:root {
  --pwai-bg: #111827;
  --pwai-fg: #ffffff;
}

#pwai-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 999999;
  display: none;
  max-width: 580px;
  margin: 0 auto;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
}

#pwai-banner.pwai-show {
  display: block;
}

.pwai-card {
  position: relative;
  border-radius: 26px;
  padding: 16px;
  color: var(--pwai-fg);
  background: linear-gradient(180deg, rgba(17,24,39,.96), rgba(17,24,39,.84));
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 22px 64px rgba(0,0,0,.28);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  overflow: hidden;
}

.pwai-top {
  display: flex;
  gap: 14px;
  align-items: center;
  padding-right: 42px;
}

.pwai-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  flex: none;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255,255,255,.15), rgba(255,255,255,.06));
  border: 1px solid rgba(255,255,255,.12);
}

.pwai-icon {
  width: 100%;
  height: 100%;
  border-radius: 18px;
  object-fit: cover;
  display: block;
  background: #fff;
}

.pwai-icon-fallback {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .04em;
  color: #fff;
  background: radial-gradient(circle at top, rgba(99,102,241,.9), rgba(17,24,39,.95));
}

.pwai-copy {
  min-width: 0;
}

.pwai-title {
  font-size: 18px;
  line-height: 1.2;
  margin: 0 0 4px;
  font-weight: 800;
}

.pwai-text {
  font-size: 13px;
  line-height: 1.5;
  margin: 0;
  color: rgba(255,255,255,.84);
}

.pwai-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.pwai-btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 11px 16px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.pwai-btn-primary {
  background: #ffffff;
  color: #111827;
}

.pwai-btn-secondary {
  background: rgba(255,255,255,.1);
  color: #ffffff;
  border: 1px solid rgba(255,255,255,.14);
}

.pwai-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 0;
  display: grid;
  place-items: center;
  padding: 0;
  margin: 0;
  background: rgba(255,255,255,.08);
  color: #fff;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

.pwai-close:hover {
  background: rgba(255,255,255,.14);
}

.pwai-ios-tip {
  display: none;
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.1);
  font-size: 13px;
  line-height: 1.55;
}

.pwai-screens {
  display: flex;
  gap: 8px;
  overflow: auto;
  padding-top: 12px;
  margin-top: 12px;
  border-top: 1px solid rgba(255,255,255,.1);
}

.pwai-screenshot {
  width: 120px;
  height: 84px;
  border-radius: 14px;
  object-fit: cover;
  flex: none;
  border: 1px solid rgba(255,255,255,.12);
}

.pwai-shot-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.pwa-installer-admin .pwai-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.pwa-installer-admin .pwai-panel {
  background: #fff;
  border: 1px solid #dcdcde;
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,.05);
}

.pwa-installer-admin .pwai-panel h2 {
  margin-top: 0;
}

@media (max-width: 960px) {
  .pwa-installer-admin .pwai-grid {
    grid-template-columns: 1fr;
  }
}