.search-results-section {
  margin-bottom: 32px;
  animation: fadeIn 0.15s var(--md-sys-motion-easing-standard);
}

.search-results-section .card {
  background-color: var(--md-sys-color-surface-container-low);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-large);
  box-shadow: var(--md-sys-elevation-1);
}

.search-results-section .card-body {
  padding: 24px;
}

.search-results-section h2 {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin: 0 0 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

#clearSearch {
  font-size: 0.875rem;
  padding: 8px 16px;
  background-color: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-medium);
  transition: all 0.2s var(--md-sys-motion-easing-standard);
}

#clearSearch:hover {
  background-color: var(--md-sys-color-surface-container);
  box-shadow: var(--md-sys-elevation-1);
}

#searchResultsGrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  padding: 8px 0;
}

.keyword-card-item-flat {
  width: 100%;
}

.keyword-card-link-flat {
  display: block;
  text-decoration: none;
  color: inherit;
  background-color: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  padding: 16px;
  transition: all 0.2s var(--md-sys-motion-easing-standard);
  position: relative;
  overflow: hidden;
  height: 100%;
}

.keyword-card-link-flat::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--md-sys-color-on-surface);
  opacity: 0;
  transition: opacity 0.2s var(--md-sys-motion-easing-standard);
  z-index: 1;
}

.keyword-card-link-flat:hover::before {
  opacity: 0.08;
}

.keyword-card-link-flat:focus-visible::before {
  opacity: 0.12;
}

.keyword-card-link-flat:active::before {
  opacity: 0.12;
}

.keyword-card-link-flat::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background-color: var(--md-sys-color-on-surface);
  width: 100px;
  height: 100px;
  margin-top: -50px;
  margin-left: -50px;
  top: var(--ripple-y, 50%);
  left: var(--ripple-x, 50%);
  opacity: 0;
  pointer-events: none;
  z-index: 2;
}

.keyword-card-link-flat.ripple-active::after {
  animation: ripple 0.5s var(--md-sys-motion-easing-emphasized-decelerate);
}

.keyword-card-content-flat {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.keyword-card-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border-radius: var(--md-sys-shape-corner-small);
  font-size: 0.75rem;
  font-weight: 500;
  align-self: flex-start;
}

.keyword-card-category-badge i {
  font-size: 0.875rem;
}

.keyword-card-title-flat {
  font-size: 1rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.keyword-alias-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background-color: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
  border: 1px dashed var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-small);
  font-size: 0.75rem;
  font-weight: 400;
}

.keyword-alias-badge i {
  font-size: 0.875rem;
}

.empty-state-search {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  color: var(--md-sys-color-on-surface-variant);
  text-align: center;
}

.empty-state-search i {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.6;
}

.empty-state-search p {
  font-size: 1rem;
  margin: 0;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.keyword-category-section {
  margin-bottom: 56px;
  padding: 32px;
  background: var(--md-sys-color-surface-1);
  border-radius: var(--md-sys-shape-corner-extra-large);
  border: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: var(--md-sys-elevation-1);
  opacity: 0;
  animation: sectionFadeIn 0.2s ease-out forwards;
  transition: box-shadow var(--md-sys-motion-duration-medium-2) var(--md-sys-motion-easing-standard);
}

.keyword-category-section:hover {
  box-shadow: var(--md-sys-elevation-2);
}

.keyword-category-section:nth-child(1) { animation-delay: 0s; }
.keyword-category-section:nth-child(2) { animation-delay: 0.03s; }
.keyword-category-section:nth-child(3) { animation-delay: 0.06s; }
.keyword-category-section:nth-child(4) { animation-delay: 0.09s; }

.category-section-header {
  padding: 0 0 24px 0;
  margin-bottom: 28px;
  position: relative;
  border-bottom: 2px solid var(--md-sys-color-outline-variant);
}

.category-section-header::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 80px;
  height: 2px;
  background: var(--md-sys-color-primary);
  transition: width var(--md-sys-motion-duration-medium-2) var(--md-sys-motion-easing-emphasized);
}

.keyword-category-section:hover .category-section-header::after {
  width: 120px;
}

.category-section-title {
  font: var(--md-sys-typescale-headline-large-font);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 8px 0;
  letter-spacing: 0;
  line-height: 1.25;
  font-weight: 600;
  transition: color var(--md-sys-motion-duration-short-4) var(--md-sys-motion-easing-standard);
}

.category-section-description {
  font: var(--md-sys-typescale-body-large-font);
  color: var(--md-sys-color-on-surface-variant);
  margin: 0;
  line-height: 1.5;
}

.category-count {
  display: inline-flex;
  align-items: center;
  font: var(--md-sys-typescale-label-large-font);
  color: var(--md-sys-color-on-surface-variant);
  padding: 6px 16px;
  height: 32px;
  background: var(--md-sys-color-surface-variant);
  border-radius: var(--md-sys-shape-corner-small);
  border: 1px solid var(--md-sys-color-outline);
  transition: all var(--md-sys-motion-duration-short-4) var(--md-sys-motion-easing-standard);
}

.category-count i {
  font-size: 18px;
  opacity: 0.9;
}

.btn-view-all {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 10px 24px;
  font: var(--md-sys-typescale-label-large-font);
  font-weight: 500;
  color: var(--md-sys-color-primary);
  text-decoration: none;
  background: transparent;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-full);
  transition: all var(--md-sys-motion-duration-short-4) var(--md-sys-motion-easing-standard);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.btn-view-all::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--md-sys-color-primary);
  opacity: 0;
  transition: opacity var(--md-sys-motion-duration-short-4) var(--md-sys-motion-easing-standard);
  z-index: 1;
}

.btn-view-all::after {
  content: '';
  position: absolute;
  left: var(--ripple-x, 50%);
  top: var(--ripple-y, 50%);
  border-radius: 50%;
  background: var(--md-sys-color-primary);
  width: 0;
  height: 0;
  opacity: 0.35;
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
  z-index: 2;
}

.btn-view-all.ripple-active::after {
  animation: ripple 0.5s var(--md-sys-motion-easing-emphasized-decelerate);
}

.btn-view-all:hover::before {
  opacity: 0.08;
}

.btn-view-all:focus::before {
  opacity: 0.12;
}

.btn-view-all:active::before {
  opacity: 0.12;
}

.btn-view-all:hover {
  border-color: var(--md-sys-color-primary);
  box-shadow: var(--md-sys-elevation-1);
}

.btn-view-all i {
  font-size: 18px;
  position: relative;
  z-index: 3;
  transition: transform var(--md-sys-motion-duration-short-3) var(--md-sys-motion-easing-emphasized);
}

.btn-view-all:hover i {
  transform: translateX(4px);
}

.btn-view-all span {
  position: relative;
  z-index: 3;
}

.keyword-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.keyword-card-item {
  position: relative;
  opacity: 0;
  animation: cardFadeIn 0.2s ease-out forwards;
}

.keyword-card-item:nth-child(1) { animation-delay: 0s; }
.keyword-card-item:nth-child(2) { animation-delay: 0.02s; }
.keyword-card-item:nth-child(3) { animation-delay: 0.04s; }
.keyword-card-item:nth-child(4) { animation-delay: 0.06s; }
.keyword-card-item:nth-child(5) { animation-delay: 0.08s; }
.keyword-card-item:nth-child(6) { animation-delay: 0.1s; }
.keyword-card-item:nth-child(7) { animation-delay: 0.12s; }
.keyword-card-item:nth-child(8) { animation-delay: 0.14s; }

.keyword-card-link {
  display: block;
  text-decoration: none;
  height: 100%;
  min-height: 120px;
  border-radius: var(--md-sys-shape-corner-medium);
  background: var(--md-sys-color-surface-1);
  box-shadow: var(--md-sys-elevation-1);
  transition: box-shadow var(--md-sys-motion-duration-medium-2) var(--md-sys-motion-easing-standard),
              transform var(--md-sys-motion-duration-medium-2) var(--md-sys-motion-easing-emphasized);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.keyword-card-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--md-sys-color-primary);
  opacity: 0;
  border-radius: var(--md-sys-shape-corner-medium);
  transition: opacity var(--md-sys-motion-duration-short-4) var(--md-sys-motion-easing-standard);
  pointer-events: none;
  z-index: 1;
}

.keyword-card-link::after {
  content: '';
  position: absolute;
  left: var(--ripple-x, 50%);
  top: var(--ripple-y, 50%);
  border-radius: 50%;
  background: var(--md-sys-color-primary);
  width: 0;
  height: 0;
  opacity: 0.35;
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
  z-index: 2;
}

.keyword-card-link.ripple-active::after {
  animation: ripple 0.5s var(--md-sys-motion-easing-emphasized-decelerate);
}

@keyframes ripple {
  0% {
    width: 0;
    height: 0;
    opacity: 0.35;
    transform: translate(-50%, -50%) scale(0);
  }
  100% {
    width: 300px;
    height: 300px;
    opacity: 0;
    transform: translate(-50%, -50%) scale(1);
  }
}

.keyword-card-link:hover {
  box-shadow: var(--md-sys-elevation-2);
}

.keyword-card-link:hover::before {
  opacity: 0.08;
}

.keyword-card-link:focus::before {
  opacity: 0.12;
}

.keyword-card-link:active::before {
  opacity: 0.12;
}

.keyword-card-content {
  padding: 24px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 120px;
  position: relative;
  z-index: 3;
}

.keyword-card-title {
  font: var(--md-sys-typescale-title-large-font);
  color: var(--md-sys-color-on-surface);
  margin: 0;
  line-height: 1.4;
  word-wrap: break-word;
  word-break: break-word;
  hyphens: auto;
  transition: color var(--md-sys-motion-duration-short-4) var(--md-sys-motion-easing-standard);
}

.keyword-card-link:hover .keyword-card-title {
  color: var(--md-sys-color-primary);
}

.keyword-card-alias .keyword-card-link {
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: none;
}

.keyword-card-alias .keyword-card-link:hover {
  border-color: var(--md-sys-color-outline);
  box-shadow: var(--md-sys-elevation-1);
}

.keyword-card-alias .keyword-card-title {
  font: var(--md-sys-typescale-title-medium-font);
  color: var(--md-sys-color-on-surface-variant);
}

.keyword-card-alias .keyword-card-link:hover .keyword-card-title {
  color: var(--md-sys-color-primary);
}

.empty-state,
.empty-state-main {
  text-align: center;
  padding: 48px 24px;
  background: var(--md-sys-color-surface-variant);
  border-radius: var(--md-sys-shape-corner-large);
  margin: 32px 0;
}

.empty-state i,
.empty-state-main i {
  font-size: 48px;
  color: var(--md-sys-color-on-surface-variant);
  opacity: 0.38;
  display: block;
  margin-bottom: 16px;
}

.empty-state p,
.empty-state-main p {
  font: var(--md-sys-typescale-body-large-font);
  color: var(--md-sys-color-on-surface-variant);
  margin: 0;
}

@keyframes sectionFadeIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cardFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .keyword-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  
  .keyword-category-section {
    padding: 16px;
    margin-bottom: 32px;
    border-radius: var(--md-sys-shape-corner-medium);
  }
  
  .category-section-header {
    padding-bottom: 14px;
    margin-bottom: 18px;
  }
  
  .category-section-title {
    font-size: 22px;
    margin-bottom: 6px;
  }
  
  .category-section-description {
    font: var(--md-sys-typescale-body-medium-font);
  }
  
  .keyword-card-link {
    min-height: 100px;
    border-radius: var(--md-sys-shape-corner-small);
  }
  
  .keyword-card-link::before {
    border-radius: var(--md-sys-shape-corner-small);
  }
  
  .keyword-card-content {
    padding: 16px 12px;
    min-height: 100px;
  }
  
  .keyword-card-title {
    font-size: 15px;
    line-height: 1.35;
  }
  
  .keyword-card-alias .keyword-card-title {
    font-size: 14px;
  }
  
  .btn-view-all {
    width: 100%;
    justify-content: center;
    min-height: 36px;
    padding: 8px 20px;
    font-size: 14px;
  }
  
  .category-count {
    padding: 6px 12px;
    height: 28px;
    font-size: 12px;
  }
  
  .category-count i {
    font-size: 16px;
  }
  
  
  #showAliasesToggle {
    width: 40px;
    height: 24px;
    border-radius: 12px;
  }
  
  #showAliasesToggle::before {
    width: 16px;
    height: 16px;
    left: 2px;
  }
  
  #showAliasesToggle:checked::before {
    left: 20px;
  }
  
  .form-check {
    gap: 6px;
  }
  
  .form-check-label[for="showAliasesToggle"] {
    font-size: 0.8125rem;
  }
  
  .form-check-label[for="showAliasesToggle"] i {
    font-size: 0.9375rem;
  }
}

@media (hover: none) and (pointer: coarse) {
  .keyword-category-section:hover {
    box-shadow: var(--md-sys-elevation-1);
  }
  
  .keyword-card-link:hover {
    box-shadow: var(--md-sys-elevation-1);
  }
  
  .keyword-card-link:hover::before {
    opacity: 0;
  }
  
  .keyword-card-link:hover .keyword-card-title {
    color: var(--md-sys-color-on-surface);
  }
  
  .keyword-card-link:active::before {
    opacity: 0.12;
  }
  
  .btn-view-all:hover {
    box-shadow: none;
  }
  
  .btn-view-all:hover::before {
    opacity: 0;
  }
  
  .btn-view-all:active::before {
    opacity: 0.12;
  }
}

@media print {
  .keyword-card-link {
    border: 1px solid var(--md-sys-color-outline-variant);
    box-shadow: none;
    page-break-inside: avoid;
  }
  
  .keyword-card-link::before {
    display: none;
  }
  
  .btn-view-all,
  .category-count {
    display: none;
  }
  
  .keyword-category-section {
    page-break-inside: avoid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .keyword-category-section,
  .keyword-card-item {
    animation: none;
    opacity: 1;
  }
  
  .keyword-card-link:hover {
    transform: none;
  }
}

#showAliasesToggle {
  width: 48px;
  height: 28px;
  cursor: pointer;
  background-color: var(--md-sys-color-surface-variant);
  border: 2px solid var(--md-sys-color-outline);
  border-radius: 14px;
  position: relative;
  transition: all 0.2s var(--md-sys-motion-easing-standard);
}

#showAliasesToggle:checked {
  background-color: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
}

#showAliasesToggle::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--md-sys-color-outline);
  top: 50%;
  left: 2px;
  transform: translateY(-50%);
  transition: all 0.2s var(--md-sys-motion-easing-emphasized);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

#showAliasesToggle:checked::before {
  background-color: var(--md-sys-color-on-primary);
  left: 24px;
}

#showAliasesToggle:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(103, 80, 164, 0.2);
}

#showAliasesToggle:hover {
  border-color: var(--md-sys-color-on-surface);
}

#showAliasesToggle:checked:hover {
  background-color: var(--md-sys-color-primary-container);
  border-color: var(--md-sys-color-primary);
}

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  margin: 0;
  min-height: auto;
}

.form-check-label[for="showAliasesToggle"] {
  cursor: pointer;
  user-select: none;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s var(--md-sys-motion-easing-standard);
  margin: 0;
  line-height: 1;
}

.form-check-label[for="showAliasesToggle"]:hover {
  color: var(--md-sys-color-on-surface);
}

.form-check-label[for="showAliasesToggle"] i {
  font-size: 1rem;
}

.keyword-card-alias {
  position: relative;
}

.keyword-card-alias .keyword-card-link::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  width: 8px;
  height: 8px;
  background-color: var(--md-sys-color-tertiary);
  border-radius: 50%;
  opacity: 0.7;
  z-index: 4;
}