:root {
  --md-sys-color-primary: #7e64f4;
  --md-sys-color-on-primary: #ffffff;
  --md-sys-color-primary-container: #e6ddff;
  --md-sys-color-on-primary-container: #24164f;
  --md-sys-color-surface: #fffdfd;
  --md-sys-color-on-surface: #221a33;
  --md-sys-color-outline: #8a7aa8;
  --md-sys-color-outline-variant: #d4c7ea;
  --md-sys-color-surface-variant: #f4edff;
  --md-sys-color-on-surface-variant: #5d5474;
  --md-sys-elevation-1: 0 1px 2px rgba(0, 0, 0, 0.12), 0 1px 3px rgba(0, 0, 0, 0.08);
  --md-sys-elevation-2: 0 2px 6px rgba(0, 0, 0, 0.12), 0 6px 14px rgba(0, 0, 0, 0.08);
  --motion-duration-short: 150ms;
  --motion-duration-medium: 200ms;
  --motion-ease-standard: cubic-bezier(0.2, 0, 0, 1);

  --page-bg: #faf7ff;
  --page-surface: var(--md-sys-color-surface);
  --page-frame: var(--md-sys-color-outline-variant);
  --page-frame-strong: color-mix(in oklab, var(--md-sys-color-outline-variant) 80%, white 20%);
  --page-accent: var(--md-sys-color-primary);
  --page-ink: var(--md-sys-color-on-surface);
  --page-muted: var(--md-sys-color-on-surface-variant);
  --page-soft: var(--md-sys-color-surface-variant);
  --page-shadow: var(--md-sys-elevation-2);
  --page-radius: 22px;
  --page-radius-sm: 14px;
  --page-max: 1120px;
  --font-title: "Roboto Flex", "Noto Sans JP", sans-serif;
  --font-section: "Noto Sans JP", "Roboto Flex", sans-serif;
  --font-jp: "Noto Sans JP", "Roboto Flex", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(126, 100, 244, 0.18), transparent 34%),
    radial-gradient(circle at top right, rgba(165, 138, 255, 0.14), transparent 28%),
    linear-gradient(180deg, #fffefe 0%, #f5efff 52%, #ece2ff 100%);
  color: var(--page-ink);
  font-family: var(--font-jp);
  line-height: 1.62;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.08;
  background-image: radial-gradient(circle at 1px 1px, #000 1px, transparent 0);
  background-size: 4px 4px;
  mix-blend-mode: soft-light;
  z-index: 0;
}

header {
  position: relative;
  z-index: 3;
}

.site-shell {
  width: min(calc(100vw - 24px), var(--page-max));
  margin: 18px auto 32px;
  padding: 18px;
  border: 1px solid var(--page-frame);
  border-radius: var(--page-radius);
  background: color-mix(in oklab, var(--page-surface) 90%, white 10%);
  box-shadow: var(--page-shadow);
  position: relative;
  z-index: 1;
}

.site-shell::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed color-mix(in oklab, var(--page-accent) 38%, white 62%);
  border-radius: calc(var(--page-radius) - 8px);
  pointer-events: none;
}

.site-header {
  display: grid;
  gap: 10px;
  padding: 10px 6px 16px;
  position: relative;
}

.site-brand {
  font-family: var(--font-title);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0;
}

.site-kicker {
  margin: 0;
  font-family: var(--font-section);
  color: var(--page-accent);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
}

.site-lead {
  margin: 0;
  max-width: 68ch;
  line-height: 1.8;
  color: var(--page-muted);
}

.type-summary,
.doc-list,
.detail-card,
.detail-meta,
.version-table-wrap {
  position: relative;
  z-index: 1;
}

.section-block {
  margin-top: 18px;
  padding: 16px;
  border-radius: var(--page-radius-sm);
  background: color-mix(in oklab, var(--page-soft) 78%, white 22%);
  border: 1px solid var(--page-frame);
}

.section-title {
  margin: 0 0 12px;
  font-family: var(--font-section);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--page-ink);
}

.rule {
  height: 0;
  margin: 10px 0 16px;
  border-top: 2px dotted color-mix(in oklab, var(--page-accent) 70%, white 30%);
  opacity: 0.72;
}

.type-grid,
.doc-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.panel,
.doc-card,
.detail-card,
.version-table-wrap {
  background: var(--page-surface);
  border: 2px solid var(--page-frame-strong);
  border-radius: 18px;
  box-shadow: var(--md-sys-elevation-1);
}

.panel {
  padding: 14px 14px 16px;
}

.panel h3,
.doc-card h3,
.detail-title {
  margin: 0;
  font-size: 1.08rem;
}

.panel .count,
.doc-card .meta,
.detail-meta,
.small-note {
  color: var(--page-muted);
  font-size: 0.92rem;
}

.pill-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--page-soft);
  border: 1px solid color-mix(in oklab, var(--page-accent) 35%, var(--page-frame) 65%);
  font-size: 0.84rem;
}

.doc-grid {
  margin-top: 14px;
}

.doc-card {
  padding: 14px;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform var(--motion-duration-short) var(--motion-ease-standard),
    box-shadow var(--motion-duration-short) var(--motion-ease-standard),
    border-color var(--motion-duration-short) var(--motion-ease-standard);
}

.doc-card:hover,
.doc-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--page-accent);
  box-shadow: var(--md-sys-elevation-2);
}

.doc-card h3 {
  font-size: 1rem;
  line-height: 1.5;
}

.doc-card .summary {
  margin: 8px 0 0;
  line-height: 1.7;
  color: var(--page-muted);
}

.doc-card .footer-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.doc-card .latest {
  font-family: var(--font-section);
  color: var(--page-accent);
}

.doc-card .author {
  color: var(--page-muted);
}

.detail-layout {
  display: grid;
  gap: clamp(20px, 3vw, 28px);
}

.detail-card {
  padding: clamp(16px, 2.2vw, 24px);
}

.detail-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
}

.detail-title {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

.detail-head > div {
  min-width: 0;
}

.detail-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.detail-badge {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--page-soft);
  border: 1px dashed color-mix(in oklab, var(--page-accent) 58%, white 42%);
  font-size: 0.85rem;
}

.version-table-wrap {
  overflow-x: auto;
  padding: clamp(16px, 2.2vw, 24px);
}

.version-table-head {
  padding: 0 0 12px;
}

.version-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 0;
  table-layout: fixed;
}

.version-table th,
.version-table td {
  padding: 12px 10px;
  text-align: left;
  border-bottom: 1px solid color-mix(in oklab, var(--page-frame) 86%, white 14%);
  vertical-align: top;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.version-table th {
  font-family: var(--font-section);
  letter-spacing: 0.06em;
  color: var(--page-accent);
  font-size: 0.92rem;
}

.document-title-link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  color: var(--page-accent);
  text-decoration: underline;
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.14em;
}

.document-title-link:hover,
.document-title-link:focus-visible {
  color: color-mix(in oklab, var(--page-accent) 72%, black 28%);
}

.version-table caption {
  padding: 12px 10px 0;
  text-align: left;
  color: var(--page-muted);
  font-size: 0.9rem;
}

.version-table tbody tr:hover {
  background: color-mix(in srgb, var(--page-soft) 88%, transparent);
}

.version-table td.hash,
.version-table td.file,
.version-table td.date {
  font-family: var(--font-mono);
  font-size: 0.92rem;
}

.version-table td.hash-wrap,
.version-table td.hash-wrap button {
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.version-table td.hash {
  line-height: 1.5;
}

.version-table td.hash button {
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  color: var(--page-accent);
  font: inherit;
  cursor: copy;
  text-decoration: underline;
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.14em;
  transition: color var(--motion-duration-short) var(--motion-ease-standard);
}

.version-table td.hash button:hover,
.version-table td.hash button:focus-visible {
  color: color-mix(in oklab, var(--page-accent) 72%, black 28%);
}

.file-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  max-width: 100%;
  text-decoration: none;
  font-weight: 700;
  color: var(--page-ink);
  transition: color var(--motion-duration-short) var(--motion-ease-standard);
}

.file-link:hover {
  color: var(--page-accent);
}

.file-icon {
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--page-soft);
  border: 1px solid color-mix(in oklab, var(--page-accent) 44%, white 56%);
}

.file-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-feedback {
  min-height: 1.25em;
  margin: 10px 0 0;
  color: var(--page-accent);
  font-size: 0.9rem;
}

.detail-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--page-frame) 78%, white 22%);
  background: var(--page-soft);
  text-decoration: none;
  color: var(--page-ink);
  font-weight: 700;
  transition:
    background-color var(--motion-duration-short) var(--motion-ease-standard),
    border-color var(--motion-duration-short) var(--motion-ease-standard),
    color var(--motion-duration-short) var(--motion-ease-standard);
}

.action-button.primary {
  background: var(--page-accent);
  color: #ffffff;
}

.action-button:focus-visible,
.file-link:focus-visible,
.version-table td.hash button:focus-visible {
  outline: 3px solid color-mix(in oklab, var(--page-accent) 56%, white 44%);
  outline-offset: 3px;
}

.empty-state {
  padding: 18px;
  color: var(--page-muted);
}

.status-line {
  margin: 8px 0 0;
  color: var(--page-muted);
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .site-shell {
    padding: 14px;
  }

  .detail-head {
    grid-template-columns: 1fr;
  }

  .version-table-wrap {
    -webkit-overflow-scrolling: touch;
  }
}

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