.pwa-install-prompt {
    position: fixed;
    right: max(1rem, env(safe-area-inset-right));
    bottom: max(1rem, env(safe-area-inset-bottom));
    left: max(1rem, env(safe-area-inset-left));
    z-index: 200;
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 0.75rem;
    width: min(100% - 2rem, 440px);
    margin-left: auto;
    padding: 0.8rem;
    color: #f8fafc;
    background: rgba(5, 8, 22, 0.94);
    border: 1px solid rgba(0, 212, 255, 0.28);
    border-radius: 18px;
    box-shadow: 0 22px 60px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    animation: pwa-prompt-in 0.45s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.pwa-install-prompt[hidden] {
    display: none;
}

.pwa-install-prompt__body {
    min-width: 0;
}

.pwa-install-prompt__body strong {
    display: block;
    margin-bottom: 0.2rem;
    font-size: 0.92rem;
}

.pwa-install-prompt__body p {
    margin: 0;
    color: #94a3b8;
    font-size: 0.82rem;
    line-height: 1.35;
}

.pwa-install-prompt__action,
.pwa-install-prompt__close {
    min-height: 40px;
    border: 0;
    border-radius: 10px;
    font: inherit;
    cursor: pointer;
    transition: transform 0.18s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.pwa-install-prompt__action {
    padding: 0.65rem 0.9rem;
    color: #06121b;
    font-size: 0.86rem;
    font-weight: 700;
    background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 125%);
    box-shadow: 0 14px 30px -18px rgba(0, 212, 255, 0.9);
}

.pwa-install-prompt__close {
    width: 40px;
    color: #cbd5e1;
    background: rgba(255, 255, 255, 0.06);
}

.pwa-install-prompt__close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.pwa-install-prompt__action:hover,
.pwa-install-prompt__close:hover {
    transform: translateY(-1px);
}

.pwa-install-prompt__action:focus-visible,
.pwa-install-prompt__close:focus-visible {
    outline: 2px solid #00d4ff;
    outline-offset: 3px;
}

@keyframes pwa-prompt-in {
    from {
        opacity: 0;
        transform: translateY(18px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

@media (max-width: 520px) {
    .pwa-install-prompt {
        grid-template-columns: 1fr auto;
        width: auto;
    }

    .pwa-install-prompt__action {
        grid-column: 1 / -1;
        grid-row: 2;
        width: 100%;
    }

    .pwa-install-prompt__close {
        grid-column: 2;
        grid-row: 1;
    }
}

@media (prefers-reduced-motion: reduce) {
    .pwa-install-prompt {
        animation: none;
    }

    .pwa-install-prompt__action,
    .pwa-install-prompt__close {
        transition: none;
    }
}