.connectivity-demo {
  padding: clamp(68px, 7vw, 108px) 0;
  border-bottom: 1px solid var(--line);
  background: #fff;
  color: var(--navy);
}

.connectivity-demo-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.connectivity-demo-intro h2 {
  margin: 0;
  font-size: clamp(43px, 5vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.025em;
}

.connectivity-demo-intro p {
  max-width: 52ch;
  margin: 20px auto 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.5;
}

.connectivity-demo-visual {
  width: min(100%, 390px);
  margin: clamp(42px, 5vw, 66px) auto 0;
}

.connectivity-demo-visual video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 706 / 1486;
  border-radius: 14% / 6.7%;
  box-shadow: 0 24px 46px rgba(9, 24, 35, 0.16);
  background: #080909;
}

.connectivity-demo-controls {
  width: min(100%, 680px);
  margin-top: 40px;
}

.connectivity-demo-scenes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
}

.connectivity-demo-scenes button {
  position: relative;
  min-height: 54px;
  padding: 10px 8px 18px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.35;
  cursor: pointer;
  transition: color 180ms ease;
}

.connectivity-demo-scenes button:hover,
.connectivity-demo-scenes button.is-active {
  color: var(--navy);
}

.connectivity-demo-scenes button.is-active::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: -1px;
  left: 12px;
  height: 3px;
  background: var(--teal);
}

.connectivity-demo-description {
  min-height: 2.9em;
  margin: 23px 0 0;
  color: var(--navy);
  font-size: 19px;
  line-height: 1.5;
}

.connectivity-demo-playback {
  min-height: 44px;
  margin-top: 12px;
  padding: 5px 14px;
  border: 0;
  background: transparent;
  color: var(--teal);
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 5px;
}

.connectivity-demo-action {
  margin-top: 45px;
}

.connectivity-demo-action a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 17px;
  min-height: 54px;
  padding: 14px 22px;
  background: var(--navy);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
}

.connectivity-demo-action a:hover {
  background: var(--teal);
}

.connectivity-demo-action p {
  max-width: 56ch;
  margin: 16px auto 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.connectivity-demo :is(button, a, video):focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 4px;
}

@media (max-width: 700px) {
  .connectivity-demo { padding: 60px 0 65px; }
  .connectivity-demo-visual { width: min(100%, 310px); margin-top: 36px; }
  .connectivity-demo-controls { margin-top: 35px; }
  .connectivity-demo-scenes button { font-size: 14px; padding-inline: 3px; }
  .connectivity-demo-description { font-size: 17px; }
  .connectivity-demo-action { margin-top: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .connectivity-demo-scenes button { transition: none; }
}

/* Keep the phone, title and scene controls together within the viewport. */
.connectivity-demo { padding:40px 0 56px; --phone-height:clamp(160px,calc(100svh - 370px),520px); }
.connectivity-demo-focus { display:flex;flex-direction:column;align-items:center;gap:16px;width:100%;padding:12px 0; }
.connectivity-demo-focus .connectivity-demo-intro h2 { font-size:clamp(32px,3vw,48px); }
.connectivity-demo-focus .connectivity-demo-intro p { font-size:16px;line-height:1.45;max-width:60ch;margin:10px auto 0; }
.connectivity-demo-focus .connectivity-demo-visual { width:min(100%,calc(var(--phone-height) * 706 / 1486));margin:0; }
.connectivity-demo-focus .connectivity-demo-controls { margin:0; }
.connectivity-demo-focus .connectivity-demo-scenes button { min-height:44px;font-size:16px;padding:8px 6px 12px; }
.connectivity-demo-focus .connectivity-demo-description { font-size:16px;line-height:1.4;min-height:2.8em;margin:12px 0 0; }
.connectivity-demo-focus .connectivity-demo-playback { margin:0; }
.connectivity-demo-action { margin-top:28px; }
@media(max-width:700px){
 .connectivity-demo-focus .connectivity-demo-scenes button{font-size:14px;}
 .connectivity-demo-focus .connectivity-demo-intro p{font-size:15px;}
 .connectivity-demo-focus .connectivity-demo-description{font-size:15px;}
}