.ai-page {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  min-height: 100vh;
}
.ai-sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  overflow: auto;
  padding: 2px 24px 24px;
  background: linear-gradient(180deg, var(--sidebar-bg-start), var(--sidebar-bg-end));
  border-right: 1px solid var(--border);
  backdrop-filter: blur(16px);
}
.ai-main {
  min-width: 0;
  padding: 28px;
}
.ai-controls {
  justify-content: center;
  padding: 0 14px;
}
.ai-upload-panel {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}
.ai-upload-panel h2 {
  margin-top: 4px;
  font-size: 1.3rem;
}
.ai-upload-panel .label {
  margin: 4px 0 -2px;
}
.ai-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}
.ai-file-picker {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-width: 0;
  width: 100%;
  padding: 4px;
  border: 1px solid var(--field-border);
  border-radius: 14px;
  background: var(--surface-strong);
  color: var(--text);
  cursor: pointer;
}
.ai-file-picker:hover,
.ai-file-input:focus-visible + .ai-file-picker {
  border-color: var(--accent-border-strong);
  box-shadow: 0 0 0 2px var(--accent-soft);
}
.ai-file-button {
  min-height: 32px;
  padding: 7px 11px;
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  background: linear-gradient(135deg, var(--panel-strong), var(--surface));
  color: var(--text);
  font-weight: 750;
  line-height: 1;
}
.ai-file-name {
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ai-upload-panel select {
  width: 100%;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid var(--field-border);
  border-radius: 14px;
  background: var(--surface-strong);
  color: var(--text);
  font: inherit;
}
.ai-upload-panel select:focus-visible {
  outline: 2px solid var(--toggle-focus);
  outline-offset: 2px;
}
.ai-reference-meta {
  overflow-wrap: anywhere;
  font-size: 0.9rem;
}
.ai-variant-toggle {
  width: 100%;
  border-radius: 18px;
}
.ai-variant-toggle .toggle-button {
  flex: 1 1 0;
  min-width: 0;
  padding-right: 9px;
  padding-left: 9px;
  text-align: center;
}
.ai-hero {
  display: grid;
  gap: 12px;
  margin: 0 auto;
  max-width: 1240px;
  background: var(--summary-bg);
}
.ai-hero h1 {
  margin-top: 6px;
  font-size: clamp(2rem, 3.6vw, 3.5rem);
  line-height: 1;
}
.ai-hero p {
  max-width: 900px;
}
.ai-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  max-width: 1240px;
  margin: 20px auto 0;
}
.ai-metric {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.ai-metric span,
.ai-section-kicker,
.ai-warning-severity {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.1;
  text-transform: uppercase;
}
.ai-metric strong {
  display: block;
  margin-top: 8px;
  color: var(--text);
  font-size: clamp(1.65rem, 3vw, 2.45rem);
  line-height: 1;
}
.ai-metric p {
  margin-top: 8px;
  font-size: 0.9rem;
}
.ai-report-content {
  display: grid;
  gap: 20px;
  width: 100%;
  max-width: none;
  margin: 20px 0 0;
}
.ai-report-content > .empty-card,
.ai-validation-panel {
  width: 100%;
  max-width: 1240px;
  margin-right: auto;
  margin-left: auto;
}
.ai-report-content > .ai-panel:not(.ai-validation-panel) {
  justify-self: center;
  width: fit-content;
  min-width: min(100%, 1240px);
  max-width: 100%;
}
.ai-panel {
  display: grid;
  gap: 14px;
}
.ai-panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}
.ai-panel-head h2,
.ai-panel-head h3 {
  margin-top: 4px;
  font-size: 1.25rem;
}
.ai-chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 6px 10px;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 750;
}
.ai-chip strong {
  margin-left: 6px;
}
.ai-chip small {
  margin-left: 6px;
  color: var(--muted);
  font-size: 0.78rem;
}
.ai-warning-list {
  display: grid;
  gap: 8px;
  max-height: 320px;
  overflow: auto;
}
.ai-warning {
  display: grid;
  gap: 4px;
  padding: 10px 12px;
  border: 1px solid var(--timeout-border);
  border-radius: 12px;
  background: var(--timeout-bg);
}
.ai-warning.schema-error {
  border-color: var(--fail-border);
  background: var(--fail-bg);
}
.ai-warning-severity {
  color: var(--timeout-text);
}
.ai-warning.schema-error .ai-warning-severity {
  color: var(--fail-text);
}
.ai-warning p {
  overflow-wrap: anywhere;
}
.ai-comparison-score {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}
.ai-table-wrap {
  overflow-x: auto;
  max-width: 100%;
  border: 1px solid var(--border-soft);
  border-radius: 14px;
}
.ai-table-wrap table {
  min-width: min(760px, 100%);
  width: 100%;
}
.ai-table-wrap .ai-design-table {
  min-width: 1320px;
  width: max-content;
}
.ai-table-wrap .ai-detail-table {
  min-width: 0;
  width: fit-content;
}
.ai-detail-table th,
.ai-detail-table td {
  white-space: nowrap;
}
.ai-detail-section-row th {
  background: var(--table-section-bg);
  border-top: 1px solid var(--border-strong);
  color: var(--text);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  padding-top: 12px;
  text-align: left;
  text-transform: uppercase;
}
.ai-detail-table tbody:first-of-type .ai-detail-section-row th {
  border-top: 0;
}
.ai-detail-table tbody + tbody .ai-detail-section-row th {
  border-top-width: 2px;
}
.ai-table-wrap th,
.ai-table-wrap td {
  padding: 10px 12px;
}
.ai-table-wrap .ai-detail-section-row th {
  padding: 12px 12px 10px;
}
.ai-design-table th,
.ai-design-table td {
  vertical-align: middle;
}
.ai-design-table .ai-metric-row > td:first-child {
  box-shadow: inset 4px 0 0 var(--accent);
}
.ai-design-table td strong,
.ai-design-table td small,
.ai-expand-button span,
.ai-expand-button small {
  display: block;
}
.ai-design-table td small,
.ai-expand-button small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.78rem;
}
.ai-expand-button {
  display: grid;
  grid-template-columns: 1.1em minmax(0, 1fr);
  column-gap: 6px;
  align-items: start;
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-weight: 750;
  padding: 0;
  text-align: left;
}
.ai-expand-button:hover,
.ai-expand-button:focus-visible {
  outline: none;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.ai-expand-button::before {
  content: "+";
  grid-column: 1;
  grid-row: 1 / span 2;
  width: 1.1em;
  color: var(--accent);
  font-weight: 900;
  line-height: 1.15;
}
.ai-expand-button[aria-expanded="true"]::before {
  content: "-";
}
.ai-expand-button span,
.ai-expand-button small {
  grid-column: 2;
}
.ai-detail-row td {
  background: var(--surface-strong);
  padding: 14px;
}
.ai-detail-grid {
  display: grid;
  gap: 14px;
}
.ai-detail-block {
  display: grid;
  gap: 8px;
}
.ai-detail-block h3 {
  margin: 0;
  font-size: 1rem;
}
.ai-table-wrap td:first-child,
.ai-table-wrap th:first-child {
  white-space: normal;
}
.ai-empty {
  display: grid;
  gap: 8px;
}
@media (max-width: 1120px) {
  .ai-page {
    grid-template-columns: 1fr;
  }
  .ai-sidebar {
    position: relative;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .ai-summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 720px) {
  .ai-sidebar {
    padding: 14px 18px 18px;
  }
  .ai-main {
    padding: 18px;
  }
  .ai-summary-grid {
    grid-template-columns: 1fr;
  }
  .ai-comparison-score {
    justify-content: flex-start;
  }
}