.streaming-hero {
  border-bottom: 1px solid var(--color-line);
}

.flag-white {
  fill: var(--color-white);
}

.flag-red {
  fill: var(--color-flag-red);
}

.flag-blue {
  fill: var(--color-flag-blue);
}

.flag-gold {
  fill: var(--color-flag-gold);
}

.flag-ink {
  fill: var(--color-ink);
}

.streaming-basics,
.ip-section,
.error-section,
.streaming-faq {
  background: var(--color-canvas);
}

.support-section,
.quality-section,
.route-section,
.next-links {
  background: var(--color-surface);
}

.definition-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: clamp(34px, 7vw, 96px);
  align-items: center;
}

.definition-main {
  max-width: 760px;
}

.definition-main p {
  color: var(--color-ink-soft);
}

.stream-diagram {
  display: grid;
  gap: 0;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-large);
  background: var(--color-surface);
}

.diagram-node {
  display: grid;
  gap: 4px;
  padding: 18px 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: var(--color-canvas);
}

.diagram-node span {
  color: var(--color-ink-soft);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.diagram-node-current {
  border-color: var(--color-accent);
  background: var(--color-accent-tint);
}

.diagram-node-current span {
  color: var(--color-accent);
}

.diagram-connector {
  width: 1px;
  height: 28px;
  margin-inline: auto;
  background: var(--color-line);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: clamp(46px, 7vw, 84px);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.principle-grid article {
  padding: 32px;
}

.principle-grid article + article {
  border-left: 1px solid var(--color-line);
}

.principle-grid .mono {
  display: block;
  margin-bottom: 16px;
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.principle-grid h3 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 400;
}

.principle-grid p {
  margin-bottom: 0;
  color: var(--color-ink-soft);
  font-size: 14px;
}

.stream-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
  background: var(--color-canvas);
  font-size: 14px;
}

.stream-table th,
.stream-table td {
  padding: 17px 18px;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

.stream-table th {
  background: var(--color-ink);
  color: var(--color-canvas);
  font-weight: 680;
  white-space: nowrap;
}

.stream-table td:first-child {
  color: var(--color-ink);
  font-weight: 720;
  white-space: nowrap;
}

.stream-table tbody tr:nth-child(even) {
  background: var(--color-surface);
}

.stream-table tbody tr:hover {
  background: var(--color-accent-tint);
}

.status-conditional {
  display: inline-flex;
  max-width: 100%;
  overflow: hidden;
  padding: 4px 9px;
  border: 1px solid var(--color-warning);
  border-radius: var(--radius-pill);
  background: var(--color-warning-tint);
  color: var(--color-warning);
  font-size: 12px;
  line-height: 1.4;
  white-space: nowrap;
}

.support-section .callout {
  max-width: 920px;
  margin-top: 28px;
  margin-bottom: 0;
}

.ip-comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.ip-card {
  padding: clamp(28px, 5vw, 52px);
  border-top: 3px solid var(--color-accent);
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
}

.ip-card:nth-child(even) {
  border-top-color: var(--color-success);
}

.ip-card-head {
  margin-bottom: 24px;
}

.ip-card-head .mono {
  display: block;
  margin-bottom: 9px;
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.ip-card:nth-child(even) .ip-card-head .mono {
  color: var(--color-success);
}

.ip-card h3 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 400;
}

.ip-card p {
  color: var(--color-ink-soft);
}

.ip-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 30px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-line);
}

.ip-notes article {
  padding: 28px;
  background: var(--color-surface);
}

.ip-notes h3 {
  font-size: 19px;
}

.ip-notes p {
  margin-bottom: 0;
  color: var(--color-ink-soft);
  font-size: 14px;
}

.quality-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: clamp(38px, 7vw, 90px);
  align-items: center;
  padding: clamp(32px, 6vw, 76px);
  border-radius: var(--radius-panel);
  background: linear-gradient(to top right, var(--color-encode-teal), var(--color-encode-amber));
}

.quality-copy h2,
.quality-copy p,
.quality-kicker {
  color: var(--color-white);
}

.quality-kicker::before {
  background: var(--color-white);
}

.quality-copy p {
  max-width: 45em;
}

.quality-flow {
  display: grid;
  gap: 12px;
}

.quality-stage {
  padding: 22px;
  border: 1px solid var(--color-hair-white);
  border-radius: var(--radius-medium);
  background: var(--color-hair-white);
  color: var(--color-white);
}

.quality-stage .mono {
  display: block;
  margin-bottom: 5px;
  color: var(--color-code-white);
  font-size: 10px;
  letter-spacing: 0.15em;
}

.quality-stage strong {
  display: block;
  font-size: 18px;
}

.quality-stage p {
  margin: 5px 0 0;
  color: var(--color-white);
  font-size: 13px;
}

.quality-checks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 32px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-line);
}

.quality-checks article {
  padding: 28px;
  background: var(--color-canvas);
}

.quality-checks h3 {
  font-size: 19px;
}

.quality-checks p {
  margin-bottom: 0;
  color: var(--color-ink-soft);
  font-size: 14px;
}

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

.error-entry {
  display: grid;
  grid-template-columns: minmax(190px, 0.32fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 82px);
  padding-top: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-line);
}

.error-label {
  align-self: start;
}

.error-label .mono {
  display: block;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.13em;
}

.error-label strong {
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 400;
}

.error-entry p {
  color: var(--color-ink-soft);
}

.error-action {
  margin-bottom: 0;
  font-size: 14px;
}

.error-action strong {
  color: var(--color-ink);
}

.route-workbench {
  display: grid;
  grid-template-columns: minmax(190px, 0.28fr) minmax(0, 1fr);
  gap: clamp(34px, 7vw, 94px);
  align-items: start;
}

.station-rail {
  position: sticky;
  top: var(--toc-offset);
  display: grid;
  border-top: 1px solid var(--color-line);
}

.station-rail a {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 12px;
  min-height: 54px;
  align-items: center;
  padding: 12px 4px;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-ink-soft);
  font-size: 13px;
  text-decoration: none;
}

.station-rail a:hover,
.station-rail a:focus-visible {
  color: var(--color-accent);
}

.station-rail span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.station-panels {
  display: grid;
  gap: 18px;
}

.station-panel {
  scroll-margin-top: var(--toc-offset);
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-canvas);
}

.station-panel > .mono {
  display: block;
  margin-bottom: 13px;
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.station-panel h3 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 400;
}

.station-panel p {
  max-width: 48em;
  color: var(--color-ink-soft);
}

.station-note {
  margin-top: 24px;
  margin-bottom: 0;
  padding-top: 18px;
  border-top: 1px solid var(--color-line);
  font-family: var(--font-mono);
  font-size: 12px;
}

.station-panel-visual {
  border-color: var(--color-accent);
}

.mini-transcode {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  margin-top: 26px;
  padding: 22px;
  overflow: hidden;
  border-radius: var(--radius-small);
  background: linear-gradient(to right, var(--color-encode-teal), var(--color-encode-amber));
  color: var(--color-white);
  font-size: 13px;
}

.mini-transcode .mono {
  min-width: 0;
  overflow: hidden;
  color: var(--color-code-white);
  font-size: 11px;
  text-align: center;
  white-space: nowrap;
}

.streaming-faq .section-head {
  margin-bottom: 30px;
}

.next-link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.next-link-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(30px, 5vw, 54px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-large);
  background: var(--color-canvas);
}

.next-link-card > .mono {
  margin-bottom: 16px;
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.next-link-card h2 {
  font-size: clamp(32px, 4vw, 46px);
}

.next-link-card p {
  max-width: 36em;
  color: var(--color-ink-soft);
}

.next-link-card .button {
  margin-top: auto;
}

.next-link-card-accent {
  border-color: transparent;
  background: linear-gradient(to top right, var(--color-encode-teal), var(--color-encode-amber));
}

.next-link-card-accent > .mono,
.next-link-card-accent h2,
.next-link-card-accent p {
  color: var(--color-white);
}

.next-link-card-accent .button {
  background: var(--color-white);
  color: var(--color-ink);
}

.next-link-card-accent .button:hover {
  color: var(--color-ink);
}

@media (max-width: 1080px) {
  .definition-layout,
  .quality-panel {
    grid-template-columns: 1fr;
  }

  .stream-diagram {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: center;
  }

  .diagram-connector {
    width: 28px;
    height: 1px;
  }

  .route-workbench {
    grid-template-columns: 1fr;
  }

  .station-rail {
    position: static;
    display: flex;
    max-width: 100%;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 8px;
    border-top: 0;
    -webkit-overflow-scrolling: touch;
  }

  .station-rail a {
    display: flex;
    min-height: 44px;
    flex: 0 0 auto;
    padding: 9px 13px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-small);
    background: var(--color-canvas);
    white-space: nowrap;
  }
}

@media (max-width: 820px) {
  .principle-grid,
  .quality-checks {
    grid-template-columns: 1fr;
  }

  .principle-grid article + article {
    border-top: 1px solid var(--color-line);
    border-left: 0;
  }

  .ip-comparison,
  .ip-notes,
  .next-link-grid {
    grid-template-columns: 1fr;
  }

  .error-entry {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (max-width: 640px) {
  .stream-diagram {
    grid-template-columns: 1fr;
  }

  .diagram-connector {
    width: 1px;
    height: 24px;
  }

  .principle-grid article,
  .quality-checks article,
  .ip-notes article {
    padding: 24px;
  }

  .quality-panel {
    padding: 26px 20px;
    border-radius: var(--radius-large);
  }

  .quality-flow {
    margin-top: 8px;
  }

  .error-entry {
    padding-top: 26px;
    padding-bottom: 26px;
  }

  .station-panel {
    padding: 26px 20px;
  }

  .mini-transcode {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .next-link-card {
    padding: 28px 22px;
  }

  .next-link-card .button {
    width: 100%;
  }
}