.stream-hero {
  padding-top: 22px;
}

.stream-hero-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  align-items: center;
  gap: clamp(30px, 5vw, 72px);
  overflow: hidden;
  padding: clamp(34px, 5vw, 66px);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-xl);
  background: var(--color-panel-deep);
  color: var(--color-text-on-dark);
  box-shadow: var(--shadow-card);
}

.stream-hero-copy {
  position: relative;
  z-index: 2;
}

.stream-hero h1 {
  max-width: 680px;
  margin-top: 20px;
  color: var(--color-text-on-dark);
}

.stream-lead {
  max-width: 58ch;
  margin-top: 22px;
  color: var(--color-text-dark-muted);
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.85;
}

.stream-hero-actions {
  margin-top: 26px;
}

.stream-fact-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 18px;
  margin-top: 22px;
  list-style: none;
}

.stream-fact-list li {
  color: var(--color-text-dark-muted);
  font-size: 12px;
}

.stream-fact-list .mono {
  margin-right: 5px;
  color: var(--color-accent);
  font-size: 10px;
}

.library-board {
  position: relative;
  z-index: 1;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-border-dark-strong);
  border-radius: var(--radius-lg);
  background: var(--color-panel-deeper);
  box-shadow: var(--shadow-console);
  transform: perspective(1300px) rotateY(-3deg) rotateX(1deg);
}

.library-board-top {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 42px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border-dark);
  background: var(--color-panel-deep);
}

.library-board-top > span {
  width: 9px;
  height: 9px;
  border-radius: var(--radius-pill);
  background: var(--color-border-dark-strong);
}

.library-board-top > span:first-child {
  background: var(--color-error);
}

.library-board-top > span:nth-child(2) {
  background: var(--color-warning);
}

.library-board-top > span:nth-child(3) {
  background: var(--color-success);
}

.library-board-top b {
  margin-left: auto;
  color: var(--color-text-dark-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
}

.library-board-body {
  display: grid;
  gap: 9px;
  padding: clamp(18px, 3vw, 30px);
}

.library-command {
  margin-bottom: 8px;
  color: var(--color-code-dark);
  font-family: var(--font-mono);
  font-size: 12px;
}

.library-command span {
  color: var(--color-warning);
  font-weight: 800;
}

.library-record {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 10px 12px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  background: var(--color-dark-row);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.library-record:hover {
  border-color: transparent;
  background: var(--gradient-accent);
}

.library-record:hover * {
  color: var(--color-cta-ink);
}

.library-key {
  color: var(--color-warning);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
}

.library-record strong {
  overflow-wrap: anywhere;
  color: var(--color-text-on-dark);
  font-size: 13px;
}

.library-record i {
  display: grid;
  width: 21px;
  height: 21px;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
  color: var(--color-cta-ink);
  font-style: normal;
  font-weight: 900;
}

.library-result {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border-dark);
  color: var(--color-text-dark-muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.stream-eyebrow {
  margin-bottom: 8px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.stream-prose {
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.92;
}

.stream-prose > * + * {
  margin-top: 1.25em;
}

.stream-support,
.stream-quality {
  background: var(--color-panel);
}

.stream-table th,
.stream-table td {
  min-width: 148px;
}

.stream-table th:first-child,
.stream-table td:first-child {
  min-width: 132px;
}

.support-state {
  display: inline-flex;
  max-width: 100%;
  padding: 4px 9px;
  overflow: hidden;
  border: 1px solid var(--color-accent-dark);
  border-radius: var(--radius-pill);
  background: var(--color-accent-tint);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.45;
}

.matrix-notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.matrix-note {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-page);
  box-shadow: var(--shadow-chip);
}

.matrix-note h3 {
  margin-top: 14px;
  font-size: 18px;
}

.matrix-note p {
  margin-top: 8px;
  color: var(--color-text-muted);
  line-height: 1.75;
}

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

.ip-compare article {
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.ip-compare h3 {
  margin-top: 14px;
  font-size: 19px;
}

.ip-compare p {
  margin-top: 7px;
  color: var(--color-text-muted);
}

.quality-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.36fr);
  align-items: start;
  gap: 18px;
}

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

.quality-step {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-page);
}

.quality-step > span {
  color: var(--color-warning);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.quality-step h3 {
  margin-top: 12px;
  font-size: 19px;
}

.quality-step p {
  margin-top: 8px;
  color: var(--color-text-muted);
  line-height: 1.78;
}

.quality-checklist {
  position: sticky;
  top: var(--toc-offset);
  padding: 24px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  background: var(--color-panel-deep);
  color: var(--color-text-on-dark);
  box-shadow: var(--shadow-card);
}

.quality-checklist h3 {
  color: var(--color-text-on-dark);
  font-size: 20px;
}

.quality-checklist ul {
  display: grid;
  gap: 12px;
  margin-top: 20px;
  list-style: none;
}

.quality-checklist li {
  position: relative;
  padding-left: 22px;
  color: var(--color-text-dark-muted);
}

.quality-checklist li::before {
  position: absolute;
  top: 0;
  left: 0;
  color: var(--color-success);
  content: '✓';
  font-weight: 900;
}

.error-table td {
  vertical-align: top;
}

.error-sequence {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.error-sequence article {
  min-width: 0;
  padding: 19px;
  border-top: 3px solid var(--color-accent-dark);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-page);
}

.error-sequence .mono {
  color: var(--color-warning);
  font-size: 10px;
  font-weight: 800;
}

.error-sequence h3 {
  margin-top: 10px;
  font-size: 18px;
}

.error-sequence p {
  margin-top: 7px;
  color: var(--color-text-muted);
  line-height: 1.72;
}

.stream-facts-panel {
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-xl);
  background: var(--color-panel-deep);
  color: var(--color-text-on-dark);
  box-shadow: var(--shadow-card);
}

.stream-facts-panel h2 {
  color: var(--color-text-on-dark);
}

.stream-facts-panel > div:first-child > p:last-child {
  max-width: 760px;
  margin-top: 12px;
  color: var(--color-text-dark-muted);
  font-size: 16px;
}

.stream-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-md);
  background: var(--color-border-dark);
}

.stream-facts > div {
  padding: 18px;
  background: var(--color-dark-row);
}

.stream-facts dt {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.stream-facts dd {
  margin-top: 7px;
  color: var(--color-code-dark);
  line-height: 1.75;
}

.stream-end-links {
  margin-top: 28px;
}

@media (max-width: 960px) {
  .stream-hero-card {
    grid-template-columns: 1fr;
  }

  .library-board {
    transform: none;
  }

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

  .quality-checklist {
    position: static;
  }

  .error-sequence {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .stream-hero-card {
    padding: 28px 20px;
    border-radius: var(--radius-lg);
  }

  .matrix-notes,
  .ip-compare,
  .quality-flow,
  .stream-facts {
    grid-template-columns: 1fr;
  }

  .library-record {
    grid-template-columns: 68px minmax(0, 1fr) 22px;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .stream-hero-actions .btn,
  .stream-end-links .btn {
    width: 100%;
  }

  .stream-fact-list {
    display: grid;
  }

  .error-sequence {
    grid-template-columns: 1fr;
  }

  .library-board-body {
    padding: 14px;
  }

  .library-record {
    grid-template-columns: minmax(0, 1fr) 22px;
  }

  .library-key {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .library-board,
  .library-record {
    transform: none;
  }
}