rem;
  }
  
  .hero-content {
    padding-top: 40px;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn-large {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.875rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .section-subtitle {
    font-size: 1rem;
  }
  
  .tools-grid, .categories-grid, .why-grid, .trends-grid {
    grid-template-columns: 1fr;
  }
}

/* Smooth Scroll */
html {
  scroll-behavior: smooth;
}

/* Tool Card - Favorite Button */
.tool-card {
  position: relative;
}

.favorite-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.favorite-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.1);
}

.favorite-btn .heart-icon {
  font-size: 1.25rem;
  transition: transform 0.3s ease;
}

.favorite-btn.favorited .heart-icon {
  content: '❤️';
  animation: pulse 0.5s ease;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 32px;
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.empty-state h4 {
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 8px;
}

.empty-state p {
  color: #94a3b8;
  font-size: 1.125rem;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  padding: 16px 32px;
  border-radius: 12px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  transform: translateY(150%);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Focus styles for accessibility */
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(99, 102, 241, 0.6);
  outline-offset: 2px;
}