/**
 * Full-screen “update the app” experience for legacy iOS in-app browsers on the search homepage.
 * Activated via html.ios-update-gate-active (see iosWebViewUpdateGate.js).
 */

html.ios-update-gate-active,
html.ios-update-gate-active body {
  height: 100%;
  overflow: hidden;
}

html.ios-update-gate-active body {
  touch-action: none;
}

.ios-webview-update-gate {
  box-sizing: border-box;
  position: fixed;
  inset: 0;
  z-index: 200100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: max(env(safe-area-inset-top), 1.25rem) max(env(safe-area-inset-right), 1.25rem)
    max(env(safe-area-inset-bottom), 1.25rem) max(env(safe-area-inset-left), 1.25rem);
  background: radial-gradient(120% 80% at 50% 0%, rgba(13, 174, 156, 0.28) 0%, transparent 55%),
    linear-gradient(165deg, var(--gray-900) 0%, #0b1220 45%, var(--background-secondary) 100%);
  color: var(--gray-100);
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
}

html.ios-update-gate-active .ios-webview-update-gate {
  display: flex;
}

.ios-webview-update-gate__panel {
  width: min(100%, 28rem);
  max-height: min(92dvh, 40rem);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: clamp(1.25rem, 4vw, 2rem);
  border-radius: var(--radius-xl);
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(13, 174, 156, 0.12) inset;
  text-align: center;
  animation: ios-gate-ease-in 0.45s ease-out both;
}

@media (prefers-reduced-motion: reduce) {
  .ios-webview-update-gate__panel {
    animation: none;
  }
}

@keyframes ios-gate-ease-in {
  from {
    opacity: 0;
    transform: translateY(0.75rem) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.ios-webview-update-gate__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.25rem;
  height: 3.25rem;
  margin: 0 auto 1rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  font-size: 1.5rem;
  box-shadow: 0 8px 24px rgba(13, 174, 156, 0.35);
}

.ios-webview-update-gate__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 4.2vw, 1.65rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--white);
}

.ios-webview-update-gate__lead {
  margin: 0 0 1.5rem;
  font-size: clamp(0.95rem, 2.8vw, 1.05rem);
  line-height: 1.55;
  color: var(--gray-300);
}

.ios-webview-update-gate__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  min-height: 3rem;
  padding: 0.85rem 1.25rem;
  border: none;
  border-radius: var(--radius-lg);
  font-size: clamp(0.95rem, 2.6vw, 1.05rem);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  color: var(--white);
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-hover) 100%);
  box-shadow: 0 4px 16px rgba(13, 174, 156, 0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.ios-webview-update-gate__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(13, 174, 156, 0.45);
}

.ios-webview-update-gate__cta:active {
  transform: translateY(0);
}

.ios-webview-update-gate__cta:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .ios-webview-update-gate__cta:hover,
  .ios-webview-update-gate__cta:active {
    transform: none;
  }
}