/* Datasets Page Styles */
.datasets-main {
  padding: 24px 0 48px;
}

.datasets-header {
  text-align: center;
  margin-bottom: 24px;
}

.datasets-header h1 {
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 16px 0;
  color: var(--c-text-main);
}

.datasets-header .search-wrapper {
  max-width: 560px;
  margin: 0 auto;
  position: relative;
}

.datasets-header .search-input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 16px 10px 40px;
  font-size: 14px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
  color: var(--c-text-main);
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.datasets-header .search-input:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.datasets-header .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-text-muted);
  pointer-events: none;
}

/* Category Filters */
.dataset-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

/* Datasets Grid */
.datasets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 20px;
}

.dataset-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.dataset-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.06);
}

.dataset-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.dataset-category {
  font-size: 11px;
  font-weight: 600;
  color: var(--c-primary);
  background: #eff6ff;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid #dbeafe;
}

.dataset-size {
  font-size: 11px;
  color: var(--c-text-muted);
  font-family: var(--font-code);
}

.dataset-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text-main);
  margin: 0 0 8px 0;
}

.dataset-desc {
  font-size: 13px;
  color: var(--c-text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

/* Preview Area in Card */
.dataset-preview-box {
  background: #f8fafc;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 8px 12px;
  margin-bottom: 16px;
  position: relative;
  max-height: 110px;
  overflow: hidden;
}

.dataset-preview-box pre {
  margin: 0;
  font-family: var(--font-code);
  font-size: 11px;
  line-height: 1.5;
  color: #475569;
}

.dataset-preview-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 35px;
  background: linear-gradient(to top, #f8fafc, transparent);
  pointer-events: none;
}

/* Card Actions */
.dataset-actions {
  display: flex;
  gap: 8px;
}

.dataset-actions .btn {
  flex: 1;
  padding: 7px 10px;
  font-size: 12px;
}

/* Status Tip */
#copy-notification {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #0f172a;
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  gap: 8px;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#copy-notification.show {
  transform: translateY(0);
  opacity: 1;
}