/* Radio Player v1.3 | Invitación de instalación PWA */
#pwa-install-button[hidden], #pwa-install-dialog[hidden] { display: none !important; }
.pwa-install-button {
    position: fixed;
    bottom: max(22px, env(safe-area-inset-bottom));
    right: 30px;
    z-index: 90;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    border: 1px solid rgba(0, 242, 234, .5);
    border-radius: 28px;
    padding: 13px 18px;
    background: linear-gradient(115deg, rgba(0, 111, 160, .9), rgba(19, 20, 45, .95));
    box-shadow: 0 0 18px rgba(0, 220, 230, .2), 0 8px 24px rgba(0, 0, 0, .3);
    color: #fff;
    cursor: pointer;
    font: 600 13px/1.2 'Montserrat', sans-serif;
    white-space: nowrap;
    transition: transform .18s ease, box-shadow .18s ease;
}
.pwa-install-button > .fa-mobile-screen-button { font-size: 19px; color: #4efbf6; }
.pwa-install-button > .fa-arrow-down { font-size: 12px; opacity: .85; }
.pwa-install-button:hover, .pwa-install-button:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 0 24px rgba(0, 242, 234, .4), 0 8px 24px rgba(0, 0, 0, .3);
}
.pwa-install-button:focus-visible,
.pwa-install-close:focus-visible,
.pwa-install-done:focus-visible {
    outline: 2px solid #54f9fa;
    outline-offset: 3px;
}
.pwa-install-backdrop {
    position: fixed;
    z-index: 250;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background: rgba(3, 3, 17, .78);
    backdrop-filter: blur(8px);
    overflow-y: auto;
}
.pwa-install-panel {
    position: relative;
    width: min(100%, 415px);
    max-height: calc(100dvh - 40px);
    overflow-y: auto;
    padding: 28px 25px 24px;
    background: linear-gradient(150deg, rgba(25, 23, 51, .98), rgba(7, 12, 32, .99));
    border: 1px solid rgba(55, 238, 240, .38);
    border-radius: 23px;
    box-shadow: 0 20px 70px rgba(0,0,0,.68), 0 0 30px rgba(0,212,221,.12);
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    text-align: left;
}
.pwa-install-close {
    position: absolute;
    top: 14px;
    right: 14px;
    display: inline-grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,.16);
    background: rgba(255,255,255,.08);
    color: #fff;
    cursor: pointer;
}
.pwa-install-panel-icon {
    display: inline-grid;
    place-items: center;
    width: 53px;
    height: 53px;
    border-radius: 16px;
    background: rgba(0, 201, 221, .11);
    border: 1px solid rgba(0, 240, 240, .26);
    color: #4efbf6;
    font-size: 25px;
    margin-bottom: 14px;
}
.pwa-install-panel h2 { margin: 0 38px 8px 0; font-size: 21px; line-height: 1.35; }
.pwa-install-panel p { margin: 0; font-size: 13px; line-height: 1.7; color: #cbd3e6; }
.pwa-install-guide-title { margin: 22px 0 12px; font-size: 13px; font-weight: 700; color: #60f5ef; }
.pwa-install-steps { display: grid; gap: 13px; padding: 0; margin: 0 0 17px 0; list-style: none; counter-reset: install-step; }
.pwa-install-steps li {
    counter-increment: install-step;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 13px;
    line-height: 1.55;
    color: #f5f6ff;
}
.pwa-install-steps li::before {
    content: counter(install-step);
    display: inline-grid;
    flex-shrink: 0;
    place-items: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: rgba(0, 199, 218, .19);
    border: 1px solid rgba(0, 228, 226, .39);
    font-size: 12px;
    font-weight: bold;
    color: #7af6f1;
}
.pwa-install-panel p.pwa-install-hint {
    margin: 4px 0 19px;
    color: #9caec9;
    font-size: 11px;
}
.pwa-install-done {
    width: 100%;
    padding: 12px 16px;
    color: #071323;
    font: 700 13px 'Montserrat', sans-serif;
    background: linear-gradient(100deg, #65f7e9, #0daacb);
    border: 0;
    border-radius: 12px;
    cursor: pointer;
}
@media (max-width: 768px) {
    .pwa-install-button {
        top: max(14px, env(safe-area-inset-top));
        bottom: auto;
        right: 14px;
        padding: 10px 13px;
        font-size: 12px;
    }
    .pwa-install-button > .fa-mobile-screen-button { font-size: 17px; }
    .pwa-install-panel { padding: 24px 20px 22px; }
}
@media (prefers-reduced-motion: reduce) {
    .pwa-install-button { transition: none; }
}