.stream-hero {
  position: relative;
  min-height: 620px;
  overflow-x: clip;
  background:
    linear-gradient(180deg, var(--color-bg-deep), var(--color-bg)),
    var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.stream-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.7;
  background-image:
    linear-gradient(var(--color-grid-line) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-grid-line) 1px, var(--color-transparent) 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, var(--color-text), var(--color-transparent));
  pointer-events: none;
}

.stream-hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 520px;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: clamp(42px, 7vw, 96px);
  align-items: center;
}

.stream-hero-copy {
  min-width: 0;
}

.stream-hero-copy h1 {
  max-width: 760px;
  margin-top: 22px;
}

.stream-hero-copy .lead {
  max-width: 680px;
}

.stream-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 28px;
}

.stream-signup-note {
  max-width: 680px;
  margin-top: 20px;
  margin-bottom: 0;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.8;
}

.stream-view {
  position: relative;
  min-width: 0;
  height: 360px;
}

.stream-depth {
  position: absolute;
  inset: 26px;
  display: grid;
  overflow: hidden;
  align-content: center;
  justify-items: center;
  background:
    linear-gradient(135deg, var(--color-scene-shade), var(--color-scene-clear)),
    radial-gradient(circle at 18% 45%, var(--color-aurora-blue), var(--color-transparent) 38%),
    radial-gradient(circle at 52% 48%, var(--color-aurora-green), var(--color-transparent) 36%),
    radial-gradient(circle at 86% 54%, var(--color-aurora-orange), var(--color-transparent) 38%),
    var(--color-panel);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
}

.stream-depth::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    repeating-linear-gradient(90deg, var(--color-transparent) 0 84px, var(--color-grid-line) 84px 85px),
    linear-gradient(180deg, var(--color-scene-shade), var(--color-scene-clear), var(--color-scene-shade));
  pointer-events: none;
}

.stream-depth > p {
  position: absolute;
  right: 18px;
  bottom: 13px;
  margin: 0;
  color: var(--color-white-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.stream-corner {
  position: absolute;
  z-index: 3;
  width: 76px;
  height: 76px;
  border-color: var(--color-text);
  border-style: solid;
  filter: drop-shadow(0 12px 18px var(--color-dark-shadow));
}

.stream-corner-tl {
  top: 0;
  left: 0;
  border-width: 12px 0 0 12px;
  border-radius: var(--radius-lg) 0 0 0;
}

.stream-corner-tr {
  top: 0;
  right: 0;
  border-width: 12px 12px 0 0;
  border-radius: 0 var(--radius-lg) 0 0;
}

.stream-corner-bl {
  bottom: 0;
  left: 0;
  border-width: 0 0 12px 12px;
  border-radius: 0 0 0 var(--radius-lg);
}

.stream-corner-br {
  right: 0;
  bottom: 0;
  border-width: 0 12px 12px 0;
  border-radius: 0 0 var(--radius-lg) 0;
}

.stream-orbit {
  position: relative;
  z-index: 2;
  display: flex;
  width: 130%;
  gap: 10px;
  animation: stream-drift var(--duration-slow) var(--ease-drift) infinite alternate;
}

.stream-orbit span {
  display: inline-flex;
  min-height: 36px;
  padding: 0 13px;
  flex: 0 0 auto;
  align-items: center;
  color: var(--color-text);
  background: var(--color-panel-glass);
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  box-shadow: var(--shadow-soft);
}

.stream-signal {
  position: relative;
  z-index: 2;
  width: 68%;
  height: 58px;
  margin-top: 28px;
}

.stream-signal-line {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-transparent), var(--color-accent), var(--color-transparent));
}

.stream-signal-node {
  position: absolute;
  top: calc(50% - 5px);
  left: 50%;
  width: 10px;
  height: 10px;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 0 6px var(--color-accent-glass);
  animation: stream-pulse var(--duration-pulse) ease-in-out infinite;
}

.stream-toc-wrap {
  position: relative;
  z-index: 8;
  margin-top: 30px;
}

.stream-section-grid {
  display: grid;
  grid-template-columns: minmax(150px, 0.25fr) minmax(0, 1fr);
  gap: clamp(34px, 7vw, 96px);
}

.stream-index {
  align-self: start;
  padding-top: 7px;
}

.stream-index p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 14px;
}

.stream-content {
  min-width: 0;
  max-width: 980px;
}

.stream-content > p {
  max-width: 850px;
}

.stream-principles {
  display: grid;
  margin-top: 42px;
  border-top: 1px solid var(--color-border);
}

.stream-principles > div {
  display: grid;
  grid-template-columns: minmax(100px, 0.25fr) minmax(180px, 0.45fr) minmax(0, 1fr);
  gap: 24px;
  padding: 28px 0;
  align-items: start;
  border-bottom: 1px solid var(--color-border);
}

.stream-principles .mono-label {
  margin: 7px 0 0;
}

.stream-principles h3 {
  margin: 0;
  font-size: 21px;
}

.stream-principles p {
  margin: 0;
}

.stream-support-table,
.error-table {
  min-width: 880px;
}

.stream-support-table td:first-child,
.error-table td:first-child {
  color: var(--color-text);
}

.support-conditional {
  display: inline-flex;
  max-width: 100%;
  min-height: 26px;
  padding: 0 9px;
  overflow: hidden;
  align-items: center;
  color: var(--color-accent-soft);
  background: var(--color-accent-glass);
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.table-note {
  max-width: 900px;
  margin: 22px 0 0;
  font-size: 14px;
}

.ip-comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 34px;
}

.ip-profile {
  min-width: 0;
  padding: clamp(24px, 4vw, 36px);
  background:
    linear-gradient(145deg, var(--color-white-faint), var(--color-transparent)),
    var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.ip-profile h3 {
  margin-top: 24px;
}

.ip-profile p:last-child {
  margin-bottom: 0;
}

.quality-ledger {
  margin: 38px 0;
  border-top: 1px solid var(--color-border);
}

.quality-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.3fr) minmax(0, 1fr);
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

.quality-row strong {
  font-family: var(--font-mono);
  font-size: 13px;
}

.quality-row p {
  margin: 0;
}

.error-table th:first-child {
  width: 24%;
}

.error-table th:nth-child(2) {
  width: 34%;
}

.route-flow {
  display: grid;
  margin-bottom: 52px;
  border-top: 1px solid var(--color-border);
}

.route-flow article {
  position: relative;
  display: grid;
  grid-template-columns: minmax(130px, 0.25fr) minmax(200px, 0.4fr) minmax(0, 1fr);
  gap: 26px;
  padding: 30px 0;
  align-items: start;
  border-bottom: 1px solid var(--color-border);
}

.route-flow article > span {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.route-flow h3,
.route-flow p {
  margin: 0;
}

.stream-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 34px;
  margin-top: 56px;
  padding: clamp(28px, 5vw, 48px);
  align-items: center;
  background:
    linear-gradient(115deg, var(--color-accent-glass), var(--color-transparent)),
    var(--color-panel);
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
}

.stream-links h2 {
  margin-bottom: 10px;
  font-size: clamp(27px, 3vw, 38px);
}

.stream-links p {
  max-width: 680px;
  margin-bottom: 0;
}

.stream-link-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

@keyframes stream-drift {
  from {
    transform: translateX(-5%);
  }

  to {
    transform: translateX(5%);
  }
}

@keyframes stream-pulse {
  0%,
  100% {
    opacity: 0.45;
    transform: scale(0.82);
  }

  50% {
    opacity: 1;
    transform: scale(1);
  }
}

@media (max-width: 980px) {
  .stream-hero-layout {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .stream-view {
    width: min(100%, 720px);
    height: 320px;
  }

  .stream-section-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .stream-index {
    padding-top: 0;
  }

  .stream-index p {
    display: none;
  }

  .stream-principles > div,
  .route-flow article {
    grid-template-columns: minmax(110px, 0.25fr) minmax(0, 1fr);
  }

  .stream-principles p,
  .route-flow p {
    grid-column: 2;
  }

  .stream-links {
    grid-template-columns: minmax(0, 1fr);
  }

  .stream-link-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 700px) {
  .stream-hero {
    min-height: auto;
  }

  .stream-hero-layout {
    min-height: 0;
    gap: 42px;
  }

  .stream-view {
    height: 250px;
  }

  .stream-depth {
    inset: 19px;
  }

  .stream-depth > p {
    display: none;
  }

  .stream-corner {
    width: 54px;
    height: 54px;
  }

  .stream-corner-tl {
    border-top-width: 9px;
    border-left-width: 9px;
  }

  .stream-corner-tr {
    border-top-width: 9px;
    border-right-width: 9px;
  }

  .stream-corner-bl {
    border-bottom-width: 9px;
    border-left-width: 9px;
  }

  .stream-corner-br {
    border-right-width: 9px;
    border-bottom-width: 9px;
  }

  .ip-comparison {
    grid-template-columns: minmax(0, 1fr);
  }

  .stream-principles > div,
  .quality-row,
  .route-flow article {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .stream-principles p,
  .route-flow p {
    grid-column: auto;
  }

  .stream-principles .mono-label {
    margin-top: 0;
  }

  .stream-links {
    gap: 24px;
  }

  .stream-link-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .stream-link-actions .button {
    width: 100%;
  }
}

@media (max-width: 420px) {
  .stream-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .stream-actions .button {
    width: 100%;
  }

  .stream-view {
    height: 220px;
  }

  .stream-orbit {
    width: 160%;
  }

  .stream-orbit span {
    padding-inline: 10px;
    font-size: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stream-orbit,
  .stream-signal-node {
    animation: none;
  }
}