/* Installation promotion and the shared, browser-aware guide. */
#a2hs-banner {
  position: fixed;
  bottom: calc(92px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  z-index: 45;
  display: flex;
  align-items: center;
  gap: 10px;
  width: min(440px, calc(100% - 24px));
  padding: 10px 12px;
  border: 1px solid #c9d9dd;
  border-radius: 16px;
  background: rgba(250, 254, 254, 0.97);
  color: #203442;
  box-shadow: 0 5px 22px #152e4226;
  font-size: 14px;
}
#a2hs-banner[hidden] { display: none; }
#a2hs-banner img { width: 36px; height: 36px; border-radius: 9px; }
#a2hs-text { flex: 1; min-width: 0; }
#a2hs-install-btn { padding: 10px 13px; border: 0; border-radius: 10px; background: #246b62; color: #fff; font: inherit; cursor: pointer; }
#a2hs-close-btn { padding: 6px; border: 0; background: transparent; color: inherit; font: inherit; font-size: 23px; cursor: pointer; }

#install-guide {
  --install-surface: #ffffff;
  --install-text: #203442;
  --install-muted: #536c78;
  --install-soft: #f0f6f6;
  --install-border: #c5d6da;
  --install-accent: #246b62;
  --install-on-accent: #ffffff;
  position: fixed;
  inset: 0;
  margin: auto;
  padding: 0;
  width: min(520px, calc(100vw - 28px));
  max-height: calc(var(--app-viewport-height, 100dvh) - 28px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
  overflow: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--install-border);
  border-radius: 23px;
  background: var(--install-surface);
  color: var(--install-text);
  box-shadow: 0 22px 90px #071a3340;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.5;
  z-index: 10003;
}
#install-guide:not([open]) { display: none; }
#install-backdrop { position: fixed; inset: 0; background: #0713208c; backdrop-filter: blur(3px); z-index: 10002; }
#install-backdrop[hidden] { display: none; }
#install-guide::backdrop { background: #0713208c; backdrop-filter: blur(3px); }
.install-content { padding: 26px; }
.install-header { display: flex; align-items: center; margin-bottom: 16px; }
#install-title { margin: 0; font-size: 25px; line-height: 1.2; letter-spacing: -0.5px; }
#install-title:focus { outline: none; }
#install-close-btn { margin-left: auto; align-self: flex-start; border: 0; background: transparent; color: var(--install-muted); padding: 0 5px; font-size: 26px; line-height: 1; min-width: 32px; min-height: 32px; cursor: pointer; }
.install-device-row { margin-bottom: 12px; }
#install-platform { max-width: 100%; padding: 7px 9px; border: 1px solid var(--install-border); border-radius: 9px; background: var(--install-surface); color: var(--install-text); font: inherit; font-size: 12px; }
#install-status { margin: 0 0 12px; color: var(--install-muted); font-size: 13px; }
#install-guide button { font-family: inherit; }
#install-guide .install-primary { width: 100%; padding: 12px 16px; border: 0; border-radius: 12px; background: var(--install-accent); color: var(--install-on-accent) !important; font-size: 16px; font-weight: 700; cursor: pointer; margin-bottom: 14px; }
#install-guide .install-primary:disabled { opacity: 0.65; cursor: progress; }
#install-steps { list-style: none; padding: 0; margin: 0; }
#install-steps li { display: flex; align-items: flex-start; gap: 13px; padding: 12px 0; }
#install-steps li + li { border-top: 1px solid var(--install-border); }
.install-step-icon { flex: 0 0 34px; height: 34px; display: grid; place-items: center; border-radius: 11px; background: var(--install-soft); color: var(--install-accent); }
.install-step-icon svg { width: 23px; height: 23px; }
#install-steps strong { font-size: 14px; }
#install-steps p { margin: 3px 0 0; color: var(--install-muted); font-size: 13px; }
.install-sharing { margin-top: 16px; padding-top: 17px; border-top: 1px solid var(--install-border); }
.install-sharing > label { font-size: 12px; font-weight: 700; color: var(--install-muted); }
#install-link { flex: 1; width: 0; min-width: 60px; padding: 9px 10px; border: 1px solid var(--install-border); border-radius: 9px; background: var(--install-soft); color: var(--install-text); font: inherit; font-size: 12px; user-select: text; -webkit-user-select: text; }
.install-link-actions { display: flex; gap: 6px; margin-top: 7px; }
#install-guide .install-secondary { padding: 9px 10px; border: 1px solid var(--install-border); border-radius: 9px; background: var(--install-soft); color: var(--install-text); font-size: 13px; cursor: pointer; }
#install-link-status { margin: 5px 0 0; color: var(--install-muted); font-size: 12px; }
#install-link-status:empty { display: none; }
#install-qr-section { margin: 14px 0 0; text-align: center; }
#install-qr-toggle { margin-top: 10px; padding: 7px 0; border: 0; background: transparent; color: var(--install-muted); font: inherit; font-size: 12px; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
#install-qr { width: min(160px, 100%); margin: auto; padding: 6px; background: #fff; border-radius: 10px; }
#install-qr svg { display: block; width: 100%; height: auto; }
#install-qr-section figcaption { margin-top: 7px; color: var(--install-muted); font-size: 12px; }
#install-continue-btn { width: 100%; margin-top: 17px; padding: 10px 8px; border: 0; border-radius: 10px; background: transparent; color: var(--install-muted); font: inherit; font-size: 13px; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
#install-guide [hidden] { display: none !important; }
#install-guide button:focus-visible, #install-guide select:focus-visible, #install-guide input:focus-visible,
#a2hs-banner button:focus-visible { outline: 3px solid #30938c; outline-offset: 3px; }
body.dark-mode #install-guide {
  --install-surface: #18232d;
  --install-text: #e3ebf2;
  --install-muted: #a4b5c4;
  --install-soft: #253440;
  --install-border: #465c6d;
  --install-accent: #9fe5df;
  --install-on-accent: #102e2b;
}
body.dark-mode #a2hs-banner { color: #e3ebf2; border-color: #465c6d; }
@media (max-width: 380px) {
  .install-content { padding: 19px; }
  #install-title { font-size: 23px; }
  .install-step-icon { flex-basis: 29px; height: 29px; }
  #a2hs-banner { gap: 7px; padding: 9px; }
}