.shla-install-app {
    position: fixed;
    inset-inline-end: 18px;
    bottom: calc(18px + env(safe-area-inset-bottom, 0px));
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 11px;
    min-width: 220px;
    padding: 10px 12px;
    border: 1px solid rgba(114, 226, 255, .28);
    border-radius: 17px;
    color: #f8fafc;
    background: rgba(8, 12, 21, .9);
    box-shadow: 0 16px 42px rgba(0, 0, 0, .38), 0 0 28px rgba(85, 110, 255, .12);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    cursor: pointer;
    font-family: "Alexandria", "IBM Plex Sans Arabic", system-ui, sans-serif;
    text-align: start;
    transition: transform .2s ease, border-color .2s ease, opacity .2s ease;
}

.shla-install-app[hidden] { display: none !important; }
.shla-install-app:hover { transform: translateY(-3px); border-color: rgba(114, 226, 255, .55); }
.shla-install-app:disabled { opacity: .6; cursor: wait; }

.shla-install-app__icon {
    display: grid;
    width: 40px;
    height: 40px;
    flex: 0 0 40px;
    place-items: center;
    border-radius: 12px;
    color: #fff;
    background: linear-gradient(145deg, #6157ff, #22d3ee 62%, #a3e635);
    box-shadow: 0 8px 20px rgba(66, 153, 225, .22);
    font: 800 14px/1 Inter, system-ui, sans-serif;
}

.shla-install-app__copy { display: grid; gap: 3px; flex: 1; }
.shla-install-app__copy strong { font-size: 13px; line-height: 1.35; }
.shla-install-app__copy small { color: #94a3b8; font-size: 10px; line-height: 1.35; }
.shla-install-app__arrow { color: #67e8f9; font: 700 19px/1 Inter, system-ui, sans-serif; }

@media (max-width: 640px) {
    .shla-install-app {
        inset-inline: 12px;
        bottom: calc(12px + env(safe-area-inset-bottom, 0px));
        width: auto;
        min-width: 0;
    }
}

@media (display-mode: standalone) {
    html { min-height: 100%; background: #070a11; }
    body { min-height: 100vh; min-height: 100dvh; overscroll-behavior-y: none; }
    .shla-install-app { display: none !important; }
}