/* ================================
   UA Vehicle Registry Dataset Page
   ================================ */

/* Breadcrumbs */
.breadcrumbs {
  padding: var(--space-lg) var(--space-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.breadcrumbs-list {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  list-style: none;
  font-size: 0.875rem;
  padding: 0;
  margin: 0;
}

.breadcrumbs-list a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

.breadcrumbs-list a:hover {
  text-decoration: underline;
}

.breadcrumbs-separator {
  color: var(--md-sys-color-outline);
}

.breadcrumbs-current {
  color: var(--md-sys-color-on-surface-variant);
}

/* Badges */
.ds-badge-row {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.ds-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-free {
  background: color-mix(in srgb, var(--md-sys-color-tertiary) 15%, transparent);
  color: var(--md-sys-color-tertiary);
}

.badge-license {
  background: color-mix(in srgb, var(--md-sys-color-primary) 15%, transparent);
  color: var(--md-sys-color-primary);
}

.badge-format {
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
}

/* Stats */
.ds-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  justify-content: center;
  padding: var(--space-xl) 0;
  margin-bottom: var(--space-lg);
}

.ds-stats .stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 120px;
}

.ds-stats .stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--md-sys-color-primary);
}

.ds-stats .stat-label {
  font-size: 0.8125rem;
  color: var(--md-sys-color-on-surface-variant);
}

/* Actions */
.ds-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-sm);
}

/* Author external identifiers (subtle) */
.ds-author-ids {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xxl);
  font-size: 0.6875rem;
}

.ds-author-ids a {
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  opacity: 0.4;
  transition: opacity var(--md-sys-motion-duration-short);
}

.ds-author-ids a:hover {
  opacity: 0.8;
}

.ds-author-ids span {
  color: var(--md-sys-color-outline);
  opacity: 0.3;
}

/* Description */
.ds-description {
  max-width: 800px;
}

.ds-description p {
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.ds-description a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

.ds-description a:hover {
  text-decoration: underline;
}

/* Source Box */
.ds-source-box {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.ds-source-box h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.ds-source-box p {
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: var(--space-md);
}

.ds-source-links {
  display: flex;
  gap: var(--space-sm);
}

/* Quality Grid */
.ds-quality-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.ds-quality-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--md-sys-color-surface-container);
  border-radius: var(--radius-lg);
  border: 1px solid var(--md-sys-color-outline-variant);
}

.ds-quality-item > .material-symbols-rounded {
  color: var(--md-sys-color-primary);
  font-size: 28px;
  flex-shrink: 0;
}

.ds-quality-item h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.ds-quality-item p {
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.5;
  margin: 0;
}

/* Schema Table */
.ds-schema-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
}

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

.ds-schema-table thead {
  background: var(--md-sys-color-surface-container-high);
}

.ds-schema-table th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-weight: 700;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--md-sys-color-on-surface-variant);
  white-space: nowrap;
}

.ds-schema-table td {
  padding: var(--space-sm) var(--space-md);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  vertical-align: top;
}

.ds-schema-table tbody tr:hover {
  background: color-mix(in srgb, var(--md-sys-color-primary) 5%, transparent);
}

.ds-schema-table code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8125rem;
  color: var(--md-sys-color-primary);
  background: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
}

.schema-type {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
  letter-spacing: 0.02em;
}

.ds-schema-note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--md-sys-color-primary);
}

.ds-schema-note > .material-symbols-rounded {
  color: var(--md-sys-color-primary);
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.ds-schema-note p {
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.5;
  margin: 0;
}

.ds-schema-note a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

.ds-schema-note a:hover {
  text-decoration: underline;
}

/* Issues List */
.ds-issues-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.ds-issue {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--md-sys-color-surface-container);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
}

.ds-issue-status {
  flex-shrink: 0;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
}

.ds-issue-fixed {
  background: color-mix(in srgb, var(--md-sys-color-tertiary) 15%, transparent);
  color: var(--md-sys-color-tertiary);
}

.ds-issue-partial {
  background: color-mix(in srgb, #f59e0b 15%, transparent);
  color: #d97706;
}

/* Links Grid */
.ds-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.ds-link-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all var(--md-sys-motion-duration-medium);
}

.ds-link-card:hover {
  border-color: var(--md-sys-color-primary);
  transform: translateY(-2px);
}

.ds-link-card > .material-symbols-rounded {
  color: var(--md-sys-color-primary);
  font-size: 28px;
  flex-shrink: 0;
  margin-top: 2px;
}

.ds-link-card h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.ds-link-card p {
  font-size: 0.8125rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.4;
  margin: 0;
}

/* Author Card */
.ds-author-card {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: var(--md-sys-color-surface-container);
  border-radius: var(--radius-lg);
  border: 1px solid var(--md-sys-color-outline-variant);
  flex-wrap: wrap;
}

.author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.ds-author-info h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.ds-author-info p {
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.9375rem;
  margin: 0;
}

.ds-author-links {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.author-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--md-sys-color-primary);
  background: color-mix(in srgb, var(--md-sys-color-primary) 10%, transparent);
  text-decoration: none;
  transition: background var(--md-sys-motion-duration-short);
}

.author-link:hover {
  background: color-mix(in srgb, var(--md-sys-color-primary) 20%, transparent);
}

.author-link .material-symbols-rounded {
  font-size: 16px;
}

/* Citation */
.ds-cite-box {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
}

.ds-cite-box code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface);
  line-height: 1.6;
  word-break: break-word;
}

.ds-cite-note {
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.5;
}

.ds-cite-note a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

/* ================================
   Subsection Title
   ================================ */
.subsection-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--md-sys-color-on-surface);
}

.section-note {
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  background: var(--md-sys-color-surface-variant);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--md-sys-color-outline);
}

/* ================================
   Request Packages
   ================================ */
.request-packages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.package-card {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--md-sys-motion-duration-medium);
  position: relative;
}

.package-card:hover {
  border-color: var(--md-sys-color-primary);
  transform: translateY(-2px);
}

.package-free { border-style: dashed; }

.package-popular {
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 1px var(--md-sys-color-primary);
}

.package-popular-tag {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  padding: 2px 12px;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.package-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.package-name {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--md-sys-color-primary);
}

.package-price {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--md-sys-color-on-surface);
}

.package-requests {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.package-fields {
  display: block;
  font-size: 0.8125rem;
  color: var(--md-sys-color-on-surface-variant);
}

.package-savings {
  display: block;
  font-size: 0.75rem;
  color: var(--md-sys-color-tertiary);
  font-weight: 600;
  margin-top: var(--space-xs);
}

/* ================================
   Extra API Grid
   ================================ */
.extra-api-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.extra-api-card {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  transition: all var(--md-sys-motion-duration-medium);
}

.extra-api-card:hover {
  border-color: var(--md-sys-color-primary);
  transform: translateY(-2px);
}

.extra-api-icon .material-symbols-rounded {
  font-size: 28px;
  color: var(--md-sys-color-primary);
}

.extra-api-name { font-size: 1rem; font-weight: 700; margin: 0; }
.extra-api-desc { font-size: 0.875rem; color: var(--md-sys-color-on-surface-variant); line-height: 1.5; margin: 0; }

.extra-api-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-top: var(--space-sm);
}

.extra-api-price-value { font-size: 1.25rem; font-weight: 800; color: var(--md-sys-color-primary); }
.extra-api-price-unit { font-size: 0.8125rem; color: var(--md-sys-color-on-surface-variant); }
.extra-api-min { font-size: 0.75rem; color: var(--md-sys-color-on-surface-variant); }

/* ================================
   Pricing Grid
   ================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.pricing-card {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all var(--md-sys-motion-duration-medium);
}

.pricing-card:hover { border-color: var(--md-sys-color-primary); transform: translateY(-4px); }

.pricing-card-popular {
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 1px var(--md-sys-color-primary);
}

.pricing-popular-tag {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  text-align: center;
  padding: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.pricing-header { padding: var(--space-md) var(--space-xl) var(--space-sm); text-align: center; }
.pricing-icon { font-size: 28px; color: var(--md-sys-color-primary); }
.pricing-name { font-size: 1.125rem; font-weight: 700; margin: var(--space-xs) 0; }
.pricing-desc { font-size: 0.8125rem; color: var(--md-sys-color-on-surface-variant); }
.pricing-body { padding: 0 var(--space-lg); flex: 1; }

.pricing-tiers { display: flex; flex-direction: row; gap: var(--space-sm); margin: var(--space-sm) 0; }
.pricing-tier { flex: 1; padding: var(--space-sm) var(--space-md); background: var(--md-sys-color-surface-container-high); border-radius: var(--radius-md); text-align: center; }
.tier-name { display: block; font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--md-sys-color-primary); margin-bottom: 2px; }

.pricing-price { text-align: center; margin: var(--space-xs) 0; }
.price-value { font-size: 1.5rem; font-weight: 800; color: var(--md-sys-color-on-surface); }
.price-unit { font-size: 0.8125rem; color: var(--md-sys-color-on-surface-variant); }

.pricing-billed { display: block; font-size: 0.6875rem; color: var(--md-sys-color-on-surface-variant); margin-top: 2px; }
.tier-fields { display: block; font-size: 0.75rem; color: var(--md-sys-color-on-surface-variant); margin-top: 2px; }
.tier-savings { display: inline-block; margin-top: 2px; padding: 1px 8px; background: #4caf5020; color: #4caf50; border-radius: var(--radius-full); font-size: 0.6875rem; font-weight: 600; }

.pricing-features { list-style: none; padding: 0; margin: var(--space-sm) 0; display: flex; flex-wrap: wrap; gap: var(--space-xs); }
.pricing-features li { display: inline-flex; align-items: center; gap: 4px; padding: 4px 12px; font-size: 0.8125rem; color: var(--md-sys-color-on-surface-variant); background: var(--md-sys-color-surface-container-high); border-radius: var(--radius-full); white-space: nowrap; }
.pricing-features li .material-symbols-rounded { color: #4caf50; font-size: 16px; flex-shrink: 0; }

.pricing-footer { padding: var(--space-sm) var(--space-lg) var(--space-lg); }
.btn-pricing { width: 100%; justify-content: center; }

.pricing-warning {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: color-mix(in srgb, var(--md-sys-color-error) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--md-sys-color-error) 30%, transparent);
  border-radius: var(--radius-md);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.pricing-warning .material-symbols-rounded { color: var(--md-sys-color-error); font-size: 1.5rem; flex-shrink: 0; margin-top: 2px; }
.pricing-warning p { font-size: 0.875rem; color: var(--md-sys-color-on-surface); line-height: 1.5; margin: 0; }

.pricing-note { text-align: center; font-size: 0.875rem; color: var(--md-sys-color-on-surface-variant); margin-top: var(--space-xl); }
.pricing-note a { color: var(--md-sys-color-primary); text-decoration: none; }
.pricing-note a:hover { text-decoration: underline; }

/* ================================
   MCP Addon Box
   ================================ */
.addon-box {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  padding: var(--space-xl);
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  margin-top: var(--space-xl);
}

.addon-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-sys-color-primary-container);
  border-radius: var(--radius-md);
}

.addon-icon .material-symbols-rounded { font-size: 24px; color: var(--md-sys-color-on-primary-container); }
.addon-title { font-size: 1.0625rem; font-weight: 600; margin-bottom: var(--space-xs); }
.addon-desc { font-size: 0.9375rem; color: var(--md-sys-color-on-surface-variant); line-height: 1.6; margin-bottom: var(--space-md); }

/* ================================
   Fields Tiers
   ================================ */
.fields-tier-free-wide {
  background: var(--md-sys-color-surface-container);
  border: 1px dashed var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.fields-tier-free-header { display: flex; align-items: flex-start; gap: var(--space-lg); margin-bottom: var(--space-lg); }
.fields-tier-free-desc { font-size: 0.9375rem; color: var(--md-sys-color-on-surface-variant); line-height: 1.6; margin-top: var(--space-sm); margin-bottom: 0; }
.fields-list-wide { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0 var(--space-xl); }

.fields-tiers-paid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.fields-tier-card {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.fields-tier-basic { border-color: var(--md-sys-color-outline); }
.fields-tier-standard { border-color: var(--md-sys-color-primary); }
.fields-tier-pro {
  border-color: var(--md-sys-color-primary);
  background: linear-gradient(180deg, var(--md-sys-color-surface-container) 0%, color-mix(in srgb, var(--md-sys-color-primary) 5%, var(--md-sys-color-surface-container)) 100%);
}

.fields-tier-title { display: flex; align-items: center; gap: var(--space-xs); font-size: 1rem; font-weight: 600; margin-bottom: var(--space-sm); }
.fields-tier-title .material-symbols-rounded { color: var(--md-sys-color-primary); font-size: 20px; }
.fields-tier-count { display: inline-block; font-size: 1.25rem; font-weight: 800; color: var(--md-sys-color-primary); margin-bottom: var(--space-md); }
.fields-tier-plus { font-size: 0.8125rem; font-weight: 600; color: var(--md-sys-color-on-surface-variant); margin-bottom: var(--space-sm); }

.fields-list { list-style: none; padding: 0; margin: 0; }
.fields-list li { padding: var(--space-xs) 0; font-size: 0.875rem; color: var(--md-sys-color-on-surface-variant); border-bottom: 1px solid var(--md-sys-color-outline-variant); }
.fields-list li:last-child { border-bottom: none; }

/* ================================
   Responsive
   ================================ */
@media (max-width: 768px) {
  .ds-quality-grid {
    grid-template-columns: 1fr;
  }

  .ds-links-grid {
    grid-template-columns: 1fr;
  }

  .ds-author-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .ds-stats {
    gap: var(--space-md);
  }

  .ds-stats .stat-item {
    min-width: 100px;
  }

  .fields-tiers-paid {
    grid-template-columns: 1fr 1fr;
  }

  .request-packages {
    grid-template-columns: repeat(2, 1fr);
  }

  .addon-box {
    flex-direction: column;
  }

  .pricing-tiers {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .fields-tiers-paid {
    grid-template-columns: 1fr;
  }

  .fields-list-wide {
    grid-template-columns: 1fr;
  }

  .request-packages {
    grid-template-columns: 1fr;
  }
}