/* PWA Loader - Stile globale per transizioni e caricamenti */

/* Overlay del loader */
.pwa-loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(51,59,78,.7);
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* Stato attivo del loader */
.pwa-loader-overlay.pwa-loader-active {
    opacity: 1;
    visibility: visible;
}

/* Container del loader */
.pwa-loader-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 30px;
}

/* Spinner principale - GIALLO identico al cart */
.pwa-loader-spinner {
    width: 80px;
    height: 80px;
    border: 8px solid rgb(255 215 0);
    border-left: 8px solid rgb(255 255 255);
    border-radius: 50%;
    animation: pwa-spin 0.6s linear infinite;
    box-shadow: none;
}

/* Animazione spinner - IDENTICA al cart */
@keyframes pwa-spin {
    0% {
        transform: rotate(360deg);
    }
    100% {
        transform: rotate(0deg);
    }
}

/* Testo del loader - NASCOSTO per essere identico al cart */
.pwa-loader-text {
    display: none;
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: #000;
    font-family: 'Montserrat', sans-serif;
    text-align: center;
    opacity: 0.8;
    animation: pwa-pulse 1.5s ease-in-out infinite;
}

/* Animazione pulse per il testo */
@keyframes pwa-pulse {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

/* Variante dark (opzionale, se serve dark mode) */
@media (prefers-color-scheme: dark) {
    .pwa-loader-overlay {
        background: rgba(51,59,78,.7);
    }

    .pwa-loader-spinner {
        border-color: rgba(255, 255, 255, 0.2);
        border-top-color: #fff;
        box-shadow: 0 2px 10px rgba(255, 255, 255, 0.1);
    }

    .pwa-loader-text {
        color: #fff;
    }
}

/* Supporto per safe-area su dispositivi con notch */
@supports (padding-top: env(safe-area-inset-top)) {
    .pwa-loader-overlay {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
}

/* Ottimizzazione per performance */
.pwa-loader-overlay,
.pwa-loader-spinner {
    will-change: transform, opacity;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

/* Loader inline per bottoni (riutilizzabile) */
.btn-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: pwa-spin 0.6s linear infinite;
}

/* Variante loader piccolo per azioni inline */
.pwa-loader-small {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* Variante loader grande per splash screen */
.pwa-loader-large {
    width: 64px;
    height: 64px;
    border-width: 5px;
}

/* Skeleton loader per contenuti (opzionale) */
.pwa-skeleton {
    background: linear-gradient(
        90deg,
        rgba(0, 0, 0, 0.06) 25%,
        rgba(0, 0, 0, 0.15) 50%,
        rgba(0, 0, 0, 0.06) 75%
    );
    background-size: 200% 100%;
    animation: pwa-skeleton-loading 1.5s ease-in-out infinite;
    border-radius: 4px;
}

@keyframes pwa-skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Responsive adjustments - MANTIENE dimensioni loader giallo */
@media (max-width: 768px) {
    .pwa-loader-container {
        padding: 20px;
    }

    .pwa-loader-spinner {
        width: 80px;
        height: 80px;
        border-width: 8px;
    }

    .pwa-loader-text {
        font-size: 13px;
    }
}

/* Riduce animazioni se l'utente preferisce reduced motion */
@media (prefers-reduced-motion: reduce) {
    .pwa-loader-overlay,
    .pwa-loader-spinner,
    .pwa-loader-text,
    .pwa-skeleton {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}