.portal-install-banner[hidden] { display: none; }
.portal-install-banner { position: fixed; right: 12px; bottom: calc(76px + env(safe-area-inset-bottom, 0px)); z-index: 1001; width: min(440px, calc(100% - 24px)); padding: 16px; box-sizing: border-box; border: 1px solid #bfdbfe; border-radius: 14px; background: #eff6ff; color: #1e3a5f; box-shadow: 0 8px 24px rgb(15 23 42 / 16%); font-family: inherit; }
.portal-install-login { bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }
.portal-install-copy strong { font-size: 15px; line-height: 1.4; }
.portal-install-copy p { margin: 6px 0 12px; font-size: 13px; line-height: 1.5; overflow-wrap: anywhere; }
.portal-install-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.portal-install-banner button, .portal-install-guide button { min-height: 44px; padding: 8px 16px; border: 1px solid #cbd5e1; border-radius: 8px; background: #fff; color: #334155; font: inherit; font-size: 13px; cursor: pointer; }
.portal-install-banner .portal-install-primary, .portal-install-guide .portal-install-primary { border-color: #1d4ed8; background: #1d4ed8; color: #fff; }
.portal-install-banner button:disabled { opacity: .6; cursor: wait; }
.portal-install-banner :focus-visible, .portal-install-guide :focus-visible { outline: 2px solid #1d4ed8; outline-offset: 3px; }
.portal-install-guide { width: min(440px, calc(100% - 24px)); max-height: calc(100dvh - 40px); padding: 20px; box-sizing: border-box; border: 1px solid #cbd5e1; border-radius: 14px; color: #334155; font-family: inherit; }
.portal-install-guide::backdrop { background: rgb(15 23 42 / 45%); }
.portal-install-guide-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.portal-install-guide h2 { margin: 0; font-size: 18px; }
.portal-install-guide form { margin: 0; }
.portal-install-guide-heading button { padding: 0; width: 44px; font-size: 24px; }
.portal-install-guide ol { padding-left: 22px; font-size: 14px; line-height: 1.6; }
.portal-install-guide li + li { margin-top: 8px; }
.portal-install-guide p { font-size: 13px; line-height: 1.5; }