/* زر التثبيت - تأثير زجاجي احترافي */
.pwa-install-btn {
    position: fixed;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    /* تأثير زجاجي (Glassmorphism) */
    background: rgba(102, 126, 234, 0.7) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 
        0 4px 20px rgba(102, 126, 234, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    display: none; /* إخفاء افتراضي - سيتم إظهاره من JavaScript */
    align-items: center;
    flex-direction: row-reverse; /* الأيقونة على الشمال والنص على اليمين */
    gap: 8px;
    z-index: 9999;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    direction: rtl;
    -webkit-tap-highlight-color: transparent;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* المواضع المختلفة */
.pwa-install-btn.pwa-position-bottom-right {
    bottom: 20px;
    right: 20px;
}

.pwa-install-btn.pwa-position-bottom-left {
    bottom: 20px;
    left: 20px;
}

.pwa-install-btn.pwa-position-top-right {
    top: 20px;
    right: 20px;
}

.pwa-install-btn.pwa-position-top-left {
    top: 20px;
    left: 20px;
}

.pwa-install-btn:hover {
    transform: translateY(-2px);
    background: rgba(102, 126, 234, 0.85) !important;
    box-shadow: 
        0 8px 30px rgba(102, 126, 234, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.pwa-install-btn:active {
    transform: translateY(0) scale(0.98);
    background: rgba(102, 126, 234, 0.9) !important;
}

.pwa-install-btn:focus {
    outline: none;
    box-shadow: 
        0 4px 20px rgba(102, 126, 234, 0.4),
        0 0 0 3px rgba(102, 126, 234, 0.3);
}

.pwa-install-btn.hidden {
    display: none !important;
}

.pwa-install-icon {
    font-size: 20px;
    line-height: 1;
}

.pwa-install-text {
    line-height: 1;
}

/* نافذة iOS - تصميم احترافي */
.pwa-ios-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    direction: rtl;
}

.pwa-ios-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.pwa-ios-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.pwa-ios-modal-content {
    position: relative;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 20px;
    padding: 35px 30px;
    max-width: 380px;
    width: 90%;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    z-index: 10001;
    animation: iosModalSlideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes iosModalSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.pwa-ios-modal-content h3 {
    margin: 0 0 25px 0;
    font-size: 22px;
    font-weight: 700;
    text-align: center;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.pwa-ios-steps {
    margin: 0;
    padding: 0;
}

.pwa-ios-steps p {
    margin: 0;
    padding: 16px 15px;
    font-size: 15px;
    line-height: 1.7;
    color: #444;
    background: #f8f9fa;
    border-radius: 12px;
    margin-bottom: 12px;
    border: 1px solid #eee;
    transition: all 0.2s ease;
}

.pwa-ios-steps p:hover {
    background: #fff;
    border-color: #ddd;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.pwa-ios-steps p:last-child {
    margin-bottom: 0;
}

.pwa-ios-steps strong {
    font-weight: 600;
}

.ios-share-icon {
    display: inline-block;
    margin: 0 6px;
    font-size: 18px;
    vertical-align: middle;
}

.pwa-ios-close {
    position: absolute;
    top: 12px;
    left: 12px;
    background: #f0f0f0;
    border: none;
    font-size: 20px;
    color: #666;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
    padding: 0;
    line-height: 1;
    font-weight: 300;
}

.pwa-ios-close:hover {
    background: #e0e0e0;
    color: #333;
    transform: scale(1.1);
}

/* ==========================================
   تصميم احترافي للموبايل
   ========================================== */

@media (max-width: 768px) {
    .pwa-install-btn {
        /* زر زجاجي احترافي على الموبايل مع النص */
        bottom: 20px;
        left: 20px;
        right: auto;
        top: auto;
        padding: 12px 20px;
        border-radius: 25px;
        font-size: 14px;
        background: rgba(102, 126, 234, 0.75) !important;
        box-shadow: 
            0 4px 20px rgba(102, 126, 234, 0.5),
            inset 0 1px 0 rgba(255, 255, 255, 0.2);
        min-width: auto;
        gap: 8px;
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
    }
    
    /* إظهار النص على الموبايل */
    .pwa-install-text {
        display: inline;
        font-size: 14px;
        font-weight: 600;
        white-space: nowrap;
    }
    
    .pwa-install-icon {
        font-size: 18px;
        margin: 0;
    }
    
    /* إلغاء تأثير المواضع المختلفة على الموبايل - دائماً على اليسار */
    .pwa-install-btn.pwa-position-bottom-right,
    .pwa-install-btn.pwa-position-bottom-left,
    .pwa-install-btn.pwa-position-top-right,
    .pwa-install-btn.pwa-position-top-left {
        bottom: 20px;
        left: 20px;
        right: auto;
        top: auto;
    }
    
    /* تأثير hover/active محسّن للموبايل */
    .pwa-install-btn:hover,
    .pwa-install-btn:active {
        transform: scale(1.02) translateY(-2px);
        background: rgba(102, 126, 234, 0.85) !important;
        box-shadow: 
            0 8px 30px rgba(102, 126, 234, 0.6),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }
    
    .pwa-ios-modal-content {
        padding: 25px 20px;
        max-width: 90%;
    }
    
    .pwa-ios-modal-content h3 {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .pwa-ios-steps p {
        font-size: 14px;
        margin: 12px 0;
    }
}

/* للشاشات الصغيرة جداً */
@media (max-width: 480px) {
    .pwa-install-btn {
        bottom: 15px;
        left: 15px;
        padding: 10px 16px;
        font-size: 13px;
        border-radius: 22px;
    }
    
    .pwa-install-text {
        font-size: 13px;
    }
    
    .pwa-install-icon {
        font-size: 16px;
    }
}

/* للشاشات الصغيرة جداً جداً (أقل من 360px) */
@media (max-width: 360px) {
    .pwa-install-btn {
        bottom: 12px;
        left: 12px;
        padding: 8px 14px;
        font-size: 12px;
        border-radius: 20px;
        gap: 6px;
    }
    
    .pwa-install-text {
        font-size: 12px;
    }
    
    .pwa-install-icon {
        font-size: 14px;
    }
}

/* إخفاء الزر في وضع standalone */
@media (display-mode: standalone) {
    .pwa-install-btn {
        display: none !important;
    }
}