:root {
  --surface-raised:#fff;
  --surface-hover:#eee;
  --line-strong:#d6d6d6;
  --ink-secondary:#444;
  --on-ink:#fff;
  --positive:#397153;
  --negative:#922e24;
  --control-border:var(--line);
  --error-surface:#fdf1f1;
}
html[data-appearance=dark] {
  --ink:#ececec;
  --muted:#a3a3a3;
  --surface:#212121;
  --surface-raised:#292929;
  --surface-hover:#333;
  --subtle:#2b2b2b;
  --line:#3b3b3b;
  --line-strong:#535353;
  --ink-secondary:#d0d0d0;
  --on-ink:#171717;
  --positive:#87b89a;
  --negative:#e29d94;
  --control-border:#6e6e6e;
  --select-chevron:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%23d0d0d0' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 7.5 5 5 5-5'/%3E%3C/svg%3E");
  --error-surface:#362524;
  color-scheme: dark;
}
html[data-contrast=high] {
  --muted:#444;
  --line:#b5b5b5;
  --line-strong:#777;
}
html[data-appearance=dark][data-contrast=high] {
  --muted:#d0d0d0;
  --line:#777;
  --line-strong:#aaa;
}
.wordmark {
  font-weight: 700;
}
.account-control {
  position: relative;
}
.account-initials {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: var(--subtle);
}
.account-menu {
  position: absolute;
  right: 0;
  top: 52px;
  width: 268px;
  z-index: 80;
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 40px #00000010;
  padding: 9px;
}
.account-menu[hidden] {
  display: none !important;
}
.account-menu-heading {
  display: flex;
  gap: 11px;
  align-items: center;
  padding: 13px 12px 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 6px;
}
.account-menu-heading strong {
  font-size: 14px;
  font-weight: 500;
}
.account-menu-heading small {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-top: 4px;
}
.account-avatar {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--subtle);
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 500;
  flex-shrink: 0;
}
.account-avatar svg {
  width: 19px;
  height: 19px;
}
.account-menu-items {
  display: grid;
  gap: 2px;
}
.account-menu-items > a,
.account-menu-items > button {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 9px;
  text-align: left;
  font: inherit;
  font-size: 13px;
  min-height: 44px;
  color: var(--ink);
  background: none;
  cursor: pointer;
}
.account-menu-items svg {
  width: 18px;
  height: 18px;
  color: var(--muted);
}
.account-menu-items > a:hover,
.account-menu-items > button:hover {
  background: var(--subtle);
}
.account-menu-items .account-connect {
  margin-top: 7px;
  border-top: 1px solid var(--line);
  border-radius: 0;
}
.account-menu-items .account-connect svg {
  margin-left: auto;
}
.site-footer.complete-footer {
  display: block;
  max-width: var(--content-max);
  margin: 70px auto 0;
  padding: 48px var(--page-gutter) 25px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 44px;
}
.footer-top nav {
  display: grid;
  align-content: start;
  gap: 12px;
}
.footer-top nav > span {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
.footer-top nav > a {
  font-size: 13px;
}
.footer-top nav > a:hover {
  text-decoration: underline;
}
.footer-socials {
  display: flex;
  gap: 8px;
  margin-top: 18px;
}
.footer-socials > a {
  display: grid;
  place-items: center;
  min-width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--ink);
}
.footer-socials > a:hover {
  background: var(--subtle);
}
.footer-socials svg {
  width: 21px;
  height: 21px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border-top: 1px solid var(--line);
  padding-top: 25px;
  margin-top: 38px;
  font-size: 11px;
  color: var(--muted);
}
.footer-bottom > div {
  display: flex;
  gap: 22px;
  align-items: center;
  flex-wrap: wrap;
}
.footer-bottom a:hover {
  color: var(--ink);
}
.footer-locale {
  display: flex;
  align-items: center;
  gap: 7px;
}
.footer-locale svg {
  width: 15px;
  height: 15px;
}
.settings-main,
.info-main {
  max-width: var(--content-max);
  margin: auto;
  padding: 52px var(--page-gutter) 80px;
}
.settings-heading h1,
.info-heading h1 {
  font-weight: 500;
  font-size: 38px;
  letter-spacing: -1.3px;
  line-height: 1.18;
  margin: 15px 0;
}
.settings-heading p,
.info-heading p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 600px;
}
.settings-layout {
  display: grid;
  grid-template-columns: 205px minmax(0, 1fr);
  gap: 56px;
  margin-top: 45px;
}
.settings-layout nav {
  display: grid;
  align-content: start;
  gap: 4px;
}
.settings-layout nav > a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  font-size: 13px;
  border-radius: 9px;
  min-height: 44px;
  color: var(--muted);
}
.settings-layout nav svg {
  width: 18px;
  height: 18px;
}
.settings-layout nav > a[aria-current=page] {
  background: var(--subtle);
  color: var(--ink);
}
.settings-layout nav > a:hover {
  color: var(--ink);
}
.settings-content > h2 {
  font-size: 23px;
  font-weight: 500;
  letter-spacing: -.5px;
  margin: 0 0 32px;
}
.preference-group {
  border: 0;
  margin: 0 0 32px;
  padding: 0;
}
.preference-group legend {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 14px;
}
.preference-choices {
  display: grid;
  gap: 10px;
}
.preference-choices > label {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 74px;
  cursor: pointer;
  border: 1px solid var(--line);
  padding: 16px;
  border-radius: 12px;
  background: var(--surface);
}
.preference-choices > label:has(input:checked) {
  border-color: var(--ink);
}
.preference-choices input {
  accent-color: var(--ink);
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}
.preference-choices strong {
  font-size: 14px;
  font-weight: 500;
}
.preference-choices small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 5px;
}
.appearance-swatch {
  width: 62px;
  height: 38px;
  border-radius: 6px;
  background: #f5f5f5;
  border: 1px solid #ddd;
  margin-left: auto;
  padding: 7px;
  display: grid;
  gap: 4px;
  flex-shrink: 0;
}
.appearance-swatch b {
  background: #ddd;
  height: 5px;
  border-radius: 4px;
  width: 60%;
}
.appearance-swatch b:last-child {
  width: 85%;
}
.appearance-swatch.dark {
  background: #212121;
  border-color: #666;
}
.appearance-swatch.dark b {
  background: #555;
}
.appearance-swatch.system {
  background:
    linear-gradient(
      90deg,
      #f5f5f5 50%,
      #212121 50%);
}
.settings-note,
.settings-info {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}
.settings-info {
  padding: 20px;
  background: var(--subtle);
  border-radius: 12px;
  display: flex;
  gap: 10px;
}
.settings-info svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 3px;
}
.settings-bottom {
  display: flex;
  gap: 20px;
  justify-content: space-between;
  padding-top: 23px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
.account-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 30px;
}
.account-summary .account-avatar {
  width: 48px;
  height: 48px;
}
.account-summary h3 {
  font-size: 20px;
  font-weight: 500;
  margin: 0;
}
.account-summary p {
  font-size: 12px;
  color: var(--muted);
  margin: 5px 0;
}
.settings-description {
  margin-bottom: 32px;
}
.settings-description h3,
.settings-local-preview h3,
.settings-data-row h3 {
  font-size: 17px;
  font-weight: 500;
  margin: 0 0 9px;
  letter-spacing: -.2px;
}
.settings-description p,
.settings-local-preview p,
.settings-data-row p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0 0 20px;
}
.settings-local-preview {
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.settings-local-preview .text-link {
  display: block;
  margin-top: 18px;
}
.settings-data-row {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: flex-start;
  border-top: 1px solid var(--line);
  padding: 26px 0;
}
.settings-data-row p {
  font-size: 13px;
  max-width: 440px;
  margin: 0;
}
.settings-data-row .button {
  min-width: 110px;
}
.preference-status {
  font-size: 12px;
  color: var(--muted);
  background: var(--subtle);
  padding: 7px 10px;
  border-radius: 7px;
  white-space: nowrap;
}
.info-layout {
  display: grid;
  grid-template-columns: 205px minmax(0, 1fr);
  gap: 56px;
  margin-top: 40px;
}
.info-layout nav {
  display: grid;
  align-content: start;
  gap: 3px;
}
.info-layout nav > a {
  font-size: 13px;
  padding: 12px;
  border-radius: 8px;
  color: var(--muted);
  min-height: 44px;
}
.info-layout nav > a[aria-current=page] {
  background: var(--subtle);
  color: var(--ink);
}
.info-content h2 {
  font-size: 25px;
  font-weight: 500;
  letter-spacing: -.6px;
  margin: 0 0 16px;
}
.info-content h3 {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -.3px;
  margin: 24px 0 10px;
}
.info-content p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 670px;
}
.info-content section {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.info-content section:first-child {
  padding-top: 0;
}
.info-list {
  display: grid;
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 24px 0;
}
.info-list > li {
  display: flex;
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}
.info-list svg {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  flex-shrink: 0;
}
.info-form {
  display: grid;
  gap: 20px;
  margin: 26px 0;
}
.info-form > label {
  display: grid;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}
.info-form input,
.info-form select,
.info-form textarea {
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  padding: 10px var(--control-padding-x);
  background: var(--surface);
  font: inherit;
  color: var(--ink);
  font-size: var(--control-font-size);
  width: 100%;
  min-height: var(--control-height);
}
.info-form textarea {
  min-height: 120px;
  resize: vertical;
}
.info-form .actions {
  flex-wrap: wrap;
}
.info-status {
  display: flex;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  gap: 25px;
}
.info-status span {
  font-size: 12px;
  color: var(--muted);
}
.info-summary-note {
  font-size: 12px !important;
  padding: 12px 15px;
  background: var(--subtle);
  border-radius: 8px;
}
html[data-motion=reduced] *,
html[data-motion=reduced] *::before,
html[data-motion=reduced] *::after {
  scroll-behavior: auto !important;
  transition: none !important;
  animation: none !important;
}
@media (prefers-reduced-motion: reduce) {
  html:not([data-motion=standard]) * {
    scroll-behavior: auto !important;
  }
}
html[data-density=compact] .data-table td,
html[data-density=compact] .audience-table td,
html[data-density=compact] .cm-table td {
  padding-top: 12px;
  padding-bottom: 12px;
}
html[data-text-size=larger] main p,
html[data-text-size=larger] main label,
html[data-text-size=larger] main td,
html[data-text-size=larger] main button,
html[data-text-size=larger] main input,
html[data-text-size=larger] main select {
  font-size: 16px;
}
html[data-text-size=larger] main small {
  font-size: 13px;
}
html[data-appearance=dark] .button,
html[data-appearance=dark] .studio-button.primary {
  background: var(--ink);
  color: var(--on-ink);
}
html[data-appearance=dark] .button.secondary,
html[data-appearance=dark] .button.outline {
  background: var(--subtle);
  color: var(--ink);
}
html[data-appearance=dark] .data-chart svg text,
html[data-appearance=dark] .frontier-chart text {
  fill: var(--muted);
}
html[data-appearance=dark] .data-grid {
  stroke: var(--line);
}
html[data-appearance=dark] svg path[stroke="#171717"],
html[data-appearance=dark] svg path[stroke="#0d0d0d"] {
  stroke: var(--ink);
}
html[data-appearance=dark] .data-legend span:first-child i {
  background: var(--ink) !important;
}
html[data-appearance=dark] .frontier-chart circle {
  fill: var(--ink);
}
html[data-appearance=dark] .frontier-chart .frontier-number {
  fill: var(--surface);
}
@media (max-width: 1050px) {
  .site-header {
    gap: 12px;
  }
  .main-nav {
    gap: 0 !important;
  }
  .main-nav > a {
    padding-left: 11px;
    padding-right: 11px;
  }
  .site-header .studio-link {
    display: none;
  }
  .footer-top {
    gap: 30px;
  }
}
@media (max-width: 850px) {
  .footer-top {
    grid-template-columns: 1.3fr 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1/-1;
  }
  .settings-layout,
  .info-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }
  .settings-layout nav,
  .info-layout nav {
    display: flex;
    overflow: auto;
    border-bottom: 1px solid var(--line);
    padding-bottom: 12px;
  }
  .settings-layout nav > a,
  .info-layout nav > a {
    white-space: nowrap;
    flex-shrink: 0;
  }
  .settings-content,
  .info-content {
    min-width: 0;
  }
  .menu-open .main-nav {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}
@media (max-width: 600px) {
  .site-footer.complete-footer {
    padding: 34px var(--page-gutter) 24px;
    margin-top: 48px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 30px 20px;
  }
  .footer-top > nav:last-child {
    grid-column: 1/-1;
  }
  .footer-bottom > div {
    gap: 18px;
  }
  .footer-locale {
    flex-basis: 100%;
  }
  .settings-main,
  .info-main {
    padding: 30px var(--page-gutter) 55px;
  }
  .settings-heading h1,
  .info-heading h1 {
    font-size: 30px;
    letter-spacing: -1px;
  }
  .settings-layout,
  .info-layout {
    margin-top: 30px;
  }
  .settings-data-row {
    flex-wrap: wrap;
    gap: 15px;
  }
  .account-menu {
    right: -44px;
    width: min(268px, calc(100vw - 32px));
  }
  .preference-choices small {
    font-size: 11px;
  }
  .preference-choices > label {
    padding: 14px;
    gap: 10px;
  }
  .settings-bottom {
    flex-wrap: wrap;
  }
  .account-menu-items > a,
  .account-menu-items > button {
    font-size: 13px;
  }
}
html[data-appearance=dark] .cm-badge,
html[data-appearance=dark] .cm-badge.pending {
  background: var(--subtle);
  color: var(--muted);
}
html[data-appearance=dark] .cm-field-error,
html[data-appearance=dark] .field-error {
  color: var(--negative);
}
html[data-appearance=dark] .cm-error {
  background: #362524;
  color: var(--negative);
}
html[data-appearance=dark] .community-field-error,
html[data-appearance=dark] .community-form-message {
  color: var(--negative);
}
@media (max-width: 700px) {
  .connect-page[data-setup=false] .connect-layout .prompt-panel {
    grid-row: 1;
  }
  .connect-page[data-setup=false] .connect-layout .connect-instructions {
    grid-row: 2;
  }
}
.game-design-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
}
.game-design-layout .concept-idea {
  margin-bottom: 35px;
}
.game-design-facts {
  border-left: 1px solid var(--line);
  padding-left: 32px;
}
.game-design-facts h3 {
  font-size: 20px;
}
.game-design-facts dl {
  margin: 22px 0;
}
.game-design-facts dl > div {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.game-design-facts dt {
  color: var(--muted);
}
.game-design-facts dd {
  margin: 0;
}
.game-design-facts p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}
@media (max-width: 700px) {
  .game-design-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .game-design-facts {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 28px 0 0;
  }
  .game-design-facts dl > div {
    grid-template-columns: 90px minmax(0, 1fr);
  }
}

/* Browser-owned form parts must follow the active interface appearance. */
html[data-appearance=light] {
  color-scheme: light;
}
html[data-appearance=dark] :is(input, select, textarea) {
  color-scheme: dark;
  color: var(--ink);
  caret-color: var(--ink);
}
html[data-appearance=dark] :is(input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=file]):not([type=hidden]), select, textarea) {
  border-color: var(--control-border);
}
html[data-appearance=dark] :is(input, textarea)::placeholder {
  color: var(--muted);
  opacity: 1;
}
html[data-appearance=dark] :is(select option, select optgroup) {
  color: var(--ink);
  background: var(--surface-raised);
}
html[data-appearance=dark] :is(input, select, textarea):disabled {
  color: var(--muted);
  -webkit-text-fill-color: var(--muted);
  background-color: var(--subtle);
  cursor: not-allowed;
  opacity: 1;
}
html[data-appearance=dark] :is(input, textarea)[readonly] {
  color: var(--ink-secondary);
}
html[data-appearance=dark] :is(input, select, textarea):not(:disabled):hover {
  border-color: var(--muted);
}
html[data-appearance=dark] :is(input, select, textarea):focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-color: var(--focus);
  box-shadow: none;
}
html[data-appearance=dark] :is(input, select, textarea)[aria-invalid=true] {
  border-color: var(--negative);
}
html[data-appearance=dark] :is(input[type=checkbox], input[type=radio], input[type=range]) {
  accent-color: var(--ink);
}
html[data-appearance=dark] input[type=file]::file-selector-button {
  font: inherit;
  color: var(--ink);
  background: var(--surface-raised);
  border: 1px solid var(--control-border);
  border-radius: 8px;
  padding: 8px 12px;
  margin-right: 12px;
  cursor: pointer;
}
html[data-appearance=dark] input[type=file]::file-selector-button:hover {
  background: var(--surface-hover);
}
html[data-appearance=dark] input:-webkit-autofill,
html[data-appearance=dark] input:-webkit-autofill:hover,
html[data-appearance=dark] input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--ink);
  caret-color: var(--ink);
  box-shadow: 0 0 0 1000px var(--surface) inset;
}
html[data-appearance=dark] .cm-form-error {
  color: var(--negative);
  background: var(--error-surface);
}
html[data-appearance=dark] .data-chart :is(circle, rect)[fill="#171717"],
html[data-appearance=dark] .data-chart :is(circle, rect)[fill="#0d0d0d"] {
  fill: var(--ink);
}
html[data-appearance=dark] .studio-page :focus-visible {
  outline-color: var(--focus);
}

.header-login {
  display: inline-flex;
  align-items: center;
  min-height: var(--control-height);
  font-size: 14px;
  white-space: nowrap;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--ink);
  text-decoration: none;
}
.header-login:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}
@media (max-width: 600px) {
  .header-login {
    font-size: 13px;
    padding: 9px 12px;
  }
  .header-actions {
    gap: 6px;
  }
  .header-actions .search-toggle {
    display: none;
  }
}
@media (max-width: 350px) {
  .header-login {
    display: none;
  }
}

/* One native select treatment across player, creator and data surfaces.
   Keep the browser's menu/keyboard behavior; only the closed control is drawn here. */
html[data-appearance] select:not([multiple]):not([size]) {
  appearance:none;
  -webkit-appearance:none;
  background-image:var(--select-chevron);
  background-repeat:no-repeat;
  background-position:right var(--control-padding-x) center;
  background-size:20px 20px;
  height:var(--control-height);
  min-height:var(--control-height);
  padding-block:10px;
  padding-inline-start:var(--control-padding-x);
  padding-inline-end:calc(var(--control-padding-x) + 30px);
  font-size:var(--control-font-size);
  line-height:1.4;
  color:var(--ink);
  cursor:pointer;
}
html[data-appearance] select:not([multiple]):not([size]):disabled { cursor:not-allowed; }
html[data-appearance] :is(input[type=radio],input[type=checkbox],input[type=range]) { accent-color:var(--ink); }
html[data-appearance] :is(input,select,textarea,button,a):focus-visible { outline-color:var(--focus); }
::selection { color:var(--on-ink); background:var(--ink); }

.media-credit-list { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:32px 24px; }
.media-credit-list section { padding:0; border:0; min-width:0; }
.media-credit-list img { width:100%; aspect-ratio:16/10; object-fit:cover; border-radius:12px; margin-bottom:16px; }
.media-credit-list h2 { font-size:18px; line-height:1.4; }
.media-credit-list p { font-size:13px; margin-block:8px; }
.media-credit-list a { text-decoration:underline; text-underline-offset:3px; }
@media(max-width:600px) { .media-credit-list { grid-template-columns:1fr; } }

/* Product pages share an outer frame; reading columns and Studio navigation
   remain internal layouts rather than competing page-width definitions. */
html :is(.page,.analysis-main,.insights-main,.participants-main,.community-main,.player-shell,.settings-main,.info-main,.access-main) {
  width:100%; max-width:var(--content-max); margin-inline:auto; padding-inline:var(--page-gutter); min-width:0;
}
html .studio-shell { width:100%; max-width:var(--content-max); padding-inline:var(--page-gutter); }

/* A single accessible checkbox, drawn with semantic colors and native state. */
html[data-appearance] input[type=checkbox] {
  appearance:none; -webkit-appearance:none; display:inline-grid; place-items:center;
  width:18px; height:18px; min-width:18px; min-height:18px; flex:0 0 18px;
  padding:0; border:1px solid var(--control-border); border-radius:5px;
  background:var(--surface); color:var(--on-ink); vertical-align:middle; cursor:pointer;
  transition:background-color 120ms ease,border-color 120ms ease;
}
html[data-appearance] input[type=checkbox]::after {
  content:""; width:5px; height:10px; border-right:2px solid var(--on-ink); border-bottom:2px solid var(--on-ink);
  transform:translateY(-1px) rotate(45deg); opacity:0;
}
html[data-appearance] input[type=checkbox]:checked { background:var(--ink); border-color:var(--ink); }
html[data-appearance] input[type=checkbox]:checked::after { opacity:1; }
html[data-appearance] input[type=checkbox]:indeterminate { background:var(--ink); border-color:var(--ink); }
html[data-appearance] input[type=checkbox]:indeterminate::after { width:9px; height:0; border-right:0; border-bottom:2px solid var(--on-ink); transform:none; opacity:1; }
html[data-appearance] input[type=checkbox]:disabled { opacity:.45; cursor:not-allowed; }
html[data-appearance] input[type=checkbox]:focus-visible { outline:2px solid var(--focus); outline-offset:3px; }

/* Compound search fields have one focus boundary around icon, text and hint. */
html[data-appearance] .search-dialog .search-field {
  height:var(--control-height); min-height:var(--control-height); border:1px solid transparent;
  transition:border-color 140ms ease,background-color 140ms ease;
}
html[data-appearance] .search-dialog .search-field input {
  flex:1; height:calc(var(--control-height) - 2px); min-height:0;
  border:0; border-radius:0; padding:0; background:transparent; line-height:1.4;
}
html[data-appearance] :is(.search-field,.analysis-search,.studio-search) input:focus-visible,
html[data-appearance] .catalog-query-field input:focus-visible { outline:none; box-shadow:none; }
html[data-appearance] :is(.search-field,.analysis-search,.studio-search):focus-within { outline:none; box-shadow:0 0 0 1px var(--focus); }
html[data-appearance] .search-dialog .search-field:focus-within { border-color:var(--ink); }

/* Shared actions settle at the same card edge even with variable copy. */
.activity-card { display:flex; flex-direction:column; min-width:0; }
.activity-card > .text-link:last-child { margin-top:auto; padding-top:20px; }
@media(prefers-reduced-motion:reduce) { html[data-appearance] input[type=checkbox] { transition:none; } }

/* Only adjacent table rows need dividers; section/panel edges provide closure. */
html[data-appearance] table tbody tr:last-child,
html[data-appearance] table tbody tr:last-child > :is(th,td) { border-bottom:0; }