:root {
  --md-sys-color-primary: #1558b6;
  --md-sys-color-primary-hover: #0d47a1;
  --md-sys-color-on-primary: #ffffff;
  --md-sys-color-surface: #fef7ff;
  --md-sys-color-surface-container: #f3edf7;
  --md-sys-color-on-surface: #1d1b20;
  --md-sys-color-outline: #49454f;
  --color-critical: #b3261e;
  --color-minor: #a15c00;
  --color-informative: #43474e;
  --focus-ring: #0d47a1;
  --radius-md: 12px;
  --radius-lg: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Roboto", system-ui, sans-serif;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  line-height: 1.6;
}

a {
  color: var(--md-sys-color-primary);
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.md-button.filled:focus-visible {
  outline-color: #ffffff;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}

.app-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  border-bottom: 1px solid var(--md-sys-color-surface-container);
}

.app-bar h1 {
  font-size: 1.25rem;
  font-weight: 500;
  margin: 0;
  color: var(--md-sys-color-primary);
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.subtitle {
  color: var(--md-sys-color-outline);
  margin-bottom: 24px;
}

.card {
  background: var(--md-sys-color-surface-container);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.field-label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
}

textarea {
  width: 100%;
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 0.875rem;
  padding: 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--md-sys-color-outline);
  background: #fff;
  resize: vertical;
}

textarea#html-input.drag-over {
  border-color: var(--md-sys-color-primary);
  border-style: dashed;
  background: rgba(21, 88, 182, 0.06);
}

.upload-row {
  margin-top: 16px;
}

.advanced-options {
  margin-top: 16px;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--radius-md);
  padding: 4px 16px;
}

.advanced-options > summary {
  cursor: pointer;
  padding: 12px 0;
  font-weight: 500;
}

.option-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  cursor: pointer;
}

.option-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--md-sys-color-primary);
}

.option-field {
  margin-top: 16px;
}

.option-field select {
  width: min(240px, 100%);
  min-height: 44px;
  font: inherit;
  padding: 8px 12px;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--radius-md);
  background: #fff;
}

.severity-options {
  border: 0;
  padding: 0;
  margin-bottom: 12px;
}

.severity-options legend {
  font-weight: 500;
  margin-bottom: 4px;
}

.option-caption {
  color: var(--md-sys-color-outline);
  font-size: 0.875rem;
  margin: 0 0 16px 26px;
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.error {
  color: var(--color-critical);
  margin-top: 12px;
}

.score-row:not([hidden]) {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-size: 1.1rem;
  margin-bottom: 8px;
}

#score-value {
  font-size: 2rem;
}

.md-divider {
  border: none;
  border-top: 1px solid rgba(0, 0, 0, 0.12);
  margin: 16px 0;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.result-header h2 {
  margin: 0;
}

.rules-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  font-size: 0.875rem;
}

.rules-summary-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--md-sys-color-surface-container-low, #f4f3ef);
  border-radius: var(--radius-md);
  padding: 16px;
}

.rules-summary-label {
  color: var(--md-sys-color-on-surface-variant, #44483c);
}

.rules-summary-value {
  font-size: 1.75rem;
  line-height: 1.2;
}

.rules-summary-item.passed .rules-summary-value {
  color: #1e8e3e;
}

.rules-summary-item.critical .rules-summary-value {
  color: var(--color-critical);
}

.rules-summary-item.minor .rules-summary-value {
  color: var(--color-minor);
}

.rules-summary-item.informative .rules-summary-value {
  color: var(--color-informative);
}

@media (max-width: 480px) {
  .rules-summary {
    grid-template-columns: repeat(2, 1fr);
  }

  .actions,
  .result-header {
    align-items: stretch;
    flex-direction: column;
  }
}

.severity-legend {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.severity-legend li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--md-sys-color-outline);
}

.severity-legend .severity-badge {
  flex-shrink: 0;
}

.md-button {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 10px 24px;
  border-radius: 999px;
  cursor: pointer;
  border: 1px solid transparent;
}

.md-button.filled {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

.md-button.filled:hover {
  background: var(--md-sys-color-primary-hover);
}

.md-button.outlined {
  background: transparent;
  border-color: var(--md-sys-color-outline);
  color: var(--md-sys-color-primary);
}

.md-button.outlined:hover {
  background: rgba(21, 88, 182, 0.08);
}


.findings-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0 0;
}

.finding-group {
  border-radius: var(--radius-md);
  background: #fff;
  border-left: 6px solid var(--color-informative);
}

.finding-group.critical {
  border-left-color: var(--color-critical);
}

.finding-group.minor {
  border-left-color: var(--color-minor);
}

.finding-group.informative {
  border-left-color: var(--color-informative);
}

.finding-group > summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
}

.finding-group > summary::-webkit-details-marker {
  display: none;
}

.finding-group > summary::before {
  content: "▸";
  color: var(--md-sys-color-outline);
  transition: transform 0.15s ease;
}

.finding-group[open] > summary::before {
  transform: rotate(90deg);
}

.finding-index {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--md-sys-color-outline);
  flex-shrink: 0;
  min-width: 1.5em;
}

.severity-badge {
  font-size: 0.8125rem;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  color: #fff;
  flex-shrink: 0;
}

.severity-badge.critical {
  background: var(--color-critical);
}

.severity-badge.minor {
  background: var(--color-minor);
}

.severity-badge.informative {
  background: var(--color-informative);
}

.finding-message {
  font-weight: 500;
  flex: 1 1 240px;
}

.finding-clients {
  font-size: 0.875rem;
  color: var(--md-sys-color-outline);
}

a.finding-source {
  font-size: 0.875rem;
  color: var(--md-sys-color-primary);
  text-decoration: underline;
}

.finding-count {
  font-size: 0.875rem;
  color: var(--md-sys-color-outline);
  white-space: nowrap;
}

.toggle-hint {
  font-size: 0.8125rem;
  color: var(--md-sys-color-primary);
  white-space: nowrap;
}

.finding-group:not([open]) .toggle-hint-open,
.finding-group[open] .toggle-hint-closed {
  display: none;
}

.finding-detail {
  margin: 0;
  padding: 0 16px 12px;
  font-size: 0.875rem;
  color: var(--md-sys-color-outline);
}

.finding-action {
  margin: 0;
  padding: 0 16px 12px;
  font-size: 0.875rem;
}

.finding-action strong {
  color: var(--md-sys-color-outline);
  font-weight: 600;
}

.finding-occurrences {
  list-style: none;
  margin: 0;
  padding: 0 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.finding-occurrences li {
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  padding-top: 8px;
}

.finding-line {
  display: block;
  font-size: 0.8125rem;
  color: var(--md-sys-color-outline);
  margin-bottom: 2px;
}

.finding-snippet {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface);
  white-space: pre-wrap;
  word-break: break-all;
}

.app-footer {
  border-top: 1px solid var(--md-sys-color-surface-container);
  padding: 24px 16px 40px;
}

.selling-points {
  max-width: 760px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 32px;
  color: var(--md-sys-color-outline);
  font-size: 0.875rem;
  text-align: center;
}