/* CNFT.dev Frontend Styles */
/* CSS Variables for theming */
:root {
  --primary-color: #3b82f6;
  --secondary-color: #1e40af;
  --background: #0f172a;
  --surface: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #334155;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
}

/* Base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
}

/* Navigation */
.navbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.navbar .navbar-brand .navbar-item {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
}
.navbar .navbar-menu {
  display: flex;
  gap: 2rem;
}
.navbar .navbar-menu .navbar-item {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}
.navbar .navbar-menu .navbar-item:hover {
  color: var(--text-primary);
}
.navbar .navbar-menu .navbar-item.active {
  color: var(--primary-color);
}

/* Main content */
.main-content {
  min-height: calc(100vh - 140px);
  padding: 2rem;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
}

/* Home page */
.hero-section {
  text-align: center;
  padding: 3rem 0;
}
.hero-section h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-section p {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}

.stat-card {
  background: var(--surface);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  text-align: center;
}
.stat-card h3 {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}
.stat-card .stat-value {
  font-size: 2rem;
  font-weight: bold;
  color: var(--primary-color);
}

/* Loading components */
.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
}
.loading-spinner .spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}
.loading-spinner p {
  color: var(--text-secondary);
}

.loading-initial {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--background);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.loading-card {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.loading-card .loading-skeleton {
  height: 1rem;
  background: linear-gradient(90deg, var(--border) 25%, var(--surface) 50%, var(--border) 75%);
  background-size: 200% 100%;
  border-radius: 4px;
  margin-bottom: 0.75rem;
  animation: shimmer 2s infinite linear;
}
.loading-card .loading-skeleton.short {
  width: 60%;
}

/* Collections page */
.search-section {
  margin: 2rem 0;
}
.search-section .search-input {
  width: 100%;
  max-width: 500px;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 1rem;
}
.search-section .search-input::placeholder {
  color: var(--text-secondary);
}
.search-section .search-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.collections-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.collection-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}
.collection-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary-color);
}
.collection-card .collection-preview {
  height: 160px;
  background: var(--background);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.collection-card .collection-preview .pfp-samples {
  display: flex;
  gap: 0.5rem;
}
.collection-card .collection-preview .pfp-samples .pfp-sample {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  opacity: 0.8;
}
.collection-card .collection-preview .pfp-samples .pfp-sample:nth-child(1) {
  background: linear-gradient(135deg, #3b82f6, #1e40af);
}
.collection-card .collection-preview .pfp-samples .pfp-sample:nth-child(2) {
  background: linear-gradient(135deg, #10b981, #059669);
}
.collection-card .collection-preview .pfp-samples .pfp-sample:nth-child(3) {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}
.collection-card .collection-info {
  padding: 1.5rem;
}
.collection-card .collection-info h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}
.collection-card .collection-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Analytics page */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.chart-card {
  background: var(--surface);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.chart-card h3 {
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}
.chart-card .chart-placeholder {
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: var(--background);
  border-radius: 8px;
}

/* Footer */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
}
.footer .footer-content {
  max-width: 1200px;
  margin: 0 auto;
}
.footer .footer-content p {
  color: var(--text-secondary);
  margin: 0.5rem 0;
}

/* 404 page */
.not-found {
  text-align: center;
  padding: 4rem 2rem;
}
.not-found h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--error);
}
.not-found p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}
.not-found a {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 1.1rem;
}
.not-found a:hover {
  text-decoration: underline;
}

/* Animations */
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}
/* Responsive design */
@media (max-width: 768px) {
  .navbar {
    padding: 1rem;
    flex-direction: column;
    gap: 1rem;
  }
  .navbar .navbar-menu {
    gap: 1rem;
  }
  .main-content {
    padding: 1rem;
  }
  .hero-section h1 {
    font-size: 2rem;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .charts-grid {
    grid-template-columns: 1fr;
  }
}