.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-top: 1px solid #e0e0e0;
    display: none; /* Sadece mobile'de göster */
    z-index: 1000;
    padding: 8px 0;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

.mobile-bottom-nav .nav-item {
    flex: 1;
    text-align: center;
    padding: 8px 5px;
    text-decoration: none;
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.mobile-bottom-nav .nav-item:hover {
    background: var(--primary);
    color: var(--text-white);
}

.mobile-bottom-nav .nav-icon {
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.mobile-bottom-nav .nav-label {
    font-size: 0.75rem;
    display: block;
}

/* 720px ↓ - Büyük telefonlar optimizasyon */
@media screen and (max-width: 720px) {
    .mobile-bottom-nav {
        display: flex;
    }
    
    /* Bottom nav olduğunda footer'a padding ekle */
    body {
        padding-bottom: 70px;
    }
    
    .mobile-bottom-nav .nav-icon {
        font-size: 1.4rem;
    }
    
    .mobile-bottom-nav .nav-label {
        font-size: 0.7rem;
    }
}

/* 640px ↓ - Orta seviye telefonlar optimizasyon */
@media screen and (max-width: 640px) {
    .mobile-bottom-nav {
        padding: 6px 0;
    }
    
    .mobile-bottom-nav .nav-item {
        padding: 6px 4px;
    }
    
    .mobile-bottom-nav .nav-icon {
        font-size: 1.3rem;
        margin-bottom: 3px;
    }
    
    .mobile-bottom-nav .nav-label {
        font-size: 0.65rem;
    }
    
    body {
        padding-bottom: 65px;
    }
}

/* 550px ↓ - Küçük telefonlar optimizasyon */
@media screen and (max-width: 550px) {
    .mobile-bottom-nav {
        padding: 5px 0;
    }
    
    .mobile-bottom-nav .nav-item {
        padding: 5px 3px;
    }
    
    .mobile-bottom-nav .nav-icon {
        font-size: 1.2rem;
        margin-bottom: 2px;
    }
    
    .mobile-bottom-nav .nav-label {
        font-size: 0.6rem;
    }
    
    body {
        padding-bottom: 60px;
    }
}

/* 480px ↓ - Mini telefonlar optimizasyon */
@media screen and (max-width: 480px) {
    .mobile-bottom-nav {
        padding: 4px 0;
    }
    
    .mobile-bottom-nav .nav-item {
        padding: 4px 2px;
    }
    
    .mobile-bottom-nav .nav-icon {
        font-size: 1.1rem;
    }
    
    .mobile-bottom-nav .nav-label {
        font-size: 0.55rem;
    }
    
    body {
        padding-bottom: 55px;
    }
}

/* 430px ↓ - En küçük cihazlar optimizasyon */
@media screen and (max-width: 430px) {
    .mobile-bottom-nav {
        padding: 3px 0;
    }
    
    .mobile-bottom-nav .nav-item {
        padding: 3px 1px;
    }
    
    .mobile-bottom-nav .nav-icon {
        font-size: 1.1rem;
        margin-bottom: 1px;
    }
    
    .mobile-bottom-nav .nav-label {
        font-size: 0.7rem;
    }
    
    body {
        padding-bottom: 50px;
    }
}