:root {
  --uc-ink: #061b30;
  --uc-ink-soft: #0b2742;
  --uc-panel: #102d4a;
  --uc-panel-soft: #173956;
  --uc-line: rgba(133, 227, 216, 0.24);
  --uc-aqua: #7ee3d8;
  --uc-aqua-strong: #33c8bb;
  --uc-text: #f4f8fc;
  --uc-muted: #b9c9d8;
}

html:has(body.usecase-detail-page) {
  height: 100%;
  overflow: hidden;
}

body.usecase-detail-page {
  min-height: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: #eaf1f7;
}

body.usecase-detail-page .site-header {
  flex: 0 0 auto;
}

body.usecase-detail-page > main {
  flex: 1 1 0;
  min-height: 0;
  overflow: hidden;
}

body.usecase-detail-page .site-footer {
  display: none !important;
}

.usecase-detail-source-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.usecase-detail-source-actions a {
  color: #10233c;
  font-size: 0.88rem;
  font-weight: 750;
  text-decoration: none;
}

.usecase-detail {
  height: 100%;
  padding: 14px;
}

.usecase-detail__shell {
  width: min(1600px, 100%);
  height: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(430px, 0.94fr);
  overflow: hidden;
  background: var(--uc-ink);
  border: 1px solid rgba(107, 207, 198, 0.22);
  border-radius: 8px;
  box-shadow: 0 22px 54px rgba(7, 28, 48, 0.18);
}

.usecase-detail__media {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: #020d19;
}

.usecase-detail__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(3, 15, 27, 0.02) 55%, rgba(3, 15, 27, 0.42));
}

.usecase-detail__video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.usecase-detail__back {
  position: absolute;
  z-index: 2;
  top: 18px;
  left: 18px;
  min-height: 40px;
  padding: 9px 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 6px;
  background: rgba(4, 22, 38, 0.82);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 760;
  text-decoration: none;
  backdrop-filter: blur(12px);
}

.usecase-detail__content {
  min-width: 0;
  min-height: 0;
  padding: clamp(18px, 1.8vw, 28px);
  display: grid;
  grid-template-rows: auto auto auto minmax(0, 1fr) auto;
  gap: clamp(8px, 1vh, 12px);
  overflow: hidden;
  color: var(--uc-text);
  background:
    linear-gradient(180deg, rgba(17, 48, 78, 0.6), rgba(6, 27, 48, 0.2)),
    var(--uc-ink);
}

.usecase-detail__eyebrow {
  color: var(--uc-aqua);
  font-size: 0.76rem;
  font-weight: 820;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.usecase-detail__title {
  max-width: 14ch;
  margin: 0;
  color: var(--uc-text);
  font-size: 3.35rem;
  line-height: 0.96;
  letter-spacing: 0;
}

.usecase-detail__summary {
  max-width: 64ch;
  margin: 0;
  color: var(--uc-muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.usecase-detail__tabs {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.usecase-detail__tab {
  min-height: 36px;
  border: 1px solid var(--uc-line);
  border-radius: 5px;
  background: transparent;
  color: var(--uc-muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 760;
  cursor: pointer;
}

.usecase-detail__tab[aria-selected="true"] {
  border-color: var(--uc-aqua-strong);
  background: rgba(51, 200, 187, 0.14);
  color: #fff;
}

.usecase-detail__evidence {
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.usecase-detail__panel {
  min-width: 0;
  min-height: 0;
  padding: clamp(10px, 1vw, 14px);
  overflow: hidden;
  border: 1px solid var(--uc-line);
  border-radius: 7px;
  background: rgba(24, 57, 86, 0.72);
}

.usecase-detail__panel h2 {
  margin: 0 0 6px;
  color: #fff;
  font-size: 0.86rem;
  line-height: 1.2;
}

.usecase-detail__panel ul {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: clamp(4px, 0.55vh, 6px);
}

.usecase-detail__panel li {
  color: var(--uc-muted);
  font-size: 0.72rem;
  line-height: 1.3;
}

.usecase-detail__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.usecase-detail__chips {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.usecase-detail__chip {
  padding: 5px 8px;
  border: 1px solid var(--uc-line);
  border-radius: 999px;
  color: var(--uc-aqua);
  font-size: 0.68rem;
  font-weight: 760;
  white-space: nowrap;
}

.usecase-detail__actions {
  flex: 0 0 auto;
  display: flex;
  gap: 8px;
}

.usecase-detail__actions .btn {
  min-height: 36px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.78rem;
  white-space: nowrap;
}

@media (min-width: 1101px) and (max-width: 1400px) {
  .usecase-detail__title {
    max-width: none;
    font-size: 3rem;
  }

  .usecase-detail__panel li {
    font-size: 0.68rem;
    line-height: 1.24;
  }
}

@media (max-width: 1100px) {
  .usecase-detail {
    padding: 8px;
  }

  .usecase-detail__shell {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(180px, 34%) minmax(0, 66%);
  }

  .usecase-detail__media {
    grid-row: 1;
  }

  .usecase-detail__content {
    padding: 10px 14px;
    grid-template-rows: auto auto auto auto minmax(0, 1fr) auto;
    gap: 5px;
  }

  .usecase-detail__title {
    max-width: none;
    font-size: 2.1rem;
    line-height: 1;
  }

  .usecase-detail__summary {
    font-size: 0.75rem;
    line-height: 1.3;
  }

  .usecase-detail__tabs {
    display: grid;
  }

  .usecase-detail__evidence {
    display: block;
  }

  .usecase-detail__panel {
    height: 100%;
    padding: 9px 12px;
  }

  .usecase-detail__panel[hidden] {
    display: none;
  }

  .usecase-detail__panel li {
    font-size: 0.68rem;
    line-height: 1.24;
  }
}

@media (max-width: 700px) {
  .usecase-detail {
    padding: 0;
  }

  .usecase-detail__shell {
    border: 0;
    border-radius: 0;
    grid-template-rows: minmax(170px, 31%) minmax(0, 69%);
  }

  .usecase-detail__back {
    top: 10px;
    left: 10px;
    min-height: 34px;
    padding: 7px 10px;
    font-size: 0.72rem;
  }

  .usecase-detail__content {
    padding: 11px 13px;
    gap: 6px;
  }

  .usecase-detail__eyebrow {
    font-size: 0.64rem;
  }

  .usecase-detail__title {
    font-size: 1.85rem;
  }

  .usecase-detail__summary {
    font-size: 0.75rem;
    line-height: 1.34;
  }

  .usecase-detail__tab {
    min-height: 32px;
    font-size: 0.7rem;
  }

  .usecase-detail__panel {
    padding: 9px 11px;
  }

  .usecase-detail__panel h2 {
    margin-bottom: 5px;
    font-size: 0.78rem;
  }

  .usecase-detail__panel ul {
    gap: 4px;
  }

  .usecase-detail__panel li {
    font-size: 0.69rem;
    line-height: 1.3;
  }

  .usecase-detail__footer {
    align-items: flex-end;
    gap: 8px;
  }

  .usecase-detail__chips {
    display: none;
  }

  .usecase-detail__chip {
    padding: 3px 6px;
    font-size: 0.58rem;
  }

  .usecase-detail__actions {
    display: grid;
    gap: 5px;
  }

  .usecase-detail__actions .btn {
    min-height: 32px;
    padding: 6px 9px;
    font-size: 0.66rem;
  }

  .usecase-detail-source-actions {
    gap: 6px;
  }

  .usecase-detail-source-actions a {
    font-size: 0.72rem;
  }
}

@media (max-height: 650px) and (min-width: 701px) {
  .usecase-detail__shell {
    grid-template-columns: minmax(0, 1fr) minmax(390px, 0.9fr);
    grid-template-rows: 1fr;
  }

  .usecase-detail__content {
    padding: 14px 18px;
    gap: 6px;
  }

  .usecase-detail__title {
    font-size: 2.4rem;
  }

  .usecase-detail__summary {
    font-size: 0.78rem;
    line-height: 1.3;
  }

  .usecase-detail__panel {
    padding: 10px 12px;
  }

  .usecase-detail__panel li {
    font-size: 0.68rem;
    line-height: 1.25;
  }
}

@media (prefers-reduced-motion: reduce) {
  .usecase-detail__video {
    animation: none;
  }
}