.pwa-install-prompt {
    position: fixed;
    z-index: 1100;
    right: max(16px, env(safe-area-inset-right));
    bottom: max(16px, env(safe-area-inset-bottom));
    left: max(16px, env(safe-area-inset-left));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    max-width: 760px;
    margin: 0 auto;
    padding: 16px 18px;
    color: #f5f7ff;
    background: #141827;
    border: 1px solid rgba(95, 194, 226, .38);
    border-radius: 14px;
    box-shadow: 0 12px 38px rgba(0, 0, 0, .42);
}

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

.pwa-install-prompt__copy {
    display: grid;
    gap: 4px;
}

.pwa-install-prompt__copy strong {
    font-size: .96rem;
}

.pwa-install-prompt__copy span {
    color: #c2c9dc;
    font-size: .85rem;
    line-height: 1.4;
}

.pwa-install-prompt__actions {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    gap: 10px;
}

.pwa-install-prompt__install,
.pwa-install-prompt__dismiss {
    min-height: 42px;
    padding: 9px 14px;
    border: 0;
    border-radius: 9px;
    font: inherit;
    font-size: .88rem;
    font-weight: 700;
    cursor: pointer;
}

.pwa-install-prompt__install {
    color: #061018;
    background: #5bd2e8;
}

.pwa-install-prompt__dismiss {
    color: #e2e7f5;
    background: transparent;
}

.pwa-install-prompt__install:focus-visible,
.pwa-install-prompt__dismiss:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 3px;
}

.pwa-install-prompt__install:disabled {
    cursor: wait;
    opacity: .65;
}

.pwa-install-dialog {
    width: min(90vw, 440px);
    padding: 0;
    color: #f5f7ff;
    background: #141827;
    border: 1px solid rgba(95, 194, 226, .5);
    border-radius: 16px;
}

.pwa-install-dialog::backdrop {
    background: rgba(4, 7, 14, .76);
}

.pwa-install-dialog__content {
    padding: 24px;
}

.pwa-install-dialog h2 {
    margin: 0 0 14px;
    font-size: 1.2rem;
}

.pwa-install-dialog ol,
.pwa-install-dialog p {
    color: #c2c9dc;
    line-height: 1.55;
}

.pwa-install-dialog li + li {
    margin-top: 8px;
}

.pwa-install-dialog p {
    margin: 16px 0 20px;
    font-size: .9rem;
}

@media (max-width: 560px) {
    .pwa-install-prompt {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
        padding: 15px;
    }

    .pwa-install-prompt__actions {
        width: 100%;
    }

    .pwa-install-prompt__install {
        flex: 1;
    }
}

@media (prefers-reduced-motion: no-preference) {
    .pwa-install-prompt {
        animation: pwa-prompt-enter .22s ease-out both;
    }

    @keyframes pwa-prompt-enter {
        from { opacity: 0; transform: translateY(10px); }
        to { opacity: 1; transform: translateY(0); }
    }
}