body {
    background: #f5f5f5;
    padding-bottom: 90px;
}


/* bottom navigation */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 65px;
    background: #fff;
    border-top: 1px solid #ddd;
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #666;
    font-size: 12px;
}

    .nav-item i {
        font-size: 22px;
    }


/* floating button */

.floating-btn {
    position: fixed;
    bottom: 75px;
    left: 50%;
    transform: translateX(-50%);
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: #198754;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 26px;
    box-shadow: 0 4px 15px rgba(0,0,0,.2);
    z-index: 2000;
}

    .floating-btn:active {
        transform: translateX(-50%) scale(.95);
    }

.bottom-nav {
    position: fixed;
    bottom: 0;
    width: 100%;
    height: 70px;
    background: #ffffff;
    border-top: 1px solid #eaeaea;
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 999;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

.nav-item {
    text-decoration: none;
    color: #888;
    font-size: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: 0.2s;
}

    .nav-item i {
        font-size: 20px;
        margin-bottom: 3px;
    }

    .nav-item.active {
        color: #0d6efd;
    }

        .nav-item.active i {
            transform: translateY(-2px);
        }

.nav-center {
    position: relative;
    top: -25px;
    width: 60px;
    height: 60px;
    background: #0d6efd;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 26px;
    text-decoration: none;
    box-shadow: 0 6px 15px rgba(0,0,0,0.25);
    transition: 0.2s;
}

    .nav-center:hover {
        transform: scale(1.05);
    }

.logout-btn {
    background: none;
    border: none;
    color: #888;
    font-size: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

    .logout-btn i {
        font-size: 20px;
        margin-bottom: 3px;
    }

    .logout-btn:hover {
        color: #dc3545;
    }

.profile-avatar {
    font-size: 70px;
    color: #6c757d;
}

.category-item {
    transition: all .2s ease;
}

    .category-item:hover {
        background: #f8f9fa;
    }

.delete-category {
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

    .delete-category:hover {
        background: #ffe5e5;
        border-color: #ffb3b3;
    }

.amount-wrapper .input-group {
    flex-wrap: nowrap;
}

.amount-wrapper .input-group-text {
    white-space: nowrap;
}