/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: all 0.3s;
    text-decoration: none;
}

.whatsapp-float:hover {
    background: #128C7E;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
    color: white;
}

.whatsapp-float i {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@media (max-width: 576px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 110px;
    right: 30px;
    background: #1a1a1a;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 999;
    cursor: pointer;
    transition: all 0.3s;
}

.back-to-top:hover {
    background: #333333;
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.back-to-top.show {
    display: flex;
}

@media (max-width: 576px) {
    .back-to-top {
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
        bottom: 85px;
        right: 20px;
    }
}

/* Advanced Filters */
.filters-container {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.filters-container .form-label {
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
}

.filters-container .form-select {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 0.6rem;
    font-size: 0.9rem;
    transition: border-color 0.3s;
}

.filters-container .form-select:focus {
    border-color: #1a1a1a;
    box-shadow: 0 0 0 0.2rem rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .filters-container {
        padding: 1rem;
    }
    
    .filters-container .form-label {
        font-size: 0.85rem;
    }
    
    .filters-container .form-select {
        font-size: 0.85rem;
        padding: 0.5rem;
    }
}