/* Shared native-dialog shell and focus; account and media variants retain independent geometry and behavior. */
.account-dialog,
.portal-modal {
  position: fixed;
  border: 0;
  padding: 0;
  color: var(--foreground);
}
.account-dialog__close:focus-visible,
.account-dialog-portal:focus-visible,
.account-dialog__action:focus-visible,
.portal-modal button:focus-visible,
.portal-modal a:focus-visible,
.portal-modal summary:focus-visible,
.portal-modal [tabindex]:focus-visible { outline: 2px solid var(--accent); }
.gh-mobile-menu__member-actions [data-account-dialog-open] {
  align-self: stretch;
  width: 100%;
  min-height: 3.5rem;
  border-radius: var(--fs-radius-pill);
  background: var(--accent);
  color: var(--accent-foreground);
  font-weight: var(--fs-weight-semibold);
}

.gh-mobile-menu__member-actions [data-account-dialog-open]:hover {
  opacity: 0.9;
}

.account-dialog {
  top: 50%;
  left: 50%;
  width: min(calc(100vw - var(--fs-gutter) - var(--fs-gutter)), 32rem);
  max-width: 100%;
  max-height: calc(100dvh - var(--fs-space-8));
  margin: 0;
  border-radius: var(--fs-radius-lg);
  background: var(--background);
  box-shadow: 0 1.5rem 4rem rgb(0 0 0 / 0.2);
  transform: translate(-50%, -50%);
}

.account-dialog::backdrop {
  background: rgb(0 0 0 / 0.44);
  backdrop-filter: blur(0.35rem);
}

.account-dialog__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: visible;
  padding: clamp(var(--fs-space-6), 5vw, var(--fs-space-10));
}

.account-dialog__screen {
  display: flex;
  flex-direction: column;
}

.account-dialog__screen[hidden] {
  display: none;
}

.account-dialog__close {
  position: absolute;
  top: var(--fs-space-5);
  right: var(--fs-space-5);
  display: inline-flex;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  border-radius: var(--fs-radius-pill);
  color: var(--muted-foreground);
  cursor: pointer;
}

.account-dialog__close:hover {
  color: var(--foreground);
  background: var(--muted);
}

.account-dialog__close:focus-visible,
.account-dialog-portal:focus-visible,
.account-dialog__action:focus-visible {
  outline-offset: 4px;
}

.account-dialog__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--fs-space-2) var(--fs-space-8) var(--fs-space-8);
  text-align: center;
}

.account-dialog__avatar {
  display: inline-flex;
  width: 4rem;
  height: 4rem;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--accent);
  border-radius: var(--fs-radius-pill);
  color: var(--accent);
}

.account-dialog__header h2 {
  margin: var(--fs-space-4) 0 0;
  color: var(--foreground);
  font-size: var(--fs-font-heading-md);
  line-height: var(--fs-line-heading);
  font-weight: var(--fs-weight-semibold);
}

.account-dialog__header p {
  display: flex;
  max-width: 100%;
  flex-direction: column;
  gap: var(--fs-space-1);
  margin: var(--fs-space-4) 0 0;
  color: var(--muted-foreground);
  font-size: var(--fs-font-md);
  line-height: var(--fs-line-snug);
}

.account-dialog__header strong {
  color: var(--foreground);
  font-weight: var(--fs-weight-semibold);
}

.account-dialog__header span {
  overflow-wrap: anywhere;
}

.account-dialog__subheader {
  padding: var(--fs-space-2) var(--fs-space-8) var(--fs-space-8) 0;
}

.account-dialog__subheader h2 {
  margin: var(--fs-space-5) 0 0;
  color: var(--foreground);
  font-size: var(--fs-font-heading-md);
  line-height: var(--fs-line-heading);
  font-weight: var(--fs-weight-semibold);
}

.account-dialog__back {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  border-radius: var(--fs-radius-pill);
  color: var(--muted-foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  cursor: pointer;
}

.account-dialog__back::before {
  margin-right: var(--fs-space-2);
  content: "←";
}

.account-dialog__back:hover {
  color: var(--foreground);
}

.account-dialog__section {
  border: 1px solid var(--border);
  border-radius: var(--fs-radius-md);
  background: var(--background);
}

.account-dialog__section + .account-dialog__section {
  margin-top: var(--fs-space-4);
}

.account-dialog__section--portals:has(.account-dialog__portal-list:empty) {
  display: none;
}

.account-dialog__section h3 {
  margin: 0;
  border-bottom: 1px solid var(--border);
  padding: var(--fs-space-4) var(--fs-space-5);
  color: var(--muted-foreground);
  font-size: var(--fs-font-xs);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.account-dialog__portal-list,
.account-dialog__actions {
  display: flex;
  flex-direction: column;
}

.account-dialog-portal,
.account-dialog__action {
  display: flex;
  width: 100%;
  min-height: 4rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--fs-space-4);
  border: 0;
  border-bottom: 1px solid var(--border);
  padding: var(--fs-space-4) var(--fs-space-5);
  color: var(--foreground);
  font-size: var(--fs-font-md);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.account-dialog-portal:last-child,
.account-dialog__action:last-child {
  border-bottom: 0;
}

.account-dialog-portal:hover,
.account-dialog__action:hover {
  background: var(--muted);
}

.account-dialog-portal span:first-child {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: var(--fs-space-1);
}

.account-dialog-portal strong {
  overflow: hidden;
  color: var(--foreground);
  font-weight: var(--fs-weight-semibold);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.account-dialog-portal small {
  color: var(--muted-foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-snug);
}

.account-dialog-portal span:last-child {
  color: var(--accent);
  font-size: var(--fs-font-sm);
  font-weight: var(--fs-weight-semibold);
}

.account-dialog__action {
  background: transparent;
}

.account-dialog__action--muted {
  color: var(--muted-foreground);
}

.account-dialog__details {
  display: flex;
  flex-direction: column;
}

.account-dialog__details > div {
  display: flex;
  flex-direction: column;
  gap: var(--fs-space-1);
  border-bottom: 1px solid var(--border);
  padding: var(--fs-space-4) var(--fs-space-5);
}

.account-dialog__details > div:last-child {
  border-bottom: 0;
}

.account-dialog__details span {
  color: var(--muted-foreground);
  font-size: var(--fs-font-xs);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.account-dialog__details strong {
  color: var(--foreground);
  font-size: var(--fs-font-md);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  overflow-wrap: anywhere;
}

.account-dialog__note {
  margin: var(--fs-space-5) 0 0;
  color: var(--muted-foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-relaxed);
}

.account-dialog__primary {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  margin-top: var(--fs-space-6);
  border-radius: var(--fs-radius-pill);
  padding: var(--fs-space-3) var(--fs-space-6);
  background: var(--accent);
  color: var(--accent-foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  text-decoration: none;
}

.account-dialog__primary:hover {
  opacity: 0.9;
}

.portal-modal__file-icon,
.portal-modal__file-icon {
  display: inline-flex;
  min-width: 4rem;
  min-height: 4rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--fs-radius-md);
  padding: var(--fs-space-3);
  background: var(--background);
  color: var(--foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  text-align: center;
}

.portal-modal button:focus-visible,
.portal-modal a:focus-visible,
.portal-modal summary:focus-visible,
.portal-modal [tabindex]:focus-visible {
  outline-offset: 3px;
}

html.portal-modal-open,
body.portal-modal-open {
  width: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

.portal-modal {
  inset: var(--fs-space-4);
  box-sizing: border-box;
  width: min(86rem, calc(100vw - var(--fs-space-8)));
  height: min(52rem, calc(100vh - var(--fs-space-8)));
  height: min(52rem, calc(100dvh - var(--fs-space-8)));
  max-width: none;
  max-height: none;
  margin: auto;
  overflow: visible;
  background: transparent;
}

.portal-modal::backdrop {
  background: rgb(0 0 0 / 0.42);
}

.portal-modal--fallback {
  position: fixed;
  z-index: 10000;
  inset: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: var(--fs-space-4);
  overflow: hidden;
  background: rgb(0 0 0 / 0.42);
}

.portal-modal--fallback[open] {
  display: grid;
}

.portal-modal--fallback:not([open]) {
  display: none;
}

.portal-modal--fallback .portal-modal__panel {
  width: min(86rem, calc(100vw - var(--fs-space-8)));
  height: min(52rem, calc(100vh - var(--fs-space-8)));
  height: min(52rem, calc(100dvh - var(--fs-space-8)));
  margin: auto;
}

.portal-modal__panel {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--fs-radius-md);
  background: var(--background);
  touch-action: pan-y;
  overscroll-behavior: contain;
}

.portal-modal__component {
  display: grid;
  min-width: 0;
  min-height: 100%;
  grid-template-areas:
    "topbar"
    "stage"
    "rail";
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto auto minmax(0, 1fr);
}

.portal-modal__topbar {
  position: sticky;
  z-index: 4;
  top: 0;
  grid-area: topbar;
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--fs-space-4);
  border-bottom: 1px solid var(--border);
  padding: var(--fs-space-5) var(--fs-space-5) var(--fs-space-4);
  background: color-mix(in oklab, var(--background) 96%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.portal-modal__topbar-copy {
  min-width: 0;
}

.portal-modal__topbar h2 {
  margin: 0;
  color: var(--foreground);
  font-size: var(--fs-font-heading-md);
  line-height: var(--fs-line-heading);
  font-weight: var(--fs-weight-semibold);
  overflow-wrap: anywhere;
}

.portal-modal__summary,
.portal-modal__topbar p,
.portal-modal__description {
  margin: var(--fs-space-2) 0 0;
  color: var(--muted-foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-relaxed);
  overflow-wrap: anywhere;
}

.portal-modal__close {
  display: inline-flex;
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid color-mix(in oklab, var(--foreground) 18%, var(--border));
  border-radius: var(--fs-radius-pill);
  background: var(--background);
  color: var(--foreground);
  cursor: pointer;
}

.portal-modal__close:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.portal-modal__stage {
  grid-area: stage;
  display: grid;
  min-width: 0;
  min-height: 0;
  grid-template-rows: minmax(0, 1fr) auto;
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--muted) 78%, var(--background));
  touch-action: pan-y;
}

.portal-modal__stage-viewport {
  position: relative;
  display: flex;
  width: 100%;
  height: clamp(18rem, 48dvh, 32rem);
  min-width: 0;
  min-height: 0;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: color-mix(in oklab, var(--muted) 78%, var(--background));
}

.portal-modal__stage-media {
  display: flex;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  align-items: center;
  justify-content: center;
}

.portal-modal__stage-media img,
.portal-modal__stage-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.portal-modal__stage-media video {
  background: #000;
}

.portal-modal__stage-media object,
.portal-modal__stage-media iframe,
.portal-modal__pdf {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--background);
}

.portal-modal__stage-status {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  padding: var(--fs-space-6);
  color: var(--muted-foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-relaxed);
  text-align: center;
  pointer-events: none;
}

.portal-modal__placeholder {
  display: grid;
  max-width: 24rem;
  justify-items: center;
  gap: var(--fs-space-4);
  padding: var(--fs-space-6);
  color: var(--muted-foreground);
  text-align: center;
}

.portal-modal__placeholder p {
  margin: 0;
  line-height: var(--fs-line-relaxed);
}

.portal-modal__placeholder strong {
  overflow-wrap: anywhere;
}

.portal-modal__stage-footer {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--fs-space-3);
  border-top: 1px solid var(--border);
  padding: var(--fs-space-3) var(--fs-space-4);
  background: var(--background);
}

.portal-modal__stage-footer[hidden] {
  display: none;
}

.portal-modal__stage-navigation {
  display: grid;
  min-width: min(100%, 15rem);
  flex: 1 1 15rem;
  grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem;
  align-items: center;
  gap: var(--fs-space-3);
}

.portal-modal__stage-copy {
  min-width: 0;
  grid-column: 2;
  text-align: center;
}

.portal-modal__stage-download {
  display: flex;
  flex: 0 1 auto;
  align-items: center;
  justify-content: flex-end;
}

.portal-modal__stage-download:empty {
  display: none;
}

.portal-modal__stage-download-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--fs-radius-pill);
  padding-inline: var(--fs-space-4);
  color: var(--foreground);
  font-size: var(--fs-font-xs);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  text-align: center;
  text-decoration: none;
}

.portal-modal__stage-download-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.portal-modal__nav {
  display: inline-flex;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 1px solid color-mix(in oklab, var(--foreground) 18%, transparent);
  border-radius: var(--fs-radius-pill);
  background: var(--background);
  color: var(--foreground);
  cursor: pointer;
}

.portal-modal__nav:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.portal-modal__nav[hidden] {
  display: none;
}

.portal-modal__nav:disabled {
  cursor: default;
  opacity: 0.35;
}

.portal-modal__nav--previous {
  grid-column: 1;
}

.portal-modal__nav--next {
  grid-column: 3;
}

.portal-modal__stage-counter {
  display: block;
  color: var(--muted-foreground);
  font-size: var(--fs-font-xs);
  line-height: var(--fs-line-snug);
}

.portal-modal__stage-label {
  display: block;
  margin-top: var(--fs-space-1);
  overflow: hidden;
  color: var(--foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-snug);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.portal-modal__rail {
  grid-area: rail;
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  gap: var(--fs-space-6);
  padding: var(--fs-space-5);
}

.portal-modal__rail-content {
  display: flex;
  min-width: 0;
  flex: 1 0 auto;
  flex-direction: column;
  gap: var(--fs-space-6);
}

.portal-modal__section {
  display: grid;
  min-width: 0;
  gap: var(--fs-space-3);
}

.portal-modal__section + .portal-modal__section {
  border-top: 1px solid var(--border);
  padding-top: var(--fs-space-5);
}

.portal-modal__section-heading {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--fs-space-3);
}

.portal-modal__section h3 {
  margin: 0;
  color: var(--foreground);
  font-size: var(--fs-font-md);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
}

.portal-modal__section p {
  margin: 0;
  line-height: var(--fs-line-relaxed);
  overflow-wrap: anywhere;
}

.portal-modal__feedback {
  margin: 0;
  color: var(--muted-foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-relaxed);
  overflow-wrap: anywhere;
}

.portal-modal__feedback:empty {
  display: none;
}

.portal-modal__feedback[data-state="success"] {
  color: var(--success);
}

.portal-modal__feedback[data-state="error"] {
  color: var(--error);
}

.portal-modal__meta {
  display: grid;
  gap: 0;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--fs-radius-md);
}

.portal-modal__meta > div {
  display: grid;
  grid-template-columns: minmax(7rem, 0.35fr) minmax(0, 1fr);
  gap: var(--fs-space-4);
  border-bottom: 1px solid var(--border);
  padding: var(--fs-space-3) var(--fs-space-4);
}

.portal-modal__meta > div:last-child {
  border-bottom: 0;
}

.portal-modal__meta dt,
.portal-modal__meta dd {
  margin: 0;
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-snug);
}

.portal-modal__meta dt {
  color: var(--muted-foreground);
  font-weight: var(--fs-weight-semibold);
}

.portal-modal__meta dd {
  color: var(--foreground);
  overflow-wrap: anywhere;
}

.portal-modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--fs-space-2);
}

.portal-modal__action {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--fs-radius-pill);
  padding: 0 var(--fs-space-5);
  color: var(--foreground);
  font-size: var(--fs-font-sm);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.portal-modal__action:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.portal-modal__action:disabled,
.portal-modal__action[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.5;
}

.portal-modal__action--primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-foreground);
}

.portal-modal__action--primary:hover {
  border-color: var(--accent);
  color: var(--accent-foreground);
  opacity: 0.88;
}

.portal-modal__section-action {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--fs-radius-pill);
  padding-inline: var(--fs-space-4);
  color: var(--foreground);
  font-size: var(--fs-font-xs);
  line-height: var(--fs-line-snug);
  font-weight: var(--fs-weight-semibold);
  cursor: pointer;
  white-space: nowrap;
}

.portal-modal__section-action:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.portal-modal__section-action:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.portal-modal__download-list {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--fs-radius-md);
  padding: 0;
}

.portal-modal__download-list summary {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--fs-space-3);
  padding: var(--fs-space-3) var(--fs-space-4);
  color: var(--foreground);
  font-size: var(--fs-font-sm);
  font-weight: var(--fs-weight-semibold);
  cursor: pointer;
  list-style: none;
}

.portal-modal__download-list summary::-webkit-details-marker {
  display: none;
}

.portal-modal__download-list summary::after {
  content: "+";
  flex: 0 0 auto;
  color: var(--muted-foreground);
}

.portal-modal__download-list[open] summary::after {
  content: "−";
}

.portal-modal__download-list ol {
  display: grid;
  margin: 0;
  border-top: 1px solid var(--border);
  padding: 0;
  list-style: none;
}

.portal-modal__download-list li {
  display: flex;
  min-width: 0;
  min-height: 3rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--fs-space-3);
  padding: var(--fs-space-3) var(--fs-space-4);
}

.portal-modal__download-list li + li {
  border-top: 1px solid var(--border);
}

.portal-modal__download-list li > span:first-child {
  min-width: 0;
  color: var(--foreground);
  font-size: var(--fs-font-sm);
  overflow-wrap: anywhere;
}

.portal-modal__download-list li > span:last-child:not(:first-child) {
  flex: 0 0 auto;
  color: var(--muted-foreground);
  font-size: var(--fs-font-xs);
}

.portal-modal__download-list a {
  display: inline-flex;
  min-height: 2.25rem;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--fs-radius-pill);
  padding-inline: var(--fs-space-3);
  color: var(--foreground);
  font-size: var(--fs-font-xs);
  font-weight: var(--fs-weight-semibold);
  text-decoration: none;
}

.portal-modal__download-list a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.portal-modal__file-details {
  border-top: 1px solid var(--border);
  padding-top: var(--fs-space-4);
}

.portal-modal__file-details summary {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--fs-space-3);
  color: var(--foreground);
  font-weight: var(--fs-weight-semibold);
  cursor: pointer;
  list-style: none;
}

.portal-modal__file-details summary::-webkit-details-marker {
  display: none;
}

.portal-modal__file-details summary::after {
  content: "+";
  color: var(--muted-foreground);
}

.portal-modal__file-details[open] summary::after {
  content: "−";
}

.portal-modal__file-details .portal-modal__meta {
  margin-top: var(--fs-space-3);
}

.portal-modal__preserved-text {
  margin: 0;
  line-height: var(--fs-line-relaxed);
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

@media (min-width: 64rem) {
  .portal-modal__panel {
    overflow: hidden;
  }

  .portal-modal__component {
    height: 100%;
    min-height: 0;
    grid-template-areas:
      "stage topbar"
      "stage rail";
    grid-template-columns: minmax(0, 1.45fr) minmax(22rem, 0.75fr);
    grid-template-rows: auto minmax(0, 1fr);
  }

  .portal-modal__topbar {
    position: relative;
    align-self: start;
    padding: var(--fs-space-6) var(--fs-space-6) var(--fs-space-5);
  }

  .portal-modal__stage {
    height: 100%;
    border-right: 1px solid var(--border);
    border-bottom: 0;
  }

  .portal-modal__stage-viewport {
    height: auto;
    min-height: 0;
  }

  .portal-modal__rail {
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    padding: var(--fs-space-6);
  }}

@media (max-width: 47.999rem) {
  .portal-modal {
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    margin: 0;
  }

  .portal-modal__panel {
    border: 0;
    border-radius: 0;
  }

  .portal-modal--fallback {
    padding: 0;
  }

  .portal-modal--fallback .portal-modal__panel {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
  }

  .portal-modal__topbar {
    padding-top: max(var(--fs-space-4), env(safe-area-inset-top));
    padding-right: max(var(--fs-space-4), env(safe-area-inset-right));
    padding-left: max(var(--fs-space-4), env(safe-area-inset-left));
  }

  .portal-modal__stage-viewport {
    height: clamp(15rem, 44dvh, 24rem);
    padding-right: env(safe-area-inset-right);
    padding-left: env(safe-area-inset-left);
  }

  .portal-modal__stage-footer {
    padding-right: max(var(--fs-space-4), env(safe-area-inset-right));
    padding-left: max(var(--fs-space-4), env(safe-area-inset-left));
  }

  .portal-modal__stage-label {
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .portal-modal__rail {
    padding-right: max(var(--fs-space-5), env(safe-area-inset-right));
    padding-bottom: max(var(--fs-space-8), env(safe-area-inset-bottom));
    padding-left: max(var(--fs-space-5), env(safe-area-inset-left));
  }

  .portal-modal__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .portal-modal__action {
    width: 100%;
    min-height: 3rem;
    white-space: normal;
    text-align: center;
  }

  .portal-modal__meta > div {
    grid-template-columns: 1fr;
    gap: var(--fs-space-1);
  }

  .portal-modal__section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .portal-modal__section-action {
    width: 100%;
    white-space: normal;
  }

  .portal-modal__stage-navigation {
    min-width: 100%;
  }

  .portal-modal__stage-download {
    width: 100%;
    justify-content: stretch;
  }

  .portal-modal__stage-download-link {
    width: 100%;
  }}

.portal-modal__nav[hidden],
.portal-modal__stage-status[hidden],
.portal-modal__stage-footer[hidden],
.portal-modal__feedback[hidden] {
  display: none !important;
}

@media (prefers-reduced-motion: reduce) {
  .portal-modal__close,
  .portal-modal__nav,
  .portal-modal__action {
    transition: none;
  }

  .portal-modal__panel,
  .portal-modal__rail {
    scroll-behavior: auto;
  }}

/* Social publishing: caption first, then one dominant media action. */
.portal-modal__social-actions { display: grid; gap: var(--fs-space-2); }
.portal-modal__step { font-size: var(--fs-font-sm); color: var(--muted-foreground); }
.portal-modal__step:not(:first-child) { margin-top: var(--fs-space-2); }
.portal-modal__split { display: flex; width: 100%; gap: var(--fs-space-2); align-items: center; }
.portal-modal__split > :first-child { flex: 1; border-radius: var(--fs-radius-pill); min-width: 0; }
.portal-modal__split .portal-modal__split-toggle { flex: 0 0 2.75rem; width: 2.75rem; height: 2.75rem; min-height: 2.75rem; padding: 0; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; }
.portal-modal__split-toggle svg { width: 1.25rem; height: 1.25rem; display: block; }
.portal-modal__social-actions > .portal-modal__action { width: 100%; gap: var(--fs-space-2); }
.portal-modal__social-actions > .portal-modal__action svg { width: 1rem; height: 1rem; }
.portal-modal__download-menu { border: 1px solid var(--border); border-radius: var(--fs-radius-sm); padding: var(--fs-space-2); }
.portal-modal__download-menu[hidden] { display: none; }
.portal-modal__download-option { display: flex; flex-direction: column; justify-content: center; min-height: 2.75rem; padding: var(--fs-space-2); color: var(--foreground); overflow-wrap: anywhere; font-size: var(--fs-font-sm); }
.portal-modal__download-option:hover { color: var(--accent); }
.portal-modal__download-filename { font-size: .8em; opacity: .75; }
.portal-modal__split { --portal-action-size: 2.75rem; }
.portal-modal__split > .portal-modal__action { height: var(--portal-action-size); min-height: var(--portal-action-size); }
.portal-modal__split > .portal-modal__split-toggle { flex-basis: var(--portal-action-size); width: var(--portal-action-size); }
@media (max-width: 47.999rem) { .portal-modal__split { --portal-action-size: 3rem; }}

.portal-modal__download-description { display: block; font-size: .8em; line-height: 1.45; font-weight: 400; opacity: .8; margin-top: .125rem; }
.portal-modal__download-group { padding: var(--fs-space-2); font-size: var(--fs-font-sm); border-top: 1px solid var(--border); margin-top: var(--fs-space-2); }