.endolum-intro {
  --intro-top: 88px;
  --intro-travel: clamp(1120px, 180svh, 1800px);
  --intro-brand-offset: 0px;
  position: relative;
  background: var(--bg);
  border-bottom: 0;
}

.endolum-intro[data-motion="active"]::after {
  content: '';
  display: block;
  height: calc(var(--intro-travel) * var(--intro-travel-scale, 1));
}

.endolum-intro[data-motion="active"] + #sentinel {
  position: relative;
  z-index: 1;
  margin-top: calc(-1 * min(42svh, 420px));
}

.endolum-intro[data-motion="active"] + #sentinel .sentinel-process {
  padding-top: 40px;
  border-top: 0;
}

.endolum-intro-panel {
  min-height: calc(100svh - 88px);
  padding: clamp(88px, 12svh, 144px) 0;
  display: flex;
  align-items: center;
  overflow: clip;
  background: var(--bg);
}

.endolum-intro[data-motion="active"] .endolum-intro-panel {
  position: sticky;
  top: var(--intro-top);
}

.endolum-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: center;
  gap: clamp(56px, 8vw, 120px);
  flex-shrink: 0;
  will-change: transform, opacity;
}

.endolum-intro-copy {
  min-width: 0;
}

.endolum-intro-eyebrow {
  margin: 0 0 40px;
  font-size: 13px;
  color: var(--dim);
}

.endolum-intro h1 {
  max-width: 13ch;
  margin: 0 0 32px;
  font: 200 clamp(64px, 7vw, 110px)/1.02 var(--sans);
  letter-spacing: -.04em;
  color: var(--text);
}

.endolum-intro-description {
  max-width: 47ch;
  margin: 0 0 32px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--muted);
}

.endolum-intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  align-items: center;
}

.endolum-intro-actions .button {
  justify-content: center;
  font-size: 14px;
}

.endolum-intro-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  border-bottom: 1px solid var(--line-strong);
  font-size: 14px;
  line-height: 1.5;
}

.endolum-intro-link:hover {
  border-color: var(--accent);
}

.endolum-intro-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 36px;
  transform: translate(var(--intro-brand-offset), var(--intro-brand-y, 0px));
}

.endolum-intro-mark {
  display: block;
  width: 280px;
  height: 280px;
  overflow: visible;
}

.endolum-intro-mark .ring {
  stroke-dasharray: 1;
  stroke-dashoffset: 0;
}

.endolum-intro-wordmark {
  position: relative;
  display: flex;
  width: max-content;
  height: 1.2em;
  overflow: visible;
  text-align: center;
  margin: 0;
  font: 200 36px/1.2 var(--sans);
  letter-spacing: -.02em;
  color: var(--text);
}

.intro-name-endolum,
.intro-name-sentinel {
  flex-shrink: 0;
  white-space: pre;
}

.intro-name-sentinel {
  width: 0;
  opacity: 0;
}

@media (max-width: 1100px) {
  .endolum-intro-grid {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 48px;
  }

  .endolum-intro-mark {
    width: 240px;
    height: 240px;
  }

  .endolum-intro h1 {
    font-size: clamp(54px, 7.2vw, 79px);
  }
}

@media (max-width: 760px) {
  .endolum-intro {
    --intro-travel: clamp(840px, 144svh, 1280px);
    --intro-brand-offset: clamp(24px, 8vw, 44px);
  }

  .endolum-intro-panel {
    min-height: calc(100svh - 72px);
    padding: 64px 0 calc(104px + env(safe-area-inset-bottom, 0px));
  }

  .endolum-intro-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }

  .endolum-intro h1 {
    font-size: clamp(43px, 9vw, 68px);
    max-width: 13ch;
    margin-bottom: 26px;
  }

  .endolum-intro-eyebrow {
    margin-bottom: 28px;
    font-size: 12px;
  }

  .endolum-intro-description {
    max-width: 44ch;
    font-size: 16px;
    margin-bottom: 28px;
  }

  .endolum-intro-actions {
    gap: 12px 24px;
  }

  .endolum-intro-brand {
    gap: 22px;
  }

  .endolum-intro-mark {
    width: 184px;
    height: 184px;
  }

  .endolum-intro-wordmark {
    font-size: 28px;
  }
}

@media (max-height: 600px) {
  .endolum-intro {
    --intro-brand-offset: clamp(24px, 8vw, 44px);
  }

  .endolum-intro-panel {
    padding: 48px 0 calc(104px + env(safe-area-inset-bottom, 0px));
  }

  .endolum-intro-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  .endolum-intro h1 {
    max-width: 16ch;
    font-size: clamp(43px, 6vw, 72px);
  }

  .endolum-intro-brand {
    gap: 12px;
  }

  .endolum-intro-mark {
    width: clamp(80px, 26svh, 156px);
    height: clamp(80px, 26svh, 156px);
  }

  .endolum-intro-wordmark {
    font-size: 24px;
  }
}

@media (max-width: 380px) {
  .endolum-intro-panel {
    padding: 20px 0 calc(100px + env(safe-area-inset-bottom, 0px));
  }

  .endolum-intro-grid {
    gap: 20px;
  }

  .endolum-intro-eyebrow {
    display: none;
  }

  .endolum-intro h1 {
    font-size: 38px;
    margin-bottom: 18px;
  }

  .endolum-intro-description {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 18px;
  }

  .endolum-intro-actions {
    gap: 8px;
    flex-wrap: nowrap;
  }

  .endolum-intro-actions .button,
  .endolum-intro-link {
    min-height: 48px;
    font-size: 13px;
  }

  .endolum-intro-actions .button {
    padding: 12px 14px;
  }

  .endolum-intro-brand {
    gap: 10px;
  }

  .endolum-intro-mark {
    width: 128px;
    height: 128px;
  }

  .endolum-intro-wordmark {
    font-size: 24px;
  }
}

@media (max-width: 380px) and (max-height: 640px) {
  .endolum-intro-panel {
    padding-top: 8px;
  }

  .endolum-intro-grid {
    gap: 10px;
  }

  .endolum-intro h1 {
    font-size: 30px;
    margin-bottom: 10px;
  }

  .endolum-intro-description {
    font-size: 14px;
    line-height: 1.45;
    margin-bottom: 10px;
  }

  .endolum-intro-actions .button,
  .endolum-intro-link {
    min-height: 44px;
  }

  .endolum-intro-actions .button {
    padding: 10px 12px;
  }

  .endolum-intro-brand {
    gap: 6px;
  }

  .endolum-intro-mark {
    width: 60px;
    height: 60px;
  }

  .endolum-intro-wordmark {
    font-size: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .endolum-intro {
    --intro-brand-offset: 0px;
  }

  .endolum-intro-grid {
    will-change: auto;
  }

  .endolum-intro[data-motion="active"]::after {
    display: none;
  }

  .endolum-intro[data-motion="active"] .endolum-intro-panel {
    position: relative;
    top: auto;
  }
}

@media (min-width: 501px) and (max-height: 500px) {
  .endolum-intro {
    --intro-brand-offset: 0px;
  }

  .endolum-intro-panel {
    padding: 12px 0 calc(104px + env(safe-area-inset-bottom, 0px));
  }

  .endolum-intro-grid {
    grid-template-columns: minmax(0, 1fr) clamp(110px, 22vw, 180px);
    gap: 28px;
    padding-left: 28px;
    padding-right: 28px;
  }

  .endolum-intro-eyebrow {
    display: none;
  }

  .endolum-intro h1 {
    font-size: clamp(30px, 4.3vw, 42px);
    max-width: 17ch;
    margin-bottom: 12px;
  }

  .endolum-intro-description {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 14px;
  }

  .endolum-intro-actions {
    gap: 10px 20px;
  }

  .endolum-intro-actions .button,
  .endolum-intro-link {
    font-size: 13px;
    min-height: 44px;
  }

  .endolum-intro-actions .button {
    padding: 10px 14px;
  }

  .endolum-intro-mark {
    width: clamp(72px, 25svh, 110px);
    height: clamp(72px, 25svh, 110px);
  }
}

@media (min-width: 501px) and (max-width: 600px) and (max-height: 360px) {
  .endolum-intro-panel {
    padding-top: 6px;
  }

  .endolum-intro-grid {
    grid-template-columns: minmax(0, 1fr) 100px;
    gap: 16px;
    padding-left: 20px;
    padding-right: 20px;
  }

  .endolum-intro h1 {
    max-width: none;
    font-size: 30px;
    margin-bottom: 8px;
  }

  .endolum-intro-description {
    line-height: 1.4;
    margin-bottom: 10px;
  }

  .endolum-intro-actions {
    gap: 8px 14px;
  }
}