.stream-hero {
  position: relative;
  max-width: 100%;
  overflow-x: clip;
  padding-top: 72px;
  padding-bottom: 72px;
  background: linear-gradient(180deg, var(--color-bg-top), var(--color-bg-bottom));
}

.stream-hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, var(--color-text), transparent);
  content: "";
}

.stream-grid-decor {
  position: absolute;
  top: -18%;
  left: 50%;
  width: 70%;
  max-width: 100%;
  aspect-ratio: 1;
  transform: translateX(-50%);
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(closest-side, var(--color-glow), transparent);
  opacity: .75;
}

.stream-hero-inner {
  position: relative;
  z-index: 1;
}

.stream-hero-copy {
  display: flex;
  max-width: 900px;
  margin-inline: auto;
  align-items: center;
  flex-direction: column;
  text-align: center;
}

.stream-title {
  max-width: 840px;
  margin-top: 20px;
}

.stream-lead {
  max-width: 780px;
  margin: 20px 0 0;
  color: var(--color-muted);
  font-size: 18px;
  line-height: 1.75;
}

.stream-console {
  position: relative;
  margin-top: 48px;
  overflow: hidden;
  border-radius: var(--radius-medium);
  color: var(--color-window-text);
  background: linear-gradient(180deg, var(--color-window-top), var(--color-window));
  box-shadow: var(--shadow-window), inset 0 0 0 1px var(--color-window-line), inset 0 1px 0 var(--color-window-highlight);
}

.stream-console-bar {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-inline: 18px;
  border-bottom: 1px solid var(--color-window-line);
  color: var(--color-window-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.stream-console-title,
.stream-console-state {
  display: flex;
  align-items: center;
  gap: 9px;
}

.stream-console-title {
  color: var(--color-window-text);
}

.stream-console-state .status-dot {
  width: 7px;
  height: 7px;
}

.stream-console-body {
  display: grid;
  min-height: 280px;
  grid-template-columns: minmax(180px, .8fr) minmax(260px, 1.15fr) minmax(240px, 1fr);
}

.stream-route-column,
.stream-check-column,
.stream-result-column {
  min-width: 0;
  padding: 22px;
}

.stream-route-column,
.stream-check-column {
  border-right: 1px solid var(--color-window-line);
}

.stream-console-label {
  display: block;
  margin-bottom: 14px;
  color: var(--color-window-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.stream-route {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--radius-small);
  color: var(--color-window-muted);
}

.stream-route + .stream-route {
  margin-top: 5px;
}

.stream-route.is-selected {
  color: var(--color-window-text);
  background: var(--color-window-row);
  box-shadow: inset 2px 0 0 var(--color-accent);
}

.stream-route span {
  flex-shrink: 0;
  font-weight: 700;
}

.stream-route small {
  overflow: hidden;
  color: var(--color-window-muted);
  font-size: 10px;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stream-check-row {
  display: flex;
  min-height: 58px;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--color-window-line);
}

.stream-check-row svg {
  color: var(--color-accent);
}

.stream-check-row strong,
.stream-check-row span {
  display: block;
}

.stream-check-row strong {
  color: var(--color-window-text);
  font-size: 13px;
}

.stream-check-row span {
  margin-top: 2px;
  color: var(--color-window-muted);
  font-size: 11px;
}

.stream-result-column p {
  color: var(--color-window-text);
  font-size: 15px;
  line-height: 1.75;
}

.stream-result-note {
  margin-top: 22px;
  padding: 15px;
  border: 1px solid var(--color-window-line);
  border-radius: var(--radius-small);
  color: var(--color-window-muted);
  background: var(--color-window-card);
  font-size: 12px;
}

.stream-article {
  background: var(--color-bg);
}

.stream-reading {
  max-width: 840px;
}

.section-sunk {
  background: var(--color-panel-sunk);
}

.section-final {
  padding-top: 64px;
  padding-bottom: 96px;
}

.section-index {
  display: block;
  margin-bottom: 12px;
  color: var(--color-faint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
}

.stream-prose {
  color: var(--color-muted);
  font-size: 17px;
}

.stream-prose p {
  margin-bottom: 20px;
}

.stream-prose .callout {
  margin-top: 30px;
}

.stream-section-head {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(300px, .7fr);
  align-items: end;
  gap: 56px;
  margin-bottom: 34px;
}

.stream-section-head h2 {
  margin-bottom: 0;
}

.stream-section-head > p {
  margin: 0;
  color: var(--color-muted);
}

.media-support-table th,
.media-support-table td {
  word-break: keep-all;
}

.media-support-table th {
  white-space: nowrap;
}

.media-support-table td:first-child {
  color: var(--color-text);
  font-weight: 700;
}

.support-mark {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 7px;
  color: var(--color-success);
  font-weight: 700;
}

.support-mark::before {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.support-mark.is-conditional {
  color: var(--color-warning);
}

.table-note {
  margin: 18px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.comparison-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--color-highlight);
}

.comparison-strip > div {
  min-width: 0;
  padding: 22px;
}

.comparison-strip > div + div {
  border-left: 1px solid var(--color-border);
}

.comparison-label,
.usage-label {
  display: block;
  margin-bottom: 11px;
  color: var(--color-faint);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
}

.comparison-strip strong {
  display: block;
  color: var(--color-text);
  font-size: 15px;
}

.comparison-strip p {
  margin: 8px 0 0;
  font-size: 13px;
}

.quality-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: 18px;
}

.quality-main {
  padding: 32px;
}

.quality-main h3 {
  font-size: 26px;
}

.quality-main p {
  color: var(--color-muted);
}

.quality-checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.quality-item {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--color-highlight);
}

.quality-icon {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: var(--radius-small);
  color: var(--color-text);
  background: var(--color-accent);
}

.quality-item h3 {
  margin-top: 16px;
  font-size: 17px;
}

.quality-item p {
  margin: 0;
  color: var(--color-muted);
  font-size: 13px;
}

.quality-callout {
  margin-top: 20px;
}

.error-list {
  border-top: 1px solid var(--color-border);
}

.error-row {
  display: grid;
  grid-template-columns: minmax(220px, .7fr) minmax(0, 1.3fr);
  gap: 42px;
  padding-top: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.error-heading {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.error-heading h3 {
  margin: 3px 0 0;
  font-size: 19px;
}

.error-symbol {
  display: grid;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  background: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.error-row p {
  margin: 0;
  color: var(--color-muted);
}

.stream-steps {
  margin: 34px 0 0;
}

.stream-steps > li {
  padding-bottom: 28px;
}

.stream-steps > li + li {
  padding-top: 4px;
  border-top: 1px solid var(--color-border);
}

.stream-steps h3 {
  font-size: 20px;
}

.stream-steps p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.usage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.usage-card {
  min-width: 0;
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  box-shadow: var(--shadow-soft), inset 0 1px 0 var(--color-highlight);
}

.usage-card h3 {
  font-size: 20px;
}

.usage-card p {
  margin: 0;
  color: var(--color-muted);
}

.next-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, .8fr);
  align-items: center;
  gap: 56px;
  padding: 38px;
  border-radius: var(--radius-medium);
  color: var(--color-window-text);
  background: linear-gradient(145deg, var(--color-window-top), var(--color-window));
  box-shadow: var(--shadow-window);
}

.next-links h2 {
  margin-bottom: 10px;
  color: var(--color-window-text);
}

.next-links p {
  max-width: 600px;
  margin: 0;
  color: var(--color-window-muted);
}

.next-links .section-index {
  color: var(--color-window-muted);
}

.next-link-list {
  display: grid;
  gap: 10px;
}

.next-link {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 16px;
  border: 1px solid var(--color-window-line-strong);
  border-radius: var(--radius-small);
  background: var(--color-window-row);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.next-link:hover {
  transform: translateX(3px);
  border-color: var(--color-accent);
}

.next-link small,
.next-link strong {
  display: block;
}

.next-link small {
  color: var(--color-window-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.next-link strong {
  margin-top: 2px;
  color: var(--color-window-text);
}

.next-link > span:last-child {
  color: var(--color-accent);
  font-size: 22px;
}

@media (max-width: 900px) {
  .stream-console-body {
    grid-template-columns: minmax(170px, .8fr) minmax(250px, 1.2fr);
  }

  .stream-result-column {
    grid-column: 1 / -1;
    border-top: 1px solid var(--color-window-line);
  }

  .stream-section-head,
  .quality-layout,
  .next-links {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .comparison-strip {
    grid-template-columns: 1fr;
  }

  .comparison-strip > div + div {
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }

  .usage-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .stream-hero {
    padding-top: 52px;
    padding-bottom: 56px;
  }

  .stream-lead {
    font-size: 16px;
  }

  .stream-console {
    margin-top: 36px;
  }

  .stream-console-bar {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .stream-console-body {
    grid-template-columns: 1fr;
  }

  .stream-route-column,
  .stream-check-column {
    border-right: 0;
    border-bottom: 1px solid var(--color-window-line);
  }

  .stream-result-column {
    grid-column: auto;
    border-top: 0;
  }

  .quality-checklist {
    grid-template-columns: 1fr;
  }

  .error-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .next-links {
    padding: 28px;
  }
}

@media (max-width: 640px) {
  .stream-hero {
    padding-top: 42px;
    padding-bottom: 48px;
  }

  .stream-grid-decor {
    display: none;
  }

  .stream-console-bar {
    padding-inline: 14px;
  }

  .stream-route-column,
  .stream-check-column,
  .stream-result-column {
    padding: 18px 14px;
  }

  .stream-route {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }

  .stream-route small {
    max-width: 100%;
    text-align: left;
  }

  .stream-section-head {
    gap: 14px;
  }

  .quality-main,
  .usage-card {
    padding: 22px;
  }

  .comparison-strip > div {
    padding: 18px;
  }

  .next-links {
    padding: 22px;
  }

  .next-link {
    min-width: 0;
  }
}