:root {
  --cats-pwa-navy: #062448;
  --cats-pwa-blue: #1768c7;
  --cats-pwa-cyan: #1fc4d8;
  --cats-pwa-surface: #f4f9fd;
  --cats-pwa-border: #cfe0ef;
  --cats-pwa-text: #102a43;
  --cats-pwa-muted: #526b82;
}

html.cats-pwa-sheet-open {
  overflow: hidden;
}

.cats-pwa-install {
  width: min(1120px, calc(100% - 32px));
  margin: 18px auto 0;
  border: 1px solid var(--cats-pwa-border);
  border-radius: 18px;
  background: linear-gradient(135deg, #f7fbff 0%, #eef9fb 100%);
  box-shadow: 0 14px 36px rgba(6, 36, 72, 0.09);
  color: var(--cats-pwa-text);
}

.cats-pwa-install[hidden],
.cats-pwa-update[hidden],
.cats-pwa-install-entry[hidden],
.cats-pwa-sheet[hidden] {
  display: none !important;
}

.cats-pwa-install__inner {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 16px;
}

.cats-pwa-install__icon {
  width: 56px;
  height: 56px;
  border-radius: 15px;
  box-shadow: 0 8px 18px rgba(6, 36, 72, 0.14);
}

.cats-pwa-install__copy {
  min-width: 0;
}

.cats-pwa-install__copy strong,
.cats-pwa-install__copy p {
  display: block;
  margin: 0;
}

.cats-pwa-install__copy strong {
  color: var(--cats-pwa-navy);
  font-size: 16px;
  line-height: 1.35;
}

.cats-pwa-install__copy p {
  margin-top: 4px;
  color: var(--cats-pwa-muted);
  font-size: 14px;
  line-height: 1.5;
}

.cats-pwa-install__actions,
.cats-pwa-update__actions,
.cats-pwa-sheet__actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.cats-pwa-install button,
.cats-pwa-update button,
.cats-pwa-sheet button,
.cats-pwa-install-entry {
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid transparent;
  padding: 10px 16px;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

.cats-pwa-install__primary,
.cats-pwa-update__primary,
.cats-pwa-sheet__primary {
  background: linear-gradient(135deg, var(--cats-pwa-blue), #235ad3);
  color: #fff;
  box-shadow: 0 8px 18px rgba(23, 104, 199, 0.2);
}

.cats-pwa-install__later,
.cats-pwa-update__later,
.cats-pwa-sheet__close {
  border-color: #b9ccde !important;
  background: #fff;
  color: var(--cats-pwa-navy);
}

.cats-pwa-install-entry {
  border-color: #b9d8e6;
  background: #f4fbfd;
  color: #075b78;
  white-space: nowrap;
}

.cats-pwa-install button:focus-visible,
.cats-pwa-update button:focus-visible,
.cats-pwa-sheet button:focus-visible,
.cats-pwa-install-entry:focus-visible,
.cats-pwa-offline a:focus-visible {
  outline: 3px solid #f2b134;
  outline-offset: 3px;
}

.cats-pwa-update {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 100;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  width: min(520px, calc(100% - 32px));
  padding: 15px;
  border: 1px solid #a8c8df;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 18px 48px rgba(6, 36, 72, 0.22);
  color: var(--cats-pwa-text);
}

.cats-pwa-update strong,
.cats-pwa-update p {
  display: block;
  margin: 0;
}

.cats-pwa-update p {
  margin-top: 3px;
  color: var(--cats-pwa-muted);
  font-size: 13px;
  line-height: 1.45;
}

.cats-pwa-sheet {
  position: fixed;
  inset: 0;
  z-index: 2147482501;
  display: grid;
  place-items: end center;
  padding: 20px;
  background: rgba(5, 23, 48, 0.6);
  backdrop-filter: blur(4px);
}

.cats-pwa-sheet__dialog {
  width: min(520px, 100%);
  max-height: min(680px, calc(100dvh - 40px));
  overflow: auto;
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(0, 20, 44, 0.3);
  padding: 22px;
  color: var(--cats-pwa-text);
}

.cats-pwa-sheet__dialog h2,
.cats-pwa-sheet__dialog p {
  margin: 0;
}

.cats-pwa-sheet__dialog h2 {
  color: var(--cats-pwa-navy);
  font-size: 22px;
  line-height: 1.3;
}

.cats-pwa-sheet__dialog > p {
  margin-top: 8px;
  color: var(--cats-pwa-muted);
  line-height: 1.55;
}

.cats-pwa-sheet__steps {
  display: grid;
  gap: 10px;
  margin: 18px 0;
  padding: 0;
  list-style: none;
  counter-reset: pwa-step;
}

.cats-pwa-sheet__steps li {
  counter-increment: pwa-step;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  align-items: center;
  min-height: 44px;
  border: 1px solid #d7e5ef;
  border-radius: 13px;
  padding: 9px 12px;
  background: #f8fbfe;
}

.cats-pwa-sheet__steps li::before {
  content: counter(pwa-step);
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--cats-pwa-navy);
  color: #fff;
  font-weight: 800;
}

.cats-pwa-sheet__status {
  min-height: 22px;
  margin: 10px 0 0;
  color: #075b78;
  font-size: 13px;
  font-weight: 700;
}

.cats-pwa-offline-page {
  min-height: 100dvh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  box-sizing: border-box;
  background:
    radial-gradient(circle at 20% 20%, rgba(31, 196, 216, 0.16), transparent 35%),
    linear-gradient(145deg, #f4f9fd, #e8f3fa);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--cats-pwa-text);
}

.cats-pwa-offline {
  width: min(560px, 100%);
  border: 1px solid #d2e2ee;
  border-radius: 24px;
  padding: clamp(24px, 6vw, 42px);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 24px 70px rgba(6, 36, 72, 0.14);
  text-align: center;
}

.cats-pwa-offline img {
  width: min(310px, 80%);
  height: auto;
}

.cats-pwa-offline__status {
  display: block;
  margin-top: 26px;
  color: #b54732;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.11em;
}

.cats-pwa-offline h1 {
  margin: 8px 0 0;
  color: var(--cats-pwa-navy);
  font-size: clamp(28px, 6vw, 40px);
}

.cats-pwa-offline p {
  margin: 14px auto 0;
  max-width: 46ch;
  color: var(--cats-pwa-muted);
  line-height: 1.65;
}

.cats-pwa-offline a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  margin-top: 24px;
  border-radius: 13px;
  padding: 0 24px;
  background: var(--cats-pwa-blue);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.cats-pwa-offline small {
  display: block;
  margin-top: 18px;
  color: #6b7f91;
}

@media (max-width: 760px) {
  .cats-mobile-quick-start__head {
    flex-wrap: wrap;
  }

  .cats-pwa-install-entry {
    margin-left: auto;
  }

  .cats-pwa-install {
    width: calc(100% - 24px);
    margin-top: 12px;
    border-radius: 16px;
  }

  .cats-pwa-install__inner {
    grid-template-columns: 48px minmax(0, 1fr);
    padding: 14px;
  }

  .cats-pwa-install__icon {
    width: 48px;
    height: 48px;
    border-radius: 13px;
  }

  .cats-pwa-install__actions {
    grid-column: 1 / -1;
    width: 100%;
  }

  .cats-pwa-install__actions button {
    flex: 1;
  }

  .cats-pwa-update {
    right: 12px;
    bottom: calc(82px + env(safe-area-inset-bottom, 0px));
    grid-template-columns: 1fr;
    width: calc(100% - 24px);
  }

  .cats-pwa-update__actions button {
    flex: 1;
  }

  .cats-pwa-sheet {
    padding: 12px 12px calc(12px + env(safe-area-inset-bottom, 0px));
  }

  .cats-pwa-sheet__dialog {
    border-radius: 20px 20px 16px 16px;
    padding: 20px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cats-pwa-install,
  .cats-pwa-update,
  .cats-pwa-sheet {
    scroll-behavior: auto;
  }
}