/* Material 3 Design System - Expressive Theme */

:root {
  /* Primary Colors - Material 3 Expressive */
  --md-primary: #6750A4;
  --md-primary-container: #EADDFF;
  --md-on-primary: #FFFFFF;
  --md-on-primary-container: #21005D;

  /* Secondary Colors */
  --md-secondary: #625B71;
  --md-secondary-container: #E8DEF8;
  --md-on-secondary: #FFFFFF;
  --md-on-secondary-container: #1D192B;

  /* Tertiary Colors */
  --md-tertiary: #7D5260;
  --md-tertiary-container: #FFD8E4;
  --md-on-tertiary: #FFFFFF;
  --md-on-tertiary-container: #31111D;

  /* Surface Colors */
  --md-surface: #FEF7FF;
  --md-surface-variant: #E7E0EC;
  --md-on-surface: #1C1B1F;
  --md-on-surface-variant: #49454F;

  /* Background */
  --md-background: #FEF7FF;
  --md-on-background: #1C1B1F;

  /* Outline */
  --md-outline: #79747E;
  --md-outline-variant: #CAC4D0;

  /* Error */
  --md-error: #B3261E;
  --md-error-container: #F9DEDC;
  --md-on-error: #FFFFFF;
  --md-on-error-container: #410E0B;

  /* Success */
  --md-success: #198754;
  --md-success-container: #D1F4E0;

  /* Elevation & Shadows */
  --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
  --elevation-2: 0 2px 4px rgba(0, 0, 0, 0.05), 0 4px 8px rgba(0, 0, 0, 0.1);
  --elevation-3: 0 4px 8px rgba(0, 0, 0, 0.05), 0 8px 16px rgba(0, 0, 0, 0.1);
  --elevation-4: 0 8px 16px rgba(0, 0, 0, 0.05), 0 16px 32px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background: var(--md-background);
  color: var(--md-on-background);
  line-height: 1.5;
  min-height: 100vh;
}

/* ===== LANDING PAGE ===== */

.landing-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.navbar {
  background: var(--md-surface);
  border-bottom: 1px solid var(--md-outline-variant);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(254, 247, 255, 0.9);
}

.navbar-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  transition: opacity var(--transition-fast);
}

.brand-link:hover {
  opacity: 0.8;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.brand-icon:hover {
  transform: scale(1.05);
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--md-on-surface);
}

.nav-back {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--md-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.nav-back:hover {
  background: var(--md-primary-container);
  border-color: var(--md-primary);
}

/* Hero Section */
.hero {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.hero-content {
  text-align: center;
  margin-bottom: 3rem;
  animation: fade-in-up 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--md-on-surface);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--md-on-surface-variant);
  max-width: 600px;
  margin: 0 auto;
}

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

.tool-card {
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  opacity: 0;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--md-primary-container) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--elevation-3);
  border-color: var(--md-primary);
}

.tool-card:hover::before {
  opacity: 0.5;
}

.tool-card.fade-in {
  animation: fade-in-up 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.tool-card-placeholder {
  opacity: 0.5;
  cursor: default;
  pointer-events: none;
}

.tool-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-base);
  position: relative;
  z-index: 1;
}

.tool-card:hover .tool-icon {
  transform: scale(1.1) rotate(5deg);
}

.tool-icon.education {
  background: linear-gradient(135deg, #6750A4 0%, #7E57C2 100%);
  color: white;
}

.tool-icon.placeholder {
  background: var(--md-surface-variant);
  color: var(--md-on-surface-variant);
}

.tool-content {
  flex: 1;
  position: relative;
  z-index: 1;
}

.tool-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--md-on-surface);
  margin-bottom: 0.5rem;
}

.tool-description {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.tool-meta {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tool-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
}

.tool-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-primary);
  transition: transform var(--transition-base);
  position: relative;
  z-index: 1;
}

.tool-card:hover .tool-arrow {
  transform: translateX(4px);
}

/* Footer */
.footer {
  background: var(--md-surface);
  border-top: 1px solid var(--md-outline-variant);
  margin-top: auto;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  text-align: center;
}

.footer-text {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
}

/* ===== TOOL PAGE ===== */

.tool-page {
  background: var(--md-background);
}

.page-header {
  background: linear-gradient(135deg, var(--md-primary-container) 0%, var(--md-secondary-container) 100%);
  border-bottom: 1px solid var(--md-outline-variant);
}

.page-header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  animation: fade-in-up 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.page-icon.education {
  background: linear-gradient(135deg, #6750A4 0%, #7E57C2 100%);
  color: white;
  box-shadow: var(--elevation-2);
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--md-on-surface);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.page-subtitle {
  font-size: 1rem;
  color: var(--md-on-surface-variant);
  max-width: 600px;
}

/* Tool Container */
.tool-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Filter Card */
.filter-card {
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--elevation-1);
  animation: fade-in-up 0.6s 0.1s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

.card-section {
  margin-bottom: 2rem;
}

.card-section:last-child {
  margin-bottom: 0;
}

.section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--md-on-surface);
  margin-bottom: 1rem;
}

/* School Type Toggle */
.school-type-toggle {
  display: inline-flex;
  gap: 0.5rem;
  padding: 0.25rem;
  background: var(--md-surface-variant);
  border-radius: var(--radius-full);
}

.toggle-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  background: transparent;
  color: var(--md-on-surface-variant);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.toggle-chip svg {
  transition: transform var(--transition-fast);
}

.toggle-chip.active {
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--elevation-1);
}

.toggle-chip.active svg {
  transform: rotate(45deg);
}

.toggle-chip:hover:not(.active) {
  background: rgba(103, 80, 164, 0.1);
}

/* Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

/* Input Field */
.input-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--md-on-surface);
}

.input-wrapper {
  position: relative;
}

.input-control {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  color: var(--md-on-surface);
  transition: all var(--transition-fast);
  outline: none;
}

.input-control::placeholder {
  color: var(--md-on-surface-variant);
  opacity: 0.6;
}

.input-control:hover {
  border-color: var(--md-on-surface);
}

.input-control:focus {
  border-color: var(--md-primary);
  border-width: 2px;
  padding: calc(0.875rem - 1px) calc(1rem - 1px);
  box-shadow: 0 0 0 3px rgba(103, 80, 164, 0.1);
}

.input-hint {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
}

/* Card Actions */
.card-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--md-outline-variant);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

.btn-icon {
  flex-shrink: 0;
}

.btn-primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--elevation-1);
}

.btn-primary:hover {
  background: #7E57C2;
  box-shadow: var(--elevation-2);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  background: var(--md-surface-variant);
  color: var(--md-on-surface-variant);
  cursor: not-allowed;
  box-shadow: none;
  opacity: 0.6;
}

.btn-secondary {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border: 1px solid var(--md-outline-variant);
}

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

.btn-secondary:disabled {
  background: var(--md-surface-variant);
  color: var(--md-on-surface-variant);
  cursor: not-allowed;
  opacity: 0.6;
}

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Loading Spinner (Larger) */
.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--md-outline-variant);
  border-top-color: var(--md-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Status Message */
.status-message {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  animation: slide-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin-top: 1rem;
}

.status-success {
  background: var(--md-success-container);
  color: var(--md-success);
  border-left: 4px solid var(--md-success);
}

.status-error {
  background: var(--md-error-container);
  color: var(--md-error);
  border-left: 4px solid var(--md-error);
}

/* Results Card */
.results-card {
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--elevation-1);
  animation: fade-in-up 0.6s 0.2s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.results-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--md-on-surface);
  margin-bottom: 0.25rem;
}

.results-subtitle {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
}

.results-content {
  min-height: 200px;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  text-align: center;
}

.empty-state-icon {
  color: var(--md-on-surface-variant);
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--md-on-surface);
  margin-bottom: 0.5rem;
}

.empty-state-text {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  max-width: 400px;
}

/* Table */
.table-wrapper {
  border-radius: var(--radius-md);
  border: 1px solid var(--md-outline-variant);
  overflow: hidden;
}

.table-container {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table thead {
  background: var(--md-surface-variant);
  position: sticky;
  top: 0;
  z-index: 10;
}

.data-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  white-space: nowrap;
  border-bottom: 2px solid var(--md-outline-variant);
}

.data-table td {
  padding: 1rem;
  color: var(--md-on-surface);
  border-bottom: 1px solid var(--md-outline-variant);
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
  background: var(--md-primary-container);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.table-row-fade-in {
  animation: fade-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Animations */
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slide-in {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Responsive Design */

/* Tablet */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-description {
    font-size: 1.125rem;
  }

  .page-title {
    font-size: 1.75rem;
  }

  .page-header-content {
    padding: 1.5rem;
  }

  .tool-container {
    padding: 1.5rem;
  }

  .filter-card,
  .results-card {
    padding: 1.5rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .school-type-toggle {
    width: 100%;
    display: flex;
  }

  .toggle-chip {
    flex: 1;
    justify-content: center;
  }

  .card-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Mobile */
@media (max-width: 480px) {
  .navbar-content {
    padding: 1rem;
  }

  .hero {
    padding: 2rem 1rem;
  }

  .hero-content {
    margin-bottom: 2rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .page-title {
    font-size: 1.5rem;
  }

  .page-subtitle {
    font-size: 0.875rem;
  }

  .page-header-content {
    gap: 1rem;
    padding: 1rem;
  }

  .page-icon {
    width: 48px;
    height: 48px;
  }

  .tool-container {
    padding: 1rem;
  }

  .filter-card,
  .results-card {
    padding: 1rem;
    border-radius: var(--radius-lg);
  }

  .tool-card {
    padding: 1rem;
    border-radius: var(--radius-lg);
  }

  .data-table {
    font-size: 0.75rem;
  }

  .data-table th,
  .data-table td {
    padding: 0.75rem 0.5rem;
  }

  .nav-back span {
    display: none;
  }

  .brand-name {
    font-size: 1.125rem;
  }

  .tool-arrow {
    display: none;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .page-header,
  .filter-card,
  .footer {
    display: none;
  }

  .results-card {
    border: none;
    box-shadow: none;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus visible for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}

button:focus-visible {
  outline-offset: 4px;
}

/* ===== USE CASE CARDS ===== */

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.use-case-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--md-surface);
  border: 2px solid var(--md-outline-variant);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  font-family: inherit;
}

.use-case-card:hover {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
}

.use-case-card.active {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
  box-shadow: var(--elevation-1);
}

.use-case-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--md-primary);
  color: var(--md-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.use-case-card.active .use-case-icon {
  transform: scale(1.1);
}

.use-case-content {
  flex: 1;
}

.use-case-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--md-on-surface);
  margin: 0 0 0.25rem;
}

.use-case-desc {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  margin: 0;
  line-height: 1.4;
}

/* ===== FILTER SECTION ===== */

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

.filter-badge {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
}

/* ===== RESULTS TOOLBAR ===== */

.results-toolbar {
  display: flex;
  gap: 1.5rem;
  padding: 1rem;
  background: var(--md-surface-variant);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toolbar-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  white-space: nowrap;
}

.toolbar-select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-sm);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toolbar-select:hover {
  border-color: var(--md-on-surface);
}

.toolbar-select:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px rgba(103, 80, 164, 0.1);
}

.toolbar-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-sm);
  background: var(--md-surface);
  color: var(--md-on-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toolbar-btn:hover {
  background: var(--md-primary-container);
  border-color: var(--md-primary);
}

.toolbar-btn svg {
  transition: transform var(--transition-fast);
}

.toolbar-btn[data-order="desc"] svg {
  transform: rotate(180deg);
}

.toolbar-search {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-sm);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 0.875rem;
  min-width: 200px;
  transition: all var(--transition-fast);
}

.toolbar-search::placeholder {
  color: var(--md-on-surface-variant);
  opacity: 0.6;
}

.toolbar-search:hover {
  border-color: var(--md-on-surface);
}

.toolbar-search:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px rgba(103, 80, 164, 0.1);
}

/* ===== SORTABLE TABLE HEADERS ===== */

.sortable {
  cursor: pointer;
  user-select: none;
  position: relative;
}

.sortable:hover {
  background: rgba(103, 80, 164, 0.05);
}

.sortable span {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.sort-icon {
  opacity: 0.3;
  transition: opacity var(--transition-fast);
}

.sortable:hover .sort-icon {
  opacity: 0.6;
}

.sortable.active .sort-icon {
  opacity: 1;
  color: var(--md-primary);
}

/* ===== PAGINATION ===== */

.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  gap: 1rem;
  border-top: 1px solid var(--md-outline-variant);
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-full);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  background: var(--md-primary-container);
  border-color: var(--md-primary);
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pagination-info {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  font-weight: 500;
}

/* ===== RESPONSIVE UPDATES ===== */

@media (max-width: 768px) {
  .use-case-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .results-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar-group {
    flex-wrap: wrap;
  }

  .toolbar-search {
    min-width: 100%;
  }

  .pagination {
    flex-direction: column;
    text-align: center;
  }

  .pagination-btn span {
    display: none;
  }
}

@media (max-width: 480px) {
  .use-case-grid {
    gap: 0.75rem;
  }

  .use-case-card {
    padding: 0.875rem;
    gap: 0.875rem;
  }

  .use-case-icon {
    width: 36px;
    height: 36px;
  }

  .use-case-title {
    font-size: 0.875rem;
  }

  .use-case-desc {
    font-size: 0.6875rem;
  }

  .toolbar-label {
    font-size: 0.8125rem;
  }
}

/* Statistics View */
.statistics-view {
  padding: 1.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.stat-card {
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--elevation-1);
  transition: all var(--transition-base);
}

.stat-card:hover {
  box-shadow: var(--elevation-2);
  transform: translateY(-2px);
}

.stat-card-full {
  grid-column: 1 / -1;
}

.stat-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.stat-icon {
  color: var(--md-primary);
  opacity: 0.8;
}

.stat-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--md-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-detail {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
}

.stat-table {
  margin-top: 1rem;
  overflow-x: auto;
}

.stat-table table {
  width: 100%;
  border-collapse: collapse;
}

.stat-table th {
  text-align: left;
  padding: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  border-bottom: 2px solid var(--md-outline-variant);
}

.stat-table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--md-outline-variant);
  font-size: 0.9375rem;
}

.stat-table tbody tr:hover {
  background: var(--md-surface-variant);
}

/* Compare View */
.compare-view {
  padding: 1.5rem;
}

.compare-intro {
  margin-bottom: 2rem;
  text-align: center;
}

.compare-intro h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--md-on-surface);
  margin-bottom: 0.5rem;
}

.compare-intro p {
  color: var(--md-on-surface-variant);
}

.compare-table {
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--elevation-1);
}

.compare-table table {
  width: 100%;
  border-collapse: collapse;
}

.compare-table th {
  text-align: left;
  padding: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--md-on-surface);
  background: var(--md-surface-variant);
  border-bottom: 2px solid var(--md-outline-variant);
}

.compare-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--md-outline-variant);
  font-size: 0.9375rem;
}

.compare-table tbody tr:hover {
  background: var(--md-primary-container);
}

.compare-table tbody tr:last-child td {
  border-bottom: none;
}

/* Responsive adjustments for stats and compare */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-value {
    font-size: 2rem;
  }

  .compare-table,
  .stat-table {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .compare-table table,
  .stat-table table {
    min-width: 600px;
  }
}

/* Tool Footer Attribution */
.tool-footer {
  margin-top: 2rem;
  padding: 1rem 1.5rem;
  background: var(--md-surface-variant);
  border-top: 1px solid var(--md-outline-variant);
}

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

.footer-attribution p {
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant);
  text-align: center;
  margin: 0;
  line-height: 1.5;
}

.footer-attribution a {
  color: var(--md-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-attribution a:hover {
  color: var(--md-on-surface);
  text-decoration: underline;
}

@media (max-width: 480px) {
  .footer-attribution p {
    font-size: 0.75rem;
  }
}