.cool-sites-page {
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.cool-sites-body {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

.cool-sites-aside {
  width: 16rem;
  flex-shrink: 0;
  display: none;
  flex-direction: column;
  background: #fff;
  border-right: 1px solid #f3f4f6;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  z-index: 20;
}

@media (min-width: 768px) {
  .cool-sites-aside {
    display: flex;
  }
}

.cool-sites-aside-head {
  padding: 1rem;
  background: #f9fafb;
  border-bottom: 1px solid #f3f4f6;
}

.cool-sites-aside-head h2 {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 700;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cool-sites-aside-nav {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 0;
}

.cool-sites-aside-nav a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  color: #4b5563;
  border-right: 3px solid transparent;
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
}

.cool-sites-aside-nav a:hover {
  background: #f9fafb;
  color: #2563eb;
}

.cool-sites-aside-nav a.sidebar-active {
  background: #eff6ff;
  color: #2563eb;
  border-right-color: #2563eb;
}

.cool-sites-aside-nav a i {
  width: 1.5rem;
  text-align: center;
}

.cool-sites-aside-foot {
  padding: 1rem;
  border-top: 1px solid #f3f4f6;
  font-size: 0.75rem;
  color: #6b7280;
  text-align: center;
}

.cool-sites-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 0;
  overflow: hidden;
  background: #f9fafb;
}

.cool-sites-mobile-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  z-index: 10;
}

@media (min-width: 768px) {
  .cool-sites-mobile-bar {
    display: none;
  }
}

.cool-sites-mobile-bar button {
  color: #6b7280;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

.cool-sites-mobile-bar button:hover {
  color: #374151;
}

.cool-sites-content {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  scroll-behavior: smooth;
}

@media (min-width: 640px) {
  .cool-sites-content {
    padding: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .cool-sites-content {
    padding: 2rem;
  }
}

.cool-sites-section {
  margin-bottom: 3rem;
  scroll-margin-top: 1.25rem;
}

.cool-sites-section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: #1f2937;
  margin: 0 0 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #e5e7eb;
}

.cool-sites-section-title i {
  color: #3b82f6;
}

.cool-sites-group-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: #4b5563;
  margin: 1.5rem 0 1rem;
  padding-left: 0.5rem;
  border-left: 4px solid #60a5fa;
}

.cool-sites-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .cool-sites-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cool-sites-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .cool-sites-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.cool-sites-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  height: 100%;
  padding: 1rem;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  text-decoration: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.cool-sites-card:hover {
  border-color: #60a5fa;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
}

.cool-sites-card-icon {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  border-radius: 9999px;
  background: #f9fafb;
  object-fit: cover;
  transition: transform 0.2s;
}

.cool-sites-card:hover .cool-sites-card-icon {
  transform: scale(1.08);
}

.cool-sites-card-fa {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  border-radius: 0.5rem;
  background: #2563eb;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.cool-sites-card-body {
  flex: 1;
  min-width: 0;
}

.cool-sites-card-title {
  margin: 0;
  font-weight: 700;
  color: #1f2937;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.15s;
}

.cool-sites-card:hover .cool-sites-card-title {
  color: #2563eb;
}

.cool-sites-card-desc {
  margin: 0.375rem 0 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: #6b7280;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cool-sites-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 50;
}

.cool-sites-overlay.hidden {
  display: none;
}

.cool-sites-drawer {
  position: fixed;
  inset: 0 auto 0 0;
  width: 16rem;
  background: #fff;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  z-index: 60;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.3s;
}

.cool-sites-drawer.is-open {
  transform: translateX(0);
}

@media (min-width: 768px) {
  .cool-sites-drawer,
  .cool-sites-overlay {
    display: none !important;
  }
}

.cool-sites-drawer-head {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #f3f4f6;
}

.cool-sites-drawer-head h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: #1f2937;
}

.cool-sites-drawer-head button {
  color: #6b7280;
  background: none;
  border: none;
  cursor: pointer;
}