/**
 * EasyLookup Design System - Components
 * Tool cards, category cards, buttons, search bar, modals, tabs, and empty states
 */

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.625rem 1.125rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-xs);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: var(--shadow-sm);
}

.btn-primary:active {
  background-color: var(--color-primary-active);
}

.btn-secondary {
  background-color: var(--bg-muted);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.btn-secondary:hover {
  background-color: var(--border-subtle);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background-color: var(--bg-muted);
  color: var(--text-primary);
}

.btn-icon {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-card);
}

.btn-icon:hover {
  color: var(--color-primary);
  border-color: var(--color-primary-border);
  background-color: var(--color-primary-light);
}

/* ==========================================================================
   Tool Cards
   ========================================================================== */
.tool-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-border);
  background-color: var(--bg-card-hover);
}

.tool-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.tool-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-icon-wrapper {
  transform: scale(1.05);
}

.tool-actions {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.btn-favorite {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-disabled);
  background: transparent;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.btn-favorite:hover {
  color: #eab308;
  transform: scale(1.15);
}

.btn-favorite.active {
  color: #eab308;
}

.tool-card-body {
  flex-grow: 1;
}

.tool-category-kicker {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: 0.375rem;
}

.tool-title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
  line-height: 1.3;
}

.tool-desc {
  font-size: 0.84375rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.875rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
}

.tool-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

.tool-status-badge.status-ready {
  color: var(--color-success);
}

.tool-link-action {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: gap var(--transition-fast);
}

.tool-card:hover .tool-link-action {
  gap: 0.45rem;
}

/* ==========================================================================
   Category Cards
   ========================================================================== */
.category-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-fast);
}

.category-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-md);
  background-color: var(--bg-card-hover);
}

.category-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.category-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-tool-count {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--bg-muted);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-variant-numeric: tabular-nums;
}

.category-name {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
}

.category-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.category-link-text {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* ==========================================================================
   Search Input & Search Bar
   ========================================================================== */
.search-box {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  background-color: var(--bg-input);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-light), var(--shadow-md);
}

.search-box-icon {
  position: absolute;
  left: 1.25rem;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  height: 56px;
  padding: 0 6.5rem 0 3.25rem;
  background: transparent;
  border: none;
  font-size: 1rem;
  color: var(--text-primary);
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-box-end {
  position: absolute;
  right: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.search-clear-btn {
  display: none;
  color: var(--text-muted);
  padding: 0.25rem;
  border-radius: var(--radius-full);
}

.search-clear-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-muted);
}

.search-shortcut-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--bg-muted);
  border: 1px solid var(--border-subtle);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  user-select: none;
}

/* ==========================================================================
   Filter Tabs / Segmented Controls
   ========================================================================== */
.filter-tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.25rem 0;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.filter-tabs::-webkit-scrollbar {
  display: none;
}

.filter-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  border-color: var(--border-medium);
  color: var(--text-primary);
  background-color: var(--bg-muted);
}

.filter-tab.active {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  font-weight: 600;
  box-shadow: var(--shadow-xs);
}

.filter-tab .badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-full);
  background-color: rgba(0, 0, 0, 0.08);
  font-variant-numeric: tabular-nums;
}

.filter-tab.active .badge {
  background-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

/* ==========================================================================
   Feature & Value Cards
   ========================================================================== */
.feature-card {
  padding: 1.75rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.feature-card:hover {
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   Empty States
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  background-color: var(--bg-card);
  border: 1px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  max-width: 520px;
  margin: 0 auto;
}

.empty-state-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
}

.empty-state-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

/* ==========================================================================
   Search Modal Dialog
   ========================================================================== */
.search-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 4rem 1rem 2rem;
  animation: fadeIn 150ms ease;
}

.search-modal-backdrop.open {
  display: flex;
}

.search-modal {
  width: 100%;
  max-width: 640px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: slideDown 150ms cubic-bezier(0.16, 1, 0.3, 1);
}

.search-modal-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  gap: 0.75rem;
}

.search-modal-input {
  width: 100%;
  border: none;
  outline: none;
  background: transparent;
  font-size: 1.0625rem;
  color: var(--text-primary);
}

.search-modal-input::placeholder {
  color: var(--text-muted);
}

.search-modal-results {
  max-height: 380px;
  overflow-y: auto;
  padding: 0.5rem;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: background-color var(--transition-fast);
  cursor: pointer;
}

.search-result-item:hover,
.search-result-item.selected {
  background-color: var(--bg-muted);
}

.search-result-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.search-result-info {
  flex-grow: 1;
  min-width: 0;
}

.search-result-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-xs);
  flex-shrink: 0;
}

.search-modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.search-modal-hints {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.search-modal-hints kbd {
  font-family: var(--font-mono);
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-xs);
  font-size: 0.6875rem;
}

/* ==========================================================================
   Tool Workspace Layout & Controls
   ========================================================================== */
.tool-workspace {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 3rem;
}

.tool-privacy-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-success);
  background-color: var(--color-success-light);
  border: 1px solid rgba(22, 163, 74, 0.25);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.tool-stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.tool-stat-box {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
}

.tool-stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.tool-stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.tool-textarea-wrapper {
  position: relative;
  margin-bottom: 1rem;
}

.tool-textarea {
  width: 100%;
  min-height: 220px;
  background-color: var(--bg-input);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-primary);
  font-family: var(--font-sans);
  resize: vertical;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tool-textarea.code-mode {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  tab-size: 2;
  white-space: pre;
}

.tool-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.tool-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.tool-options-panel {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

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

.option-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

.option-checkbox-label input[type="checkbox"],
.option-checkbox-label input[type="radio"] {
  accent-color: var(--color-primary);
  width: 16px;
  height: 16px;
}

.tool-preview-box {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1rem;
  overflow-x: auto;
  min-height: 120px;
}

/* Diff Viewer */
.diff-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (max-width: 768px) {
  .diff-container {
    grid-template-columns: 1fr;
  }
}

.diff-box {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  background-color: var(--bg-card);
  font-family: var(--font-mono);
  font-size: 0.84375rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 200px;
}

.diff-del {
  background-color: #fee2e2;
  color: #991b1b;
  text-decoration: line-through;
  padding: 0 0.2rem;
  border-radius: 2px;
}

[data-theme="dark"] .diff-del {
  background-color: rgba(220, 38, 38, 0.25);
  color: #f87171;
}

.diff-ins {
  background-color: #dcfce7;
  color: #166534;
  padding: 0 0.2rem;
  border-radius: 2px;
}

[data-theme="dark"] .diff-ins {
  background-color: rgba(22, 163, 74, 0.25);
  color: #4ade80;
}

/* Informational FAQ & Guides */
.guide-section {
  padding: 3rem 0;
  border-top: 1px solid var(--border-subtle);
}

.guide-step {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.guide-step-number {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9375rem;
  flex-shrink: 0;
}

.guide-step-content h4 {
  font-size: 1.0625rem;
  margin-bottom: 0.25rem;
}

.guide-step-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Spreadsheet Table & Data Grid Styling
   ========================================================================== */
.spreadsheet-container {
  width: 100%;
  overflow-x: auto;
  max-height: 480px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background-color: var(--bg-card);
  box-shadow: var(--shadow-xs);
  margin-top: 1rem;
}

.spreadsheet-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84375rem;
  font-family: var(--font-sans);
  text-align: left;
}

.spreadsheet-table th {
  position: sticky;
  top: 0;
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  font-weight: 700;
  padding: 0.625rem 0.875rem;
  border-bottom: 2px solid var(--border-medium);
  border-right: 1px solid var(--border-subtle);
  white-space: nowrap;
  user-select: none;
  z-index: 10;
}

.spreadsheet-table td {
  padding: 0.5rem 0.875rem;
  border-bottom: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  white-space: nowrap;
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.spreadsheet-table tr:hover td {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.spreadsheet-table .row-num-cell {
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-align: center;
  width: 48px;
  min-width: 48px;
  user-select: none;
  font-variant-numeric: tabular-nums;
}

.sheet-tabs-bar {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.75rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-bottom: none;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow-x: auto;
}

.sheet-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.sheet-tab-btn:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.sheet-tab-btn.active {
  background-color: var(--bg-card);
  color: var(--color-primary);
  font-weight: 600;
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-xs);
}

.dropzone {
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background-color: var(--bg-subtle);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.dropzone-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.dropzone-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
}

.dropzone-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}